With so many Best 40 Gallon Natural Gas Water Heater brands on the market – from big names like Bradford White,Reliance,AO Smith,Eccotemp,MIZUDO,forimo to smaller companies – finding the right product can be a real challenge. But we’re here to make your search easier.
We carefully researched and tested a vast range of Best 40 Gallon Natural Gas Water Heater to help you discover the top contenders that match different needs and preferences. Altogether, we spent over 100 hours evaluating numerous products first-hand.
Our #1 best Best 40 Gallon Natural Gas Water Heater is Bradford White Best 40 Gallon Natural Gas Water Heater, based on its stellar performance across all our tests. Below you’ll find more of our top-rated recommendations for great Best 40 Gallon Natural Gas Water Heater options currently available. Make sure to check out our buying guide too – it’s full of expert advice for choosing a Best 40 Gallon Natural Gas Water Heater tailored to exactly what you’re looking for. With our help guiding your decision, finding your perfect fit will be a breeze!
Budget Pick
Rheem Prestige High Efficiency 9.5GPM Indoor Natural Gas Tankless Water Heater
Top 10 Best 40 Gallon Natural Gas Water Heater
We researched and compared the top products in the Best 40 Gallon Natural Gas Water Heater category to provide you with these recommendations.
1. Bradford White 40 Gallon Natural Gas Water Heater #RG240T6N
- Bradford White ICON System
- Advanced ScreenLok Technology Flame Arrestor Design
- Resettable Thermal Switch
- Maintenance-Fre
- Factory-Installed Hydrojet Total Performance System
2. Reliance 6-40-NOCT 400 35500 BTU Tall Natural Gas Water Heater, 40 gallon
- Pex polymer lined heat trap nipples
- Aluminum anode rod
- For installations up to 10
3. AO Smith 40 Gallon 40,000 BTU Water Heater
- 40 gallon tank
- 40,000 BTU
- GCR-40 standard vent
- 6 year limited tank warranty
4. Eccotemp FVI12-LP Liquid Propane Gas Tankless Water Heaters, White
- Whole home indoor,gas powered tankless water heater, rated at 3.6 GPM that activates only when in use, making it an energy saver.
- For indoor installation with safe, efficient power ventilation and perfect for any small home, cabin or apartment.
- Easy to read digital temperature display, on a compact and space-saving design with minimal noise output.
- Safe electronic ignition system; plugs into standard 120v electrical outlet with UL-listed cord.
- Uses standard 1/2" NPT water fittings and is equipped with easy to use manual water temperature controls.Minimum 0.65 GPM flow rate
5. Mizudo Natural Gas Tankless Water Heater 3.6 GPM, 80,000 BTU Indoor Installation Instant Hot Water
- Instant Hot Water HeaterTankless water heaters can provide endless hot water on demand for 2- 3 water points.
- Comfortable Bathing Experience3.6 GPM hot water flow, precise temperature control, no water temperature sandwich.
- Premium design and DurableAdopt oxygen-free copper water tank, reduce heat loss, high efficiency and durability.
- Compact DesignSave over 50% of available space compared to tank water heater.
- Quality ServiceIf you encounter product quality problems, you can contact us by phone, email and message, and we will provide service according to the warranty policy.
6. Tankless Water Heater Natural Gas,Instant Hot Gas Water Heater,Indoor 3.18 GPM,Constant Natural
- Tankless Water Heater-Natural Gas water heater tankless Steady Steady Temperature Control with more safety protection such as flame failure device,anti-freezing protection,over heating protection,Just need 3.6PSI of water pressure,3.18gallons of hot water can be output per minute.The maximum temperature raise is 149F,Applicable only Natural GasLNG)
- Efficient & Energey Saving-The 3.18 GPM Instant Natural Gas Water Heateron-demand hot water for 2-3 points simultaneous water supply for bathroom,kitchen hot water demandNatural Gas Water Heater exchanger and main burner are desinged with advanced combustion technology to decrease gas consumption and burning noise.
- Quality Material-This of ours Water Heater Crafted from stainless steel, our water heater exhibits high temperature resistance and corrosion resistance. It also features a built-in oxygen-free copper water tank, ensuring a prolonged service life.with Fahrenheit Digital Display smart digital LED display featuring a large high-definition screen, effortlessly adjust the temperature between 86F-149F according to your preferences.
- Easy Assemble and Use-Applied with standard 1/2" NPT water fitting and gas inlet, comes with 2.5" horizontal vent pipe for quick installation.Note: For normal operation, this product must be installed with proper ventilation and a smoke exhaust pipe.
- Widely Application -Constant Water Heater It is only 1/6 the size of a 50 gallon tank water heater,for both bathroom and kitchen hot water demand. great for home,small cabins and remote apartments indoor installation. without the need to install an expansion tank,Note: In cold weather, if the water heater is not used for a long time, it is necessary to open the pressure relief valve to drain the residual water in the water heater.
7. TCFUNDY 16L Tankless Water Heater Natural Gas, 4.23 GPM On-Demand Instant Hot Water Heater, Indoor
- 16L Tankless Water HeaterTCFUNDY Tankless water heater with compact design saves more space and energy efficient than traditional water heaters. LCE screen with digital temperature display and touch screen control. There are 3 modes you can choose: eco mode, common mode, tub mode.
- On-Demand Instant Water HeaterHigh efficiency natural Gas tankless water heater delivers 4.23 gallons per minute of on-demand endless hot water. No more waiting for long time, instant hot water for families, homes, cabins or apartments.
- Thermostatic & Energy SavingWater heater built-in high-precision thermostat ensures constant temperature, high-thermal efficiency up to 90%. The self-modulating temperature technology only heat up water while you are using it to save energy.
- Safety of UsePremium Oxygen-Free Copper Heat Exchanger to ensure long lifespan, automatic power-off when water is off and over-temperature protection, flame-out protection, anti-freezing protection(manual drainage needed via water relief valve), air flow pressure switch protection to ensure the safety.
- Easy InstallationComes with 18.9x2.36" horizontal vent pipe to ensure efficient power ventilation, with showerhead. Minimum activation rate: 0.66 GPM. Min. water pressure: 2.9 PSI, low water pressure to start, users of higher floors can enjoy pleasant experience of shower.
8. Rheem Prestige High Efficiency 9.5GPM Indoor Natural Gas Tankless Water Heater
- 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
- For use indoor only
9. Tankless Water Heater, 3.17 GPM Instant Hot Natural Gas Water Heater with Constant Temperature,
- Note: Please download and read the installation manual and product manual carefully when purchasing the product to ensure that your installation environment is consistent with this product. When installing, please strictly follow the installation manual and installation instruction video, otherwise it may not work. If you have any questions about the product, please contact us by email. We have a professional technical support team.
- Tankless Instant Hot Water HeaterNo need to preheat before using the tankless water heater. As soon as you turn on the tap, the water ows with your desired temperature.
- High Sensitive Touch Led DisplayComes with smart digital LED display high-definition large screen, freely adjustable the temperature between 30-65.
- Multiple Security ProtectionThe natural gas water heater is upgraded with 12 protection methods to ensure your safety. Such as dry burning protection, over 65(149 F) protection, leakage protection, etc.Note: In cold weather, if the water heater is not used for a long time, it is necessary to open the pressure relief valve to drain the residual water in the water heater to prevent the exchanger or water pipe from freezing and swelling.
- Energy and Money SavingThe hot water heater adjusts power input based on flow rate and temp setting in real time. Summer/winter 2 modes to save up to 60% on your natural gas costs.
- Quality MaterialMade with brushed stainless steel material, the natural gas water heater has the function of high temperature resistance, corrosion resistance. Built-in oxygen-free copper water tank, long service time.Note: This product must be installed with a ventilation and smoke exhaust pipe for normal use.
- NOTE: This product does not have a serial number. If you don't know how to install a water heater at all, it is recommended not to buy it.
10. Tankless Water Heater Natural Gas,4.74GPM 18L Indoor,Instant Hot Gas Water Heater,Constant Natural
- Tankless Water Heater- Natural Gas water heater tankless Steady Steady Temperature Control with more safety protection such as flame failure device,anti-freezing protection,over heating protection,Just need 3.6PSI of water pressure,4.74gallons of hot water can be output per minute.The maximum temperature raise is 167F,Applicable only Natural GasLNG)
- Efficient & Energey Saving-The 4.74 GPM Instant Natural Gas Water Heater ,Maximum power output 68000btu/hour,on-demand hot water for 2-3 points simultaneous water supply for bathroom,kitchen hot water demandNatural Gas Water Heater exchanger and main burner are desinged with advanced combustion technology to decrease gas consumption and burning noise.
- Quality Material-This of ours Water Heater Crafted from stainless steel, our Propane water heater exhibits high temperature resistance and corrosion resistance. It also features a built-in oxygen-free copper water tank, reduce heat loss ensuring a prolonged service life.with with LED smartdigital display effortlessly adjust the temperature between 86F-167F according to your preferences.
- Easy Assemble and Use-Applied with standard 1/2" NPT water fitting and gas inlet, comes with 2.5" horizontal vent pipe for quick installation.Note: For normal operation, this product must be installed with proper ventilation and a smoke exhaust pipe.
- Widely Application -Save over 50% of available space compared to tank water heater.for both bathroom and kitchen hot water demand. great for home,small cabins and remote apartments indoor installation. without the need to install an expansion tank,Note: In cold weather, if the water heater is not used for a long time, it is necessary to open the pressure relief valve to drain the residual water in the water heater.
Peter
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