Best 40 gallon gas water heater on the market

“As an Amazon Associate I earn from qualifying purchases.”

With my best 40 gallon gas water heater guide and product reviews, I’ll help you make a more better decision and get a product with the benefits you need. It’s important to do your prior research, so read my reviews and comparisons to decide which model you need.

Here is the list Top 40 gallon gas water heater on the market.

Quick view: best 40 gallon gas water heater list

Best 40 gallon gas water heater review :

A.O. Smith GCR-40 ProMax Plus High Efficiency Gas Water Heater, 40 gal

 in stock
2 new from $436.72
Check Product >>
Amazon.com
as of August 23, 2020 4:11 pm

Features

  • Blue Diamond glass coating provides superior corrosion resistance to industry-standard glass lining
  • Self-powered electronic gas valve uses thermopile to generate power needed to operate the electronic gas control without requiring external power
  • Internal microprocessor provides enhanced operating parameters and tighter differentials for precise sensing and faster heating response
  • Dynaclean diffuser dip tube helps reduce lime and sediment buildup, maximizes hot water output; made from long-lasting PEX cross-linked polymer
  • Meets all current regulations set forth by the National Appliance Energy Conservation Act (NAECA)

Bradford White 40 Gallon Natural Gas Water Heater #RG240T6N

 in stock
1 new from $800.00
Check Product >>
Amazon.com
as of August 23, 2020 4:11 pm

Features

  • Bradford White ICON System
  • Advanced ScreenLok Technology Flame Arrestor Design
  • Resettable Thermal Switch
  • Maintenance-Fre
  • Factory-Installed Hydrojet Total Performance System

Rheem 240V 2 Heating Chambers RTEX-18 Residential Tankless Water Heater, small, GREY

 in stock
5 new from $374.99
1 used from $350.00
Check Product >>
Amazon.com
as of August 23, 2020 4:11 pm

Features

  • External digital thermostatic control with LED display (+/1 degree accuracy)
  • Most advanced self-modulation, adjust power to meet hot water demand
  • Durable Copper immersion two heating elements, field Serviceable. Flow Rate- up to 4.4 GPM
  • Simple installation – bottom 3/4 inch NPT water connections
  • Threaded for easy replacement, simple installation, digital temperature display

Rinnai V65IN Tankless Water Heater, Large, V65iN-Natural Gas/6.5 GPM

 in stock
7 new from $680.40
1 used from $471.50
Free shipping
Check Product >>
Amazon.com
as of August 23, 2020 4:11 pm

Features

  • V65iN HE High Efficiency Tankless Hot Water Heater - Natural Gas: Indoor Installation Only
  • Up to 6.5 GPM hot water flow rate (varies by groundwater temp)
  • Control-R 2.0 mobile app features timers and schedules throughout the day and allows you to remotely put the system into vacation mode.
  • Endless hot water for your entire home
  • Residential Factory Warranty - 120 months (heat exchanger), 12 months (labor), 60 months (parts)

A.O. Smith GCG-50 ProMax Tall Gas Water Heater, 50 gal

 in stock
1 new from $770.59
Check Product >>
Amazon.com
as of August 23, 2020 4:11 pm

Features

  • Blue Diamond glass coating provides superior corrosion resistance to industry-standard glass lining
  • Self-powered electronic gas valve uses thermopile to generate power needed to operate the electronic gas control without requiring external power
  • Internal microprocessor provides enhanced operating parameters and tighter differentials for precise sensing and faster heating response
  • Dynaclean diffuser dip tube helps reduce lime and sediment buildup, maximizes hot water output; made from long-lasting PEX cross-linked polymer
  • Meets all current regulations set forth by the National Appliance Energy Conservation Act (NAECA)

Excel Pro Tankless Gas Water Heater NATURAL GAS 6.6 GPM Whole House and for Hydronic heating Compare to Rinnai, Rheem,Noritz, Bosch FREE FLUE KIT

 in stock
1 new from $499.00
Check Product >>
Amazon.com
as of August 23, 2020 4:11 pm

Features

  • Modulates heat output in response to the flow rate of water running through the unit.
  • Power vented directly vertically (rooftop) or sideways (wall) via Stainless Steel CAT III Flue 3.5" Diameter Included (20")
  • NATURAL GAS - European Model - Digital Display is in Celsius
  • Delivers 6.6 gpm of hot water with a 35°F Instant Temperature Rise (Equivalent to 5.5gpm with a 45F temp Rise)
  • Certified for Installation in Manufactured (Mobile) Homes Pure Copper Heat Exchanger

Eccotemp i12-NG Tankless Water Heater

 in stock
11 new from $367.00
Check Product >>
Amazon.com
as of August 23, 2020 4:11 pm

Features

  • Whole home indoor, gas powered tankless water heater, rated at 3 GPM that activates only on demand and no pilot light needed, reducing energy consumption
  • Sleek, modern design with black tempered glass front panel featuring an easy to use LED display controls
  • Features fully automatic temperature controls with an energy saving mode and child lock technology
  • Safe electronic ignition system; Plugs into standard 110v electrical outlet with UL-listed cord. Field tested to 5500 ft. elevation (not recommended to be used any higher)
  • Uses standard 1/2" NPT water fittings and comes with horizontal venting allowing for a convenient and quick installation

A.O. Smith GCR-40LP ProMax Plus High Efficiency Liquid Petroleum Gas Water Heater, 40 gal

 in stock
1 new from $753.29
Check Product >>
Amazon.com
as of August 23, 2020 4:11 pm

Features

  • Blue Diamond glass coating provides superior corrosion resistance to industry-standard glass lining
  • Self-powered electronic gas valve uses thermopile to generate power needed to operate the electronic gas control without requiring external power
  • Internal microprocessor provides enhanced operating parameters and tighter differentials for precise sensing and faster heating response
  • Dynaclean diffuser dip tube helps reduce lime and sediment buildup, maximizes hot water output; made from long-lasting PEX cross-linked polymer
  • Meets all current regulations set forth by the National Appliance Energy Conservation Act (NAECA)

Noritz EZTR40NG 40 gal Tank Replacement Indoor Tankless Water Heater 6.6 GPM (Standard Vent) - Natural Gas

 in stock
5 new from $1,130.80
Free shipping
Check Product >>
Amazon.com
as of August 23, 2020 4:11 pm

Features

  • Endless hot water
  • Direct replacement for existing 40 gal tank water heater
  • High Efficiency
  • Low Nox

Rheem PROG50-42N RH67 PV Professional Classic Residential 42K BTU Power Vent Natural Gas Water Heater, 50-Gallon

 in stock
3 new from $1,311.10
Check Product >>
Amazon.com
as of August 23, 2020 4:11 pm

Features

  • Uses indoor air for combustion; blower exhausts the flue gases
  • Exclusive air/fuel shut-off device. Maintenance free - no filter to clean
  • Long venting lengths up to 100 equivalent feet
  • Rheum exclusive R-Tech (registered) anode rod provides long-lasting tank protection

Buying guide: best 40 gallon gas water heater

Before you buy a 40 gallon gas water heater , you should clarify your doubts in advance. Get help from other users’ opinions. Are there other things to consider besides the details described? Is the color correct, as you saw in the picture of the online shop? What is the actual content? Does the product still work after being exposed to water?

These are all questions that you as a consumer will surely ask. The manufacturers certainly want to achieve high sales with their products. The better known the brand is, the better the products are. Of course, there are also small and unknown brands that offer high quality products.

Therefore, pay attention to additional purchasing criteria. After all, it’s obvious that price is a deciding factor. If the price is not proportional to the quality, I recommend that you buy another product.

Conclusion

With the best 40 gallon gas water heater guide above. I hope you find the best product easier. Thanks for taking the time to read my article