Updated:March, 2026

10 Best Gas Rheem Hot Water Heater 50 Gal of 2026

Best Choice

9.9

Outstanding

Rheem

Rheem 50 Gal. Smart High Efficiency Hybrid Heat Pump Water Heater with 10-Year Warranty

Free Shipping

Why We Love It

It must be wired into your homes electrical system and will typically require a dedicated electrical circuit (similar to large electric appliances). This isnt a simple plug-in appliance.

Check Price

Why We Love It

It must be wired into your homes electrical system and will typically require a dedicated electrical circuit (similar to large electric appliances). This isnt a simple plug-in appliance.

How We Find the Top Picks

We use smart data tools to review thousands of products and stores, analyzing ratings, reviews, and popularity trends to highlight what truly matters to shoppers like you.

Our experts then refine the results, blending AI insights with real user experiences to deliver accurate, up-to-date rankings that help you choose with confidence.

9.5

Excellent

Rheem

Rheem PROG50-36P RH62 Professional Classic Tall Residential 36K BTU Atmospheric Liquid Propane Gas Water Heater, 50-Gallon

Free Shipping

Main Highlights

Low Emissions: Eco-friendly burner, low Knox design, Meets 40 ng/J Knox requirements
Rheum exclusive R-Tech (registered) anode rod provides long-lasting tank protection
Easy to light - no matches required. EverKleen patented system fights sediment build-up
Enhanced-flow brass drain valve - Low lead compliant
This new Model number replaces the old Model number 42VR50-36PF

Check Price

Main Highlights

Low Emissions: Eco-friendly burner, low Knox design, Meets 40 ng/J Knox requirements
Rheum exclusive R-Tech (registered) anode rod provides long-lasting tank protection
Easy to light - no matches required. EverKleen patented system fights sediment build-up
Enhanced-flow brass drain valve - Low lead compliant
This new Model number replaces the old Model number 42VR50-36PF

9.5

Excellent

Rheem

Rheem PROE50 M2 RH95 50-Gallon Professional Classic Medium Residential Electric Water Heater, Gray; Enhanced-flow Brass Drain Valve; 18.75 Amps; Automatic Thermostat; Anode Rod

Free Shipping

Main Highlights

Provides ample hot water for households with 3-5 people or homes with 3+ bathrooms
This water heater takes up less space than competitive models making it a great choice for replacing an existing water heater
Reliable hot water solution from Rheem, the global leader in water heating
Anode rod provides long-lasting tank protection
Automatic thermostat keeps water at desired temperature
Enhanced-flow brass drain valve
Temperature and pressure relief valve included
InfoCue - visible LED indicator

Check Price

Main Highlights

Provides ample hot water for households with 3-5 people or homes with 3+ bathrooms
This water heater takes up less space than competitive models making it a great choice for replacing an existing water heater
Reliable hot water solution from Rheem, the global leader in water heating
Anode rod provides long-lasting tank protection
Automatic thermostat keeps water at desired temperature
Enhanced-flow brass drain valve
Temperature and pressure relief valve included
InfoCue - visible LED indicator

9.2

Excellent

Eau

44 Inch Flexible Magnesium Anode Rod, Eau Water Heater Anode Rod for GE, Rheem, Reliance, Richmond, Kenmore Water Heater Including 27mm Hex Socket Tool and Teflon Tape

Free Shipping

Main Highlights

The magnesium anode able to give more electrochemically negative to prevent your tank dissolving itself with reasonable costs. Its best choice for your replacement if you do have smelling water problems.
SIZE - Flexible 44 Inch-long anode rod is hinged into four parts. Each part is less than 12 Inches allowing you to replace anode rods easily even in a narrow space. Just safely cut it shorter with a simple hacksaw.
MAGNESIUM ANODE ROD KIT - The best choice to extending service life of your water heater tank from corroding is replacing water rod! This water heater anode rod makes it simple with everything you need, Anode Rod, Teflon Sealing Tape and 27mm chrome finished socket, all in one box.
FITS - Almost all water heaters including; A.O. smith,Rheem, Reliance, Richmond, Kenmore, State, GE and many more that also use the standard ¾" NPT Anode Rod Connection.
REPLACEMENT EASILY - Anodes are designed to be easily and regularly replaced. Their only purpose is to decay instead of your water heater, and that's exactly what it will do. As soon as the anode rod is depleted and fully decayed, the water heater begins to rust, then crack, fail and leak. Inspecting and changing your anode rod every 2 years will keep your water heaters tank, strong reliable and off your mind!

Check Price

Main Highlights

The magnesium anode able to give more electrochemically negative to prevent your tank dissolving itself with reasonable costs. Its best choice for your replacement if you do have smelling water problems.
SIZE - Flexible 44 Inch-long anode rod is hinged into four parts. Each part is less than 12 Inches allowing you to replace anode rods easily even in a narrow space. Just safely cut it shorter with a simple hacksaw.
MAGNESIUM ANODE ROD KIT - The best choice to extending service life of your water heater tank from corroding is replacing water rod! This water heater anode rod makes it simple with everything you need, Anode Rod, Teflon Sealing Tape and 27mm chrome finished socket, all in one box.
FITS - Almost all water heaters including; A.O. smith,Rheem, Reliance, Richmond, Kenmore, State, GE and many more that also use the standard ¾" NPT Anode Rod Connection.
REPLACEMENT EASILY - Anodes are designed to be easily and regularly replaced. Their only purpose is to decay instead of your water heater, and that's exactly what it will do. As soon as the anode rod is depleted and fully decayed, the water heater begins to rust, then crack, fail and leak. Inspecting and changing your anode rod every 2 years will keep your water heaters tank, strong reliable and off your mind!

9.0

Excellent

Rheem

Rheem 72-40-2 240V / 4500W 40 Gallon Electric Water Heater

Free Shipping

Main Highlights

Rheemglas lined tank
R-Foam insulation
Anode Rod protects against corrosion
Automatic temperature control thermostat
Direct immersion heating element

Check Price

Main Highlights

Rheemglas lined tank
R-Foam insulation
Anode Rod protects against corrosion
Automatic temperature control thermostat
Direct immersion heating element

8.8

Very Good

Rheem

Rheem Natural Gas Condensing Tankless Water Heater Indoor Up To 9 GPM, 180,000 BTUs Continuous Super High Efficient Hot Water

Free Shipping

Main Highlights

Flow rate of 0.4 - 9 GPM
Available temperature settings range from 100 to 140F (default setting of 120F)
Includes electric ignition
Covered under 1 year labor, 15 year heat exchanger, and 5 year parts manufacturer warranties
Width 17-11/16-in

Check Price

Main Highlights

Flow rate of 0.4 - 9 GPM
Available temperature settings range from 100 to 140F (default setting of 120F)
Includes electric ignition
Covered under 1 year labor, 15 year heat exchanger, and 5 year parts manufacturer warranties
Width 17-11/16-in

8.6

Very Good

GASLAND

GASLAND Gasmart E 199000 BTU Tankless Water Heater, Up to 7.6 GPM, Whole House Natural Gas Indoor Installation Residential On-demand Instant Hot Water Heater, CE686NG

Free Shipping

Main Highlights

Unlimited Hot Water On Demand -- Unlike traditional tank water heaters, our tankless gas water heater provides unlimited hot water whenever you need it. No more waiting for the water to reheat enjoy continuous hot water for showers, laundry, or washing dishes without interruption.
Energy Efficient & Eco-Friendly -- With an industry-leading UEF of 0.8, our tankless water heater is 34% more energy-efficient than a 50-gallon tank water heater, whose UEF is only 0.6. Save on your energy bill while reducing NOx greenhouse gas emissions by 65% compared to a 50-gallon gas tank. Its better for the environment and your wallet!
Space-Saving Design & Easy Installation -- Say goodbye to bulky water tanks! Our compact, suitcase-sized design fits easily into small spaces like closets, basements, or laundry rooms. Enjoy more room for your home while our easy-to-install wall-mounted unit provides on-demand hot water wherever you need it.
Long-Lasting Durability & Reliability -- Built to last, our tankless water heater has a lifespan twice that of traditional tank heaters. With fewer parts and no tank to leak, its easier to maintain and repair. Plus, its designed for year-round reliability with built-in safety features like overheat protection, flame-out protection, and freeze protection.
U.S.-Based Customer Support & Warranty -- We stand behind our products with a comprehensive warranty. If your water heater stops working within a year, well replace it for free. Our dedicated U.S.-based customer support team is always ready to assist you with any questions.

Check Price

Main Highlights

Unlimited Hot Water On Demand -- Unlike traditional tank water heaters, our tankless gas water heater provides unlimited hot water whenever you need it. No more waiting for the water to reheat enjoy continuous hot water for showers, laundry, or washing dishes without interruption.
Energy Efficient & Eco-Friendly -- With an industry-leading UEF of 0.8, our tankless water heater is 34% more energy-efficient than a 50-gallon tank water heater, whose UEF is only 0.6. Save on your energy bill while reducing NOx greenhouse gas emissions by 65% compared to a 50-gallon gas tank. Its better for the environment and your wallet!
Space-Saving Design & Easy Installation -- Say goodbye to bulky water tanks! Our compact, suitcase-sized design fits easily into small spaces like closets, basements, or laundry rooms. Enjoy more room for your home while our easy-to-install wall-mounted unit provides on-demand hot water wherever you need it.
Long-Lasting Durability & Reliability -- Built to last, our tankless water heater has a lifespan twice that of traditional tank heaters. With fewer parts and no tank to leak, its easier to maintain and repair. Plus, its designed for year-round reliability with built-in safety features like overheat protection, flame-out protection, and freeze protection.
U.S.-Based Customer Support & Warranty -- We stand behind our products with a comprehensive warranty. If your water heater stops working within a year, well replace it for free. Our dedicated U.S.-based customer support team is always ready to assist you with any questions.

8.3

Very Good

Rinnai

Rinnai REHP50 Electric Heat Pump Water Heater – 50 Gallon, 240V, 30A, Energy Star Certified, 3.75 UEF, 73 Gallon First Hour Delivery for Residential Use

Free Shipping

Main Highlights

Energy-efficient performance: Energy Star Certified. Extracts heat from ambient air to deliver consistent hot water with zero emissions and a high Uniform Energy Factor (UEF) of 3.75, reducing energy costs
High first-hour delivery: Provides up to 73 gallons of hot water in the first hourideal for households of 34 people with high demand
Demand-Response Enabled: Saves you money by communicating with local utilities to reduce energy usage during peak hours
Durable & reliable design: Built with a glass-lined steel tank, UL and NSF certified, and backed by a 10-year residential warranty on tank and parts
Easy installation & compatibility: Operates on 240V / 30A, with standard 3/4" MNPT inlet/outlet connections and R134a refrigerant for efficient heat transfer. Zero clearance required on top, back, and sides

Check Price

Main Highlights

Energy-efficient performance: Energy Star Certified. Extracts heat from ambient air to deliver consistent hot water with zero emissions and a high Uniform Energy Factor (UEF) of 3.75, reducing energy costs
High first-hour delivery: Provides up to 73 gallons of hot water in the first hourideal for households of 34 people with high demand
Demand-Response Enabled: Saves you money by communicating with local utilities to reduce energy usage during peak hours
Durable & reliable design: Built with a glass-lined steel tank, UL and NSF certified, and backed by a 10-year residential warranty on tank and parts
Easy installation & compatibility: Operates on 240V / 30A, with standard 3/4" MNPT inlet/outlet connections and R134a refrigerant for efficient heat transfer. Zero clearance required on top, back, and sides

8.1

Very Good

Rheem

Rheem RTG-70DVLP-3 High Efficiency Non-Condensing Indoor Tankless Liquid Propane Water Heater 7.0 GPM, 160,000 BTUs

Free Shipping

Main Highlights

High-efficiency tankless gas water heater delivers up to 7.0 GPM, perfect for 23 bathroom homes with multiple hot water needs like showers and laundry.
Powered by liquid propane with 160,000 BTUs, this durable tankless unit ensures fast, reliable hot watereven during peak household demand.
Designed for indoor installation, this high-efficiency liquid propane tankless gas water heater features a durable, compact metal cabinet and supports easy wall mounting by a qualified installer.
Hot-start programming prevents cold water bursts, making this liquid propane tankless gas water heater ideal for back-to-back showers.
Rheem RTG tankless gas water heaters offer high-efficiency, space-saving designs with multiple models to fit any home size, fuel type, and hot water demand.

Check Price

Main Highlights

High-efficiency tankless gas water heater delivers up to 7.0 GPM, perfect for 23 bathroom homes with multiple hot water needs like showers and laundry.
Powered by liquid propane with 160,000 BTUs, this durable tankless unit ensures fast, reliable hot watereven during peak household demand.
Designed for indoor installation, this high-efficiency liquid propane tankless gas water heater features a durable, compact metal cabinet and supports easy wall mounting by a qualified installer.
Hot-start programming prevents cold water bursts, making this liquid propane tankless gas water heater ideal for back-to-back showers.
Rheem RTG tankless gas water heaters offer high-efficiency, space-saving designs with multiple models to fit any home size, fuel type, and hot water demand.

8.1

Very Good

Rheem

Rheem Prestige Condensing Tankless Gas Indoor Natural Gas Water Heater With Built-in Recirculation 11.0 GPM - RTGH-RH11DVLN

Free Shipping

Main Highlights

Hot water without the wait - or the waste
Low operating cost - High energy efficiency and water savings setting
Space Savings - Compact, space-saving design. Perfect for a tank replacement.
Water & Gas Leak Detection will shut down unit and provide an error code
Auto-Learn Programming - tracks water usage over a period of time and auto-programs to meet hot water needs at peak times

Check Price

Main Highlights

Hot water without the wait - or the waste
Low operating cost - High energy efficiency and water savings setting
Space Savings - Compact, space-saving design. Perfect for a tank replacement.
Water & Gas Leak Detection will shut down unit and provide an error code
Auto-Learn Programming - tracks water usage over a period of time and auto-programs to meet hot water needs at peak times

Discover top deals and categories on Amazon Check Deals