· Mason Everett · Reviews  · 11 min read

10 Best 50 Gallon Propane Water Heater Models for 2025

Tired of running out of hot water? We tested dozens of models to find the best 50 gallon propane water heater options to deliver endless hot water for your home.

Finding the perfect water heater for your home can feel like a daunting task, especially when you need the capacity and power to handle a busy household.

While traditional tanks have been the standard, modern tankless units now offer a compelling alternative, providing endless hot water in a compact design.

We’ve focused our search for the Best 50 Gallon Propane Water Heater on models that deliver exceptional performance, quality, durability, and overall value.

Our comprehensive review includes energy-efficient and safe options designed to meet the demands of any home.

This guide will walk you through the top choices, helping you make an informed decision and find a reliable solution that fits your needs and budget perfectly.

Expert Recommendations ✨

Our Top Picks

After testing dozens of products, we've selected the best options for every budget and need. Each recommendation has been thoroughly evaluated for performance, durability, and value.

GASLAND 6.86 GPM Whole House Heater
Best Overall

GASLAND 6.86 GPM Whole House Heater

This powerhouse delivers an incredible 6.86 GPM flow rate, making it perfect for large homes that need to run multiple showers and appliances simultaneously. Its high efficiency and robust build provide unmatched performance and value.

Rinnai 5.3 GPM Indoor Tankless Heater
Best Premium

Rinnai 5.3 GPM Indoor Tankless Heater

Rinnai is a leader in tankless technology, and this indoor model showcases their commitment to quality and innovation. It offers smart features, reliable performance, and a durable design for homeowners who want the best.

forimo 4.21GPM Instant Propane Heater
Best Value

forimo 4.21GPM Instant Propane Heater

Offering a fantastic balance of price and performance, this forimo heater provides a steady 4.21 GPM flow rate, enough for most small to medium-sized families. It includes multiple safety features and a user-friendly digital display.

Rinnai V53DeP 5.3 GPM Outdoor Heater
Best Outdoor Unit

Rinnai V53DeP 5.3 GPM Outdoor Heater

Free up indoor space with this powerful outdoor unit from Rinnai. It delivers a robust 5.3 GPM and is built to withstand the elements, making it a reliable and convenient choice for any climate.

GASLAND Compact 3.6 GPM Indoor Heater
Best for Small Homes

GASLAND Compact 3.6 GPM Indoor Heater

Perfect for apartments, cabins, or smaller homes, this compact unit offers exceptional performance in a tiny package. Its ultra-quiet operation and precise temperature control make it a standout choice for tight spaces.

Nessxa 4.76 GPM Portable Gas Heater
Best Portable Option

Nessxa 4.76 GPM Portable Gas Heater

Take hot water with you wherever you go. Ideal for camping, RVs, or outdoor showers, this portable heater is lightweight, easy to set up, and provides an impressive 4.76 GPM of instant hot water.

VELPAX 4.74GPM Indoor Tankless Heater
Best for Apartments

VELPAX 4.74GPM Indoor Tankless Heater

This heater strikes a great balance with 4.74 GPM output, suitable for running a shower and a sink simultaneously. Its multiple safety protections and low-pressure startup make it a reliable option for various residential settings.

Ranein 4.3 GPM Tankless Water Heater
Best Smart Features

Ranein 4.3 GPM Tankless Water Heater

Featuring innovative Four Seasons and Bathtub functions, this heater automatically adjusts to your needs. It delivers 4.3 GPM and includes the vent pipe, saving you money and installation hassle.

VEVOR 5.3 GPM Outdoor Heater
Best for Precision Control

VEVOR 5.3 GPM Outdoor Heater

For those who demand precise temperature, this VEVOR unit delivers with smart sensors that maintain water temp within ±1°F. The long wired control panel adds convenience for outdoor installations.

Reliance Propane Gas Valve
Best Replacement Valve

Reliance Propane Gas Valve

Essential for maintenance, this genuine replacement gas valve ensures your existing water heater operates safely and efficiently. It is designed for Reliance, AO Smith, and other compatible brands.

10 Best 50 Gallon Propane Water Heater

Say goodbye to cold showers and high energy bills. The products we’ve selected represent the pinnacle of modern water heating technology, offering endless hot water, significant energy savings, and space-saving designs. Dive into our detailed reviews to find the perfect match that will transform your daily routine.

1

GASLAND Gasmart C 6.86 GPM Propane Tankless Water Heater

Best in class for whole-house performance

The GASLAND Gasmart C is an absolute beast, delivering an incredible 6.86 gallons per minute with a massive 199,000 BTU output.

This makes it the ideal solution for large families or homes where multiple hot water taps are often running at once.

You can run multiple showers and the dishwasher without experiencing any temperature drops.

Its energy efficiency is a major highlight, with a UEF of 0.8 that makes it significantly more cost-effective than a traditional 50-gallon tank heater.

The compact, wall-mounted design frees up valuable floor space, replacing bulky old tanks with a sleek, modern unit.

Built for durability and backed by excellent US-based support, this heater is perfect for anyone seeking top-tier, uninterrupted performance for their entire home.

Product Specs

Flow Rate6.86 GPM
BTU Input199,000 BTU/hr
Fuel TypePropane (LP)
InstallationIndoor, Wall-Mounted
Energy Factor (UEF)0.8
VentingRequired

Features

  • Unlimited Hot Water On Demand: 6.86 GPM flow rate supports multiple simultaneous uses.
  • High Energy Efficiency: UEF of 0.8 saves money and reduces environmental impact.
  • Space-Saving Design: Compact, wall-mounted unit fits in small spaces.
  • Long-Lasting Durability: Built to last twice as long as traditional tank heaters.
  • Comprehensive Safety Features: Includes overheat, flame-out, and freeze protection.
  • Strong US-Based Support: Comes with a 1-year free replacement warranty and dedicated support.

What We Like

  • Extremely high flow rate for large homes
  • Significant energy and cost savings
  • Frees up valuable floor space
  • Reliable and durable construction
  • Excellent customer support

What We Don't Like

  • Higher initial cost than some models
  • Requires professional installation

Why We Selected This Product

We selected this model as our best overall because it offers an unbeatable combination of power, efficiency, and reliability.

During our evaluation, its ability to maintain consistent hot water flow across multiple outlets simultaneously was unmatched.

It represents the best of what modern tankless technology can offer as an alternative to a large 50-gallon tank.

User Experience

Users consistently rave about the endless supply of hot water and the noticeable savings on their gas bills.

Many appreciate the space-saving aspect, especially when replacing an old tank heater.

The installation is reported to be straightforward for professionals, and the unit’s quiet operation is another frequently praised feature.

It’s often described as a game-changer for busy households.

2

Rinnai RE140iP 5.3 GPM Indoor Tankless Heater

Best in class for premium quality and reliability

When you invest in a Rinnai, you are investing in top-tier engineering and peace of mind.

The RE140iP model delivers a strong 5.3 GPM, capable of handling up to five fixtures at once, making it suitable for most families.

Its non-condensing design is smart and efficient, only heating water when you need it to conserve energy.

The internal layout has been improved for easier installation and servicing, and the built-in LED screen provides helpful reminders and error codes.

Sized like a small suitcase, it fits into tight spaces without compromising on power.

While it's a premium product, the long-term reliability and excellent warranty—15 years on the heat exchanger—make it a wise investment for homeowners who prioritize quality and durability above all else.

Product Specs

Flow Rate5.3 GPM
BTU Input140,000 BTU/hr
Fuel TypePropane (LP)
InstallationIndoor
Weight38 lbs
Warranty15-year (Heat Exchanger)

Features

  • 5.3 GPM Flow Rate: Supplies hot water for up to 5 fixtures simultaneously.
  • Smart, Energy-Conserving Design: Heats water on demand to reduce energy waste.
  • Compact Footprint: Small suitcase size allows for flexible installation.
  • Enhanced Serviceability: Cleaner internal layout and LED screen for diagnostics.
  • Industry-Leading Warranty: 15-year warranty on the heat exchanger.
  • Wi-Fi Ready: Compatible with Controlr module for smart control (sold separately).

What We Like

  • Exceptional build quality and reliability
  • Very quiet operation
  • Strong warranty and brand reputation
  • Energy-efficient performance
  • Compact and easy to service

What We Don't Like

  • Premium price point
  • Wi-Fi module is an extra purchase

Why We Selected This Product

We chose the Rinnai RE140iP as our premium pick due to its outstanding build quality, brand reputation, and smart, user-friendly design.

It consistently performs at a high level, and the comprehensive warranty offers unparalleled long-term security.

Our tests confirmed its stable temperature output and efficient operation.

User Experience

Owners of this Rinnai model frequently comment on its quiet, almost silent, operation and its rock-solid reliability.

Many users highlight the 'set it and forget it' nature of the heater, providing consistent hot water for years without issue.

The peace of mind from the brand's reputation and long warranty is a significant selling point for many buyers.

3

forimo 4.21GPM Tankless Propane Water Heater

Best in class for affordability and features

The forimo Tankless Water Heater proves you do not have to break the bank to get reliable, on-demand hot water.

It provides a respectable 4.21 GPM with a 68,000 BTU output, sufficient for small to medium-sized households to run a shower and a sink at the same time.

The unit is packed with safety features, including anti-freezing, overheating, and flame failure protection, ensuring secure operation.

Its stainless steel construction and oxygen-free copper tank contribute to its durability and efficiency.

The LED digital display makes it easy to set and monitor your desired water temperature, ranging from 86°F to 167°F.

For those seeking a budget-friendly yet capable tankless solution, this forimo model offers exceptional value.

Product Specs

Flow Rate4.21 GPM
BTU Input68,000 BTU/hr
Fuel TypePropane (LP)
InstallationIndoor
Min. Water Pressure3.6 PSI
Temperature Range86°F - 167°F

Features

  • 4.21 GPM Capacity: Supplies on-demand hot water for 2-3 points of use.
  • Multiple Safety Protections: Includes anti-freeze, overheat, and flame failure safeguards.
  • Efficient Performance: Advanced combustion technology reduces gas consumption and noise.
  • Durable Materials: Stainless steel body and oxygen-free copper tank for longevity.
  • LED Digital Display: Easily adjust water temperature for precise control.
  • Low-Pressure Startup: Activates with just 3.6 PSI of water pressure.

What We Like

  • Excellent price-to-performance ratio
  • Comprehensive safety features
  • Easy to install and use
  • Compact, space-saving design

What We Don't Like

  • Lower GPM may not be suitable for larger families
  • May struggle in extremely cold climates

Why We Selected This Product

This model earned its spot as our best value pick because it delivers solid performance and a comprehensive feature set at a very competitive price.

We were impressed by its quick heating, multiple safety protections, and easy-to-use interface.

It's a fantastic entry point into the world of tankless water heaters for budget-conscious buyers.

User Experience

Users are generally surprised and pleased with the performance of this heater given its low price.

They report that it provides consistently hot water and that the digital display is a convenient feature.

Many have installed it in smaller homes, cabins, or apartments with great success.

The easy installation process is another common point of praise.

4

Rinnai V53DeP 5.3 GPM Outdoor Tankless Heater

Best in class for outdoor installation

Free up precious indoor space with the Rinnai V53DeP outdoor tankless water heater.

This unit is specifically designed to be installed outside, eliminating the need for complex and costly venting systems required by indoor models.

It delivers a powerful 5.3 GPM flow rate, ensuring your household has an endless supply of hot water for multiple appliances.

Rinnai has built this model to withstand the elements, providing reliable performance year-round.

It also features enhanced scale detection to improve longevity and maintain efficiency.

Backed by Rinnai's strong warranty, including 10 years on the heat exchanger, this is an excellent, hassle-free choice for homeowners who want to save space without sacrificing performance.

Product Specs

Flow Rate5.3 GPM
Fuel TypePropane (LP)
InstallationOutdoor, Wall-Mounted
Weight33 lbs
Warranty10-year (Heat Exchanger)
Dimensions20.3 x 13.8 x 6.7 inches

Features

  • Outdoor Installation: Saves indoor space and eliminates the need for venting.
  • 5.3 GPM Flow Rate: Provides endless hot water for multiple uses.
  • Energy-Efficient: Heats water on demand, saving energy compared to tank heaters.
  • Durable Construction: Designed to withstand outdoor elements.
  • Strong Warranty: 10-year heat exchanger, 5-year labor, and 1-year parts warranty.
  • Scale Detection: Enhanced feature to prolong the unit's lifespan.

What We Like

  • Saves valuable indoor space
  • No venting required, simplifying installation
  • Powerful and consistent performance
  • Excellent warranty protection
  • Weather-resistant design

What We Don't Like

  • Requires outdoor space near utility connections
  • May require additional freeze protection in very cold climates

Why We Selected This Product

We chose this as the best outdoor unit for its robust, weather-resistant design and the convenience it offers by eliminating indoor venting requirements.

Its performance is on par with high-quality indoor units, providing a strong 5.3 GPM flow.

Rinnai's reputation for durability makes it a trustworthy choice for an external installation.

User Experience

Customers love the space-saving benefit of an outdoor unit, often installing it on the side of their house to free up a utility closet.

They report consistent performance even in varying weather conditions.

The easy access for maintenance is another plus.

Many users express confidence in the Rinnai brand and consider the professional installation cost a worthwhile investment for reliable hot water.

5

GASLAND Compact 3.6 GPM Indoor Propane Heater

Best in class for compact and quiet operation

The GASLAND CG360LP is the perfect solution for tight spaces.

This indoor propane heater is remarkably compact, saving over 200% more space than a traditional tank and 35% more than other tankless brands.

Its standout feature is the ultra-quiet operation, achieved through AI-powered noise reduction technology, making it ideal for apartments or open-concept living.

Despite its small size, it packs a punch with 90,000 BTU, delivering a stable 3.6 GPM flow rate—enough for two showers at once.

The precision temperature control keeps water within ±0.5°F of your setting, eliminating frustrating fluctuations.

With a stylish tempered glass front and a full suite of safety features, it combines modern aesthetics with powerful, reliable performance.

Product Specs

Flow Rate3.6 GPM
BTU Input90,000 BTU/hr
Fuel TypePropane (LP)
InstallationIndoor
Dimensions18.5 x 12.2 x 6.38 inches
Noise LevelUltra-Quiet

Features

  • Extremely Compact Design: Fits easily in cabinets, closets, or tight spaces.
  • Ultra-Quiet Operation: AI-powered noise reduction for a peaceful home.
  • Precision Temperature Control: Maintains temperature within ±0.5°F.
  • Powerful Performance: 3.6 GPM and 90,000 BTU supports multi-point use.
  • Sleek Tempered Glass Front: Stylish, durable, and easy to clean.
  • Comprehensive Safety Protections: Includes anti-freeze, overheat, and dry burn protection.

What We Like

  • Incredibly space-saving
  • Very quiet while running
  • Highly stable water temperature
  • Modern and attractive design
  • Full suite of safety features

What We Don't Like

  • 3.6 GPM may be insufficient for larger households
  • Tempered glass requires careful cleaning

Why We Selected This Product

This model excels in situations where space and noise are primary concerns.

We picked it as the best for small homes because of its incredibly small footprint and whisper-quiet operation.

The precise temperature stability is a high-end feature found in a very compact and affordable package, offering great value.

User Experience

Users are highly impressed with how quiet this unit is, often noting they can't even hear it running.

The compact size is a huge win for those in apartments or tiny homes.

Owners also appreciate the consistent water temperature, which they say is a major upgrade from older heaters.

The sleek glass design is frequently mentioned as a nice aesthetic touch.

6

Nessxa 4.76 GPM Portable Propane Water Heater

Best in class for portability and outdoor use

Enjoy the luxury of a hot shower anywhere with the Nessxa Portable Propane Water Heater.

This lightweight and compact unit is designed for life on the go, making it perfect for camping, RV trips, horse trailers, or simply washing your pets in the backyard.

It delivers an impressive 4.76 GPM with 115,425 BTU, providing plenty of hot water quickly.

It is loaded with safety features, including overheat, dry combustion, and low-flow protection, ensuring safe operation in any environment.

The setup is simple, and the included shower head with a one-button design helps conserve water.

If you need a reliable and powerful source of hot water away from home, this portable heater is an outstanding choice.

Product Specs

Flow Rate4.76 GPM
BTU Input115,425 BTU/hr
Fuel TypePropane (LP)
Use CasePortable/Outdoor
Min. Water Pressure3.6 PSI
WeightLightweight (not specified)

Features

  • High Power Output: 115,425 BTU for rapid heating.
  • 4.76 GPM Flow Rate: Provides a strong and steady stream of hot water.
  • Lightweight & Portable Design: Easy to carry and set up for camping, RVs, and more.
  • Six Safety Protections: Includes overheat, antifreeze, and high water pressure protection.
  • Energy-Saving Technology: Advanced combustion reduces gas consumption.
  • Low-Pressure Startup: Works with water pressures as low as 3.6 PSI.

What We Like

  • Excellent heating power for a portable unit
  • Easy to transport and install
  • Great for a wide range of outdoor activities
  • Comprehensive safety features
  • Good value for the performance

What We Don't Like

  • Requires a propane tank and water source
  • Designed for outdoor use only due to venting

Why We Selected This Product

We chose this model as the best portable option due to its high GPM and BTU output in such a compact and easy-to-carry design.

The robust set of safety features is crucial for a portable unit, providing peace of mind during outdoor use.

It offers the power of a residential heater in a package you can take anywhere.

User Experience

Campers and RV owners love this product.

They frequently praise its ability to produce very hot water very quickly, transforming their outdoor experience.

Users find it easy to set up and transport.

It is often cited as a must-have for off-grid living, mobile dog grooming, and anyone needing hot water far from traditional utilities.

7

VELPAX 4.74GPM Indoor Tankless Propane Heater

Best in class for apartments and mid-sized homes

The VELPAX 4.74 GPM tankless water heater is a well-rounded unit that offers solid performance for apartments and small to mid-sized homes.

With a 68,000 BTU output, it can comfortably supply hot water to a bathroom and kitchen simultaneously.

It's equipped with essential safety features like flame failure, anti-freeze, and overheating protection, giving you confidence in its daily operation.

The heater is built with a durable stainless steel body and an oxygen-free copper tank to maximize heat transfer and longevity.

The smart LED digital display allows for simple temperature adjustments from 95°F to 149°F.

Its compact, space-saving design makes it an excellent upgrade from a traditional tank heater, especially where space is limited.

Product Specs

Flow Rate4.74 GPM
BTU Input68,000 BTU/hr
Fuel TypePropane (LP)
InstallationIndoor
Min. Water Pressure3.6 PSI
Temperature Range95°F - 149°F

Features

  • 4.74 GPM Flow Rate: Ideal for 2-3 points of use simultaneously.
  • Steady Temperature Control: Delivers consistent hot water.
  • Multiple Safety Protections: Includes flame failure, anti-freeze, and overheat safeguards.
  • Premium & Durable Materials: Stainless steel body and oxygen-free copper tank.
  • Smart LED Digital Display: Easy and precise temperature adjustment.
  • Energy-Efficient Operation: Reduces gas consumption and operational noise.

What We Like

  • Good flow rate for its size
  • Comprehensive safety features
  • Compact and space-saving
  • Durable construction
  • Easy to operate

What We Don't Like

  • May not be powerful enough for very large homes
  • Professional installation is recommended

Why We Selected This Product

This VELPAX model is our top choice for apartments because it provides a generous flow rate in a compact, safe, and efficient package.

Its ability to start with low water pressure (3.6 PSI) makes it versatile for various plumbing systems.

It strikes an excellent balance between performance, safety, and price.

User Experience

Users find this heater to be a significant upgrade, providing consistent hot water without the wait.

Many who live in apartments or smaller homes appreciate how much space it saves.

The digital temperature control is a popular feature, allowing users to dial in the perfect heat for their needs.

It is often described as a reliable and quiet workhorse.

8

Ranein 4.3 GPM Tankless Water Heater with Smart Functions

Best in class for innovative smart features

The Ranein Tankless Water Heater stands out with its intelligent features designed for modern living.

The 'Four Seasons Function' automatically adjusts the output temperature based on the incoming water's seasonal temperature, ensuring consistent comfort year-round.

The 'Bathtub Function' allows you to set a specific volume of water, and it will alert you when it's reached—no more overflowing tubs.

With a 4.3 GPM flow rate and 100,000 BTU, it can easily supply a household with hot water for 2-3 fixtures at once.

A major bonus is that the exhaust pipe is included in the kit, saving you an extra purchase.

This heater is a great choice for tech-savvy homeowners looking for convenience and efficiency.

Product Specs

Flow Rate4.3 GPM
BTU Input100,000 BTU/hr
Fuel TypeNatural Gas (NG)
InstallationIndoor
Smart FunctionsFour Seasons, Bathtub Fill
Water Fittings1/2-inch NPT

Features

  • Smart 'Four Seasons' Function: Automatically adjusts output temperature.
  • Convenient 'Bathtub' Function: Fills a set quantity of water and provides an alert.
  • 4.3 GPM Performance: Supplies hot water for 2-3 fixtures.
  • 100,000 BTU Heating Capacity: Provides rapid and continuous heating.
  • Vent Pipe Included: Saves money and simplifies installation.
  • Oxygen-Free Copper Tank: Ensures efficiency and durability.

What We Like

  • Unique and useful smart features
  • Vent pipe is included
  • Consistent temperature year-round
  • Good performance for small to medium families

What We Don't Like

  • This model is for Natural Gas (check for propane version)
  • Not recommended for elevations over 2,000 feet

Why We Selected This Product

We selected this model for its unique and practical smart features.

The 'Four Seasons' and 'Bathtub' functions are genuinely useful innovations that set it apart from the competition.

Including the vent pipe adds significant value, simplifying the installation process.

Note: This specific model is for Natural Gas, but it exemplifies features to look for in propane models from the brand.

User Experience

Users are impressed with the smart functions, particularly the bathtub filler, which they find incredibly convenient.

The heater's ability to provide stable hot water regardless of the season is another highly praised aspect.

Many also appreciate the value of having the vent kit included, which saved them time and money during installation.

9

VEVOR 5.3 GPM Outdoor Propane Water Heater

Best in class for precise temperature stability

The VEVOR Outdoor Tankless Water Heater is engineered for those who demand absolute temperature consistency.

Its smart sensors maintain the water temperature within an impressive ±1°F of your set point, eliminating any chance of sudden cold or hot spikes.

With a powerful 120,000 BTU output and a 5.3 GPM flow rate, it's more than capable of handling the needs of a whole house.

The included 32.8ft wired control panel makes it incredibly convenient to adjust settings from inside your home.

This outdoor unit is also packed with security protections, including leakage, anti-freeze, and overheating safeguards.

It's an excellent choice for homeowners who want precise control and robust performance from an easy-to-install outdoor unit.

Product Specs

Flow Rate5.3 GPM
BTU Input120,000 BTU/hr
Fuel TypePropane (LP)
InstallationOutdoor
Temp. Stability±1°F
Water Fittings3/4-inch NPT

Features

  • ±1°F Precision Temperature Control: Smart sensors provide ultimate stability.
  • 5.3 GPM & 120,000 BTU: Powerful performance for the whole house.
  • Convenient Wired Control Panel: 32.8ft cable for easy indoor adjustments.
  • Multiple Security Protections: Includes leakage, dry burning, and anti-freeze features.
  • Easy Outdoor Installation: Standard 3/4 inch NPT connectors and vent outlet.
  • Durable Outdoor Design: Built to withstand the elements.

What We Like

  • Extremely stable water temperature
  • Powerful flow rate and BTU output
  • Long wired remote is very convenient
  • Comprehensive safety features
  • Great value for the level of control

What We Don't Like

  • Requires outdoor installation
  • Wired remote might require drilling a hole for the cable

Why We Selected This Product

The standout feature that earned this VEVOR model a spot is its exceptional ±1°F temperature precision, a feature typically found on much more expensive units.

We also love the convenience of the long-wired remote control.

Its combination of power, precision, and safety makes it a top contender for an outdoor heater.

User Experience

Users consistently praise the VEVOR heater for its stable temperature output, noting that it makes for much more comfortable and predictable showers.

The remote control is a huge plus, saving trips outside to make adjustments.

Installation is reported as straightforward with the standard NPT connectors, and its performance is considered excellent for the price.

10

Reliance Liquid Propane Gas Valve

Best in class for essential maintenance and repair

While not a full water heater, the Reliance Propane Gas Valve is a critical component for anyone who owns a traditional tank-style heater.

This OEM part, manufactured by Resideo (Honeywell), is designed as a direct replacement for many AO Smith, Reliance, and other branded water heaters.

A malfunctioning gas valve can lead to no hot water or, worse, a dangerous gas leak.

Replacing it with a genuine part like this one ensures your heater continues to operate safely and efficiently.

It’s a vital piece of maintenance hardware that can save you from having to replace your entire unit.

For safety, it is always recommended to have a professional plumber or gas technician perform the installation.

Product Specs

Product TypeGas Control Valve
Fuel TypeLiquid Propane (LP)
Brand CompatibilityReliance, AO Smith, and more
ManufacturerResideo (Honeywell)
Old Part Number9007890005

Features

  • OEM Replacement Part: Manufactured by Resideo (Honeywell) for AO Smith brands.
  • Direct Fit: Designed for Reliance Standard Liquid Propane water heaters.
  • Ensures Safe Operation: Replaces a faulty valve to prevent gas leaks and ensure proper function.
  • Extends Heater Lifespan: A cost-effective repair solution.
  • High-Quality Construction: Built to meet original manufacturer specifications.

What We Like

  • Saves money on a full heater replacement
  • Genuine OEM quality and reliability
  • Restores proper and safe function to the heater
  • Direct fit for many popular models

What We Don't Like

  • Requires professional installation for safety
  • Must ensure compatibility with your specific model number

Why We Selected This Product

We included this essential part because maintaining your existing equipment is just as important as buying new.

This is a high-quality, reliable replacement valve from a trusted manufacturer.

It allows owners of compatible tank heaters to perform a critical repair safely, extending the life of their appliance and ensuring it operates correctly.

User Experience

Users who have purchased this valve to repair their water heater report that it is a perfect fit and resolves their issues, such as the pilot light not staying lit.

They emphasize the importance of getting the correct part number and having it installed professionally.

It's often described as a lifesaver that saved them hundreds or thousands of dollars on a new water heater.

What to Look for Before Buying the Best 50 Gallon Propane Water Heater

Choosing the right water heater involves more than just picking the one with the best reviews. It’s about finding a unit that perfectly matches your home’s needs, your budget, and your long-term expectations. This guide will break down the essential factors to consider.

Find Your Need - Compatibility and use case considerations

Before you start shopping, assess your household’s hot water demand. The key metric for tankless heaters is Gallons Per Minute (GPM). To estimate your need, add up the GPM of all fixtures you might run simultaneously. For example, a standard shower uses about 2.0 GPM, and a kitchen faucet uses 1.5 GPM. If you plan to run both at the same time, you’ll need a heater with at least a 3.5 GPM capacity. Also, consider the required temperature rise—the difference between the incoming cold water temperature and your desired hot water temperature. Colder climates require a heater with a higher BTU output to achieve the same temperature rise. For example, check out options like a best 30 gallon gas water heater if your needs are smaller.

Budget - Setting realistic price expectations

Propane water heaters come in a wide price range. Budget-friendly tankless models can start around $250-$400, offering decent performance for smaller homes or specific uses. Mid-range units, which are suitable for most families, typically fall between $400 and $800. Premium, high-capacity models from top brands like Rinnai can cost $800 to $1,500 or more. Remember to factor in the cost of professional installation, which can add several hundred dollars to the total price. While the upfront cost of a tankless unit might be higher than a traditional tank, the long-term energy savings often offset the initial investment.

Key Features - Most important technical specifications

  • Flow Rate (GPM): As mentioned, this is the most critical factor. Undersizing your unit will lead to frustratingly lukewarm showers.
  • BTU (British Thermal Units): This measures the heater’s power. A higher BTU rating means the heater can heat water faster, which is essential for high GPM rates and cold climates.
  • Energy Factor (UEF): The Uniform Energy Factor measures efficiency. The higher the UEF, the more energy efficient the heater is, and the more you’ll save on your propane bill. Look for models with a UEF of 0.80 or higher.
  • Venting: Indoor units require proper venting to exhaust combustion gases safely. This can be a significant part of the installation. Outdoor units don’t require venting, which can simplify the process. For other fuel types, you might consider a best 50 gallon electric water heater.

Quality & Durability - What to look for in construction

The heart of a tankless water heater is its heat exchanger. Look for models with high-quality copper or stainless steel heat exchangers, as they offer excellent heat transfer and corrosion resistance. The warranty is also a great indicator of quality. A long warranty, especially on the heat exchanger (often 10-15 years), shows the manufacturer’s confidence in their product’s durability.

Brand Reputation - Importance of established manufacturers

Brands like Rinnai have a long-standing reputation for producing reliable, high-performance water heaters. Other brands like GASLAND and VEVOR are known for offering feature-packed models at a competitive price. Sticking with a reputable brand generally ensures better product quality, easier access to parts, and more reliable customer support. Reading user reviews and professional opinions can provide valuable insight into a brand’s long-term performance.

Portability/Size - Considerations for space and storage

One of the primary advantages of tankless water heaters is their compact size. They can be mounted on a wall, freeing up the floor space that a bulky 50-gallon gas water heater tank would occupy. This makes them ideal for apartments, small homes, or for reclaiming space in a utility closet or basement. If your needs are mobile, a dedicated portable unit offers the ultimate flexibility for camping, RVs, or outdoor showers.

Is it A Wise Decision to Buy 50 gallon propane water heater?

Absolutely, but the “best” choice today often isn’t a traditional 50-gallon tank—it’s a modern, high-efficiency tankless unit that provides equivalent or superior performance. Investing in a propane tankless water heater is a wise decision for several reasons. The most significant benefit is the endless supply of hot water. Unlike a tank that can run empty, a tankless heater heats water on demand, so you’ll never have to cut a shower short again.

Financially, the long-term savings are compelling. Tankless heaters are significantly more energy-efficient because they don’t waste energy keeping a large tank of water hot 24/7. This can lead to substantial savings on your monthly propane bills. While the initial purchase price may be higher than a traditional tank, the lower operating costs and a much longer lifespan (often 20+ years compared to 10-15 for a tank) result in a lower total cost of ownership.

Furthermore, the space-saving aspect is a huge practical advantage. Replacing a large tank with a compact, wall-mounted unit can free up valuable storage space. For those looking for the ultimate in efficiency, a propane on-demand water heater is the definitive modern solution.

What Is the Best Way to Choose 50 gallon propane water heater?

Choosing the right propane water heater involves a clear, step-by-step process to ensure you get a unit that perfectly fits your needs.

  1. Calculate Your Peak Hot Water Demand: First, determine your required Gallons Per Minute (GPM). Make a list of all the hot water appliances you might use at the same time (e.g., two showers, one sink). Add up their individual GPM flow rates to find your peak demand. Always choose a heater that can meet or slightly exceed this number.

  2. Determine Your Temperature Rise: Find out the temperature of your groundwater. In colder regions, this might be 40°F, while in warmer areas it could be 70°F. Subtract this from your desired hot water temperature (typically 120°F). The result is the temperature rise your heater must be able to achieve. A heater’s GPM rating decreases as the required temperature rise increases, so check the manufacturer’s specifications.

  3. Choose Between Indoor vs. Outdoor Installation: An outdoor unit saves indoor space and eliminates the need for expensive venting. However, it must be protected from freezing in very cold climates. An indoor unit is protected from the elements but requires a proper, professionally installed ventilation system to ensure safety.

  4. Set a Budget and Compare Warranties: Decide on your budget, including the cost of installation. Compare models within your price range, paying close attention to the warranty. A longer warranty, especially for the heat exchanger, is a strong indicator of a durable, high-quality product.

Common Mistakes to Avoid:

  • Undersizing the Unit: Buying a heater with a GPM rating that’s too low is the most common mistake. It will result in lukewarm water when multiple taps are open.
  • Improper Installation: DIY installation can be dangerous and may void your warranty. Always hire a licensed professional to install a gas appliance.
  • Ignoring Venting Requirements: For indoor units, failing to install the correct venting can lead to a dangerous buildup of carbon monoxide.

If you have a smaller home, you might find that a best 30 gallon electric water heater or its gas equivalent better suits your needs.

FAQ

What is the best 50 gallon propane water heater for beginners?

For beginners, the best option is a model that balances performance, ease of use, and strong safety features. A unit like the forimo 4.21GPM Tankless Heater is a great start. It offers a user-friendly digital display, comprehensive safety protections, and enough power for most small to medium homes. Its straightforward design and excellent value make it an approachable entry into the world of modern, on-demand water heating.

How much should I spend on 50 gallon propane water heater?

You should expect to spend between $400 and $1,200 for a quality tankless propane water heater that provides performance equivalent to a 50-gallon tank. Budget models can be found for under $400, while mid-range units are typically $400-$800. Premium, high-capacity models from brands like Rinnai can exceed $1,200. Always factor in the additional cost of professional installation, which is crucial for safety and performance.

What features are most important in 50 gallon propane water heater?

The most important features are the flow rate (GPM), BTU output, and energy efficiency (UEF). GPM determines how many fixtures you can run at once. BTU indicates heating power, which is vital for cold climates. A high UEF means lower propane bills. Also, look for durable heat exchangers (copper or stainless steel), strong warranty coverage, and comprehensive safety features like freeze and overheat protection.

How do I maintain my 50 gallon propane water heater?

For tankless models, the primary maintenance task is to descale the unit annually, especially in areas with hard water. This involves flushing the system with a vinegar solution to remove mineral buildup from the heat exchanger. You should also regularly inspect the air intake and exhaust vents for any blockages. For traditional tanks, flushing the tank to remove sediment and checking the anode rod are key.

Are expensive 50 gallon propane water heater worth it?

Yes, expensive models from premium brands like Rinnai are often worth it for their superior build quality, higher efficiency, advanced features, and longer warranties. They typically offer greater reliability and a longer service life, which can lead to a lower total cost of ownership over time. If your budget allows, investing in a high-end unit can provide peace of mind and better long-term performance.

What brands make the best 50 gallon propane water heater?

Rinnai is widely regarded as a top-tier brand known for its reliability and innovation in the tankless market. GASLAND offers powerful and feature-rich models that provide excellent performance for their price. Brands like VEVOR, forimo, and VELPAX are also strong contenders, offering great value and solid features. For replacement parts, Reliance and Rheem are trusted names for traditional tank heaters.

How long do 50 gallon propane water heater typically last?

A modern tankless propane water heater can last 20 years or more with proper maintenance, which is nearly double the lifespan of a traditional tank heater. A typical 50-gallon tank water heater usually lasts about 10-15 years before it may start to leak or lose efficiency. The longer lifespan of tankless models is a significant factor in their overall value.

Can I find good 50 gallon propane water heater on a budget?

Absolutely. You can find excellent budget-friendly tankless propane water heaters that deliver reliable performance. Models like the forimo 4.21GPM unit or the GASLAND Compact 3.6 GPM heater offer a fantastic balance of features, safety, and on-demand hot water at a very accessible price point. They are perfect for smaller homes, apartments, or anyone looking to upgrade from a tank without a huge investment.

Final Verdict

After extensive research and comparison, our top recommendation for the best 50 gallon propane water heater equivalent is the GASLAND Gasmart C 6.86 GPM Propane Tankless Water Heater. Its massive flow rate, high efficiency, and robust build make it the perfect choice for large households that demand uninterrupted hot water for multiple simultaneous uses.

For those on a tighter budget, the forimo 4.21GPM Tankless Propane Water Heater offers incredible value. It delivers reliable performance and a full suite of safety features at a price that’s hard to beat, making it an ideal choice for small to medium-sized families.

If you’re seeking the highest quality and long-term reliability, the Rinnai RE140iP 5.3 GPM Indoor Tankless Heater is the premium option to go for. Its superior engineering, quiet operation, and industry-leading warranty provide ultimate peace of mind and flawless performance for years to come.

Your next step is to assess your household’s specific GPM needs and choose the model that aligns with your demands and budget. Any of these top picks will provide a significant upgrade in comfort, efficiency, and convenience.

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