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10 Best 40 Gal Gas Water Heater Reviews

If you’re in the market for a 40 Gal Gas Water Heater, you have a few different options to choose from. We’ll discuss the types currently available in the market, the pros and cons of each, and our top pick for the Best 40 Gal Gas Water Heater.

40 Gal Gas Water Heater – Best Sellers

Best 40 Gal Gas Water Heater – Top Picks

I have already minimized your options from hundreds to only 10 40 Gal Gas Water Heater and here you go with a quick comparison chart which should leave no confusion.

Natural Gas Tankless Water Heater, FOGATTI Indoor 7.5 GPM, 170,000 BTU White Instant Hot Water Heater, InstaGas Comfort 170 Series
  • We recommend that all installations of units must be done by the local building and plumbing codes of the installation location and installation be done by a licensed professional.
  • The tankless design means you don't have to wait 30 minutes for preheating and unlimited use of hot water.
  • 170,000 BTU high heating capacity and maximum 7.5 GPM. It is suitable for 3-4 outlet points, which can satisfy whole family. UEF over 0.81, the high energy conversion rate can effectively reduce energy loss.
  • Excellent quality CSA certified in the United States and Canada. Adopting the world's most advanced technology, superior safety and durability.
  • Using built in forced exhaust fan at the bottom ensures stable combustion and eliminates the influence of external wind. Compact design for easy installation.
  • FOGATTI provides free replacement within 30 days, and 5 years warranty on the heat exchanger and 2 years warranty on other parts. The above-mentioned labor costs are extra from 31 days.
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
Natural Gas Water Heater Parts Pilot Assembly and Thermocouple
  • Natural Gas Water Heater Parts Pilot Assembly and Thermocouple
  • Standard 24" Length
  • Fits Many Water Heaters On The Market
Tankless Water Heater Natural Gas, Camplux High Efficiency Natural Gas Tankless Water Heater with Fahrenheit Digital Display, 3.18 GPM On Demand Water Heater for 2-3 Persons Bathroom Indoor Use,White
  • 3.18 GPM Instant Constant Water Heater -Camplux 3.18 GPM tankless water heater natural gas delivers 3.18 gallons per minute of on-demand endless hot water ensures constant comfortable instant hot water for 2-3 persons whole house. 3.18-GPM heater is activated by water flow rather than water pressure; Minimum activation water capacity rate: 0.65 GPM-4.8 GPM; Maximum input rating: 82,000 BTUs; Water connection location/size: Bottom/0.5-inch NPT.
  • Convenient, Easy Installation -The tankless water heater uses standard 1/2" BSP water fitting and gas inlet. The water heater comes with1/2 " BSP female to 1/2" NPT male gas connector adapter then you want hook this water heater to natural gas pipe directly.It also comes with 2.3" horizontal vent pipe,ensures efficient power ventilation. You can take Camplux customized wall thimble-WT236 for perfect indoor use.
  • Modern Design,Easy Operation -Trendy and modern design with unique white glassy front panel,easy to control the water temperature with LED touchscreen (Fahrenheit and Celsius switch optional).The compact size on demand water heater saves more space than traditional tanks.
  • Outstanding Features- The Camplux tankless gas water heater comes with oxgen-free copper heat exchanger and v-type stainless steel burner,high heating efficiency up to 89.98 %; 90°wind isolation design, this tankless natural gas water heater can anti backflow wind in high floors, the S/S 2.36 ” vent pipe exhaust harmful gases quickly.
  • 6-In-1 Protection Ensure Your Safety- Dry combustion,flame failure device, anti-freezing protection, over heating protection to ensure your safety. Fully automatic temperature controls with an energy saving mode and child lock technology.
  • Note- The standby electric power of is 2W, working electric power is 42W. Natural gas input pressure is 0.25 psi. There is a pressure relief valve at the water inlet of water heater. It is necessary to manually unscrew the pressure relief valve to drain the water inside the machine in time after using the machine to avoid freezing and blew up when the temperature is lower than 32 ° F in winter.
Bosch Thermotechnology 40-Gallon Tall Electric Storage Water Heater, Gray
  • APPLICATION: Dimensions : 18.25" W x 61.60" H x 18.25" L. Perfect size for a maintenance closet, access closet under the stairs, crawl space. Ideal for replacement projects.
  • DURABILITY: Two magnesium anode rods for extra tank protection. Dielectric heat trap. Heavy gauges steel tank for extra years of trouble-free service. Glass-lined steel tank to help prevent corrosion.
  • WARRANTY: 10-year tank and parts limited warranty
  • EFFICIENCY: HFO foam insulated, reducing fuel costs and increasing energy efficiency. Double heating elements conserve energy. Incoloy elements for a long-lasting unit
  • CONVENIENCE: Factory-installed electric hot and cold water connections for extended tank life. Easy-to-use plastic drain valve for maintenance. Factory-installed heat traps reduce heat loss. Temperature and pressure relief valve included. Fully-automatic surface mount thermostats
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
EcoSmart ECO 11 Electric Tankless Water Heater, 13KW at 240 Volts with Patented Self Modulating Technology
  • Endless On-Demand Hot Water; Consistent hot water when you need it that never runs out; Continuously monitored water temperature and controlled flow rates ensure efficiency and consistent performance within 1 degree of selected temperature
  • Save Space; EcoSmart tankless electric water heaters are 90% smaller than traditional tank heaters; may be installed on wall or at point of use; Dimensions 11.5 x 8 x 3.75 inches
  • Save Energy; EcoSmart tankless electric water heaters are 99% thermal energy efficient; Only heats water when called unlike a tank heater that maintains water temperature even when not being used.
  • EcoSmart ECO 11 Sizing; 13-kilowatt tankless electric water heater ideal for providing hot water for a bathroom, small sink, office breakroom and other point-of-use or low-flow applications; provides between 1.3 and 3.1 gallons-per-minute depending on the inlet water temperature; refer to the sizing guide to select the proper solution
9003542 Water Heater Pilot Assembly NAT Gas Burner Assembly Replace 100109295 9003542005 18324190 9003530 Compatible with A.O Smith Kenmore State GS GSX Natural Gas Water Heater 
  • 【Solve the problems】The 9003542 Water Heater Natural Gas Pilot Assembly solve these problems: water heater pilot light is always off, water heater not heating due to the thermocouple damaged, gas pilot assembly cannot work properly due to some other factors, intermittent heating, ignition not normal, Ignition heating efficiency is low etc.
  • 【Replace】 The Natural Gas Pilot Assembly replace 9003542, 183824-190, 9003530, 9003542005, 100109295, AP4867015 pilot assembly, Compatible with A.O.Smith FCV, GCV, GVR, XCV and XVR serials, compatible with Kenmore 153 series and State GS&GSX water heaters.
  • 【Fit】The 9003542 water heater pilot assembly Compatible with Kenmore: 53333345 153333315HA, 153333316HA,153333415HA, 153333416HA, 153336565, 153333345, 153339680 , 153339260 , 153339261, 153339761, 153333346, 153333347, 153333445, 153333446, 153333447, 153333547, 153333850, 153333950, 153336162, 153336262, 153336300HA, 153336301HA, 153336320, 153339320, 153336360, 153336361, 153336362, 153336500HA, 153336501HA, 153336560, 153339210HA, 153339211HA, 153339360 , 153339361, 153339362, 153339411HA, 153339420, 153339461, 153339262, 153339462, 153339512HA, 153339520, 153339561, 153339562, 153339620, 153339640, 153339762 etc.
  • 【Fit】The Pilot assembly 9003542 Compatible with A. O. Smith : FCV40, FCV50, GCV30, GCV40, GCV50, GCVH30, GCVT40, GCVT40Q, GVR40, XCV30, XCV40, XCV50, XCVH30, XCVL40, XCVT40, XCVT40L, XCVT40Q , GCVT40L, XVR40 etc. The 9003542 Nat gas pilot assembly compatible with Reliance 6-30-yours, 6-30-yours-d, 6-30-yort-d, 6-40-yort-d, 6-30-yort4, 6-50-yort4 etc.
  • 【Fit】The 9003542 Nat Gas Pilot Compatible with State GS&GSX: GS665HRRT100, GS665YRRT100, GS665YRRT101, GSX65HRRT100, GSX65YRRT100, GS6B5YRRT100, G9665YRRT101, GS640YBRT , GS640YBRS, GS640XBRT, GS640HBRT etc.
  • 【Save time and money】Compared to finding a plumber to replace the Natural Gas Pilot Assembly water heater replacement parts, or to replace a new water heater, you buy 9003542 Nat Gas Pilot Assembly for only a few dozen dollars, and the replacement only takes a few minutes, saving you time and money, and you can enjoy the fun of D-I-Y , add to cart now!
  • 【Easy to install】First power off the water heater and shutting gas off, Second find a You-T-B video to install the 9003542 water heater pilot assembly or find professional helps if necessary, check gas leaks with soapy water for your safety after installation.
A.O. Smith ENS-40 ProMax Short Electric Water Heater, 40 gal
  • Permaglas glass coating protects steel tank from corrosion and maximizes tank life
  • Dynaclean diffuser dip tube helps reduce lime and sediment buildup while maximizing hot water output; made from long-lasting PEX cross-linked polymer
  • CoreGard anode rode aluminum anode with stainless steel core protects tank against corrosion longer than ordinary steel anodes
  • Durable, tamper-resistant brass drain valve
  • Meets all current regulations set forth by the National Appliance Energy Conservation Act (NAECA)
110-326 Gas Water Heater Valve,Natural Gas Water Heater Thermostat with 1-3/8" Shank,3-1/2" W.C.
  • QUALITY AFTER-SALES -- We provide an one year warranty for 110-326 Gas Water Heater Thermostat Valve.For whatever reason, you are not satisfied, you can request a replacement or a full refund.If you need any help, email us and we’ll reply within 12 hours! Just buy it!
  • APPLICATION --110-326 all models have a built-in non-circulating energy cut-off (ECO) system, which shuts off all gas in the water heater when the water temperature is too high.
  • INTRODUCE --110-326 Gas Water Heater Valve Thermostat Inverted Flare Pressure Regulation3.5" WC,Outlet Size1/2" ,Inlet Size1/2" .
  • FUNCTION --110-326 series natural gas water heating thermostat is generally used for replacement applications in water tanks.
  • SPECIFICATION --110-326 gas Water Heater Valve Thermostat Shank Length1-3/8" Sensing Tube 5-1/2" , Pipe Flow Setting 45,000 Temperature160F (71C) .

What to Consider Before Buying 40 Gal Gas Water Heater

Even deciding on an insignificant purchase can make you feel like choosing between the red pill or the blue one. But is the headache really worth it? Online shopping was meant to make our experience simpler, easier and enjoyable. But in reality it is quite easy to get confused on the decision which one to buy?.

This is where our efforts come in! This list of 40 gal gas water heater will surely save you valuable time and effort. However another question remains, what makes our compilation the best? Or on what basis you should trust this 40 gal gas water heater list.

Is it virtually possible to know every detail of a product for making a perfect purchase? The answer is definitely NO, it’s not! Then how do you make the correct decision while buying 40 gal gas water heater? Well, the complexity of selecting a single product from a sea of them can be simplified taking into consideration a few key metrics regarding the product.

We feed thousands of data to our AI regarding these products through advanced algorithms. Based on the relevant data i.e. brand, features, specs, ratings and reviews and many others (which are discussed below) a list of best 40 gal gas water heater has been prepared by the AI.

Brand Reputation:

Branded products might seem pricey but the point is they are charging those extra bucks for reliability. Unlike many other things, trust doesn’t come cheap. 8 out of 10 times you can trust a branded one.

Unique Features:

Enough and useful features make a product purchase worthy. This is the basic criteria to be followed.

Useful Specifications:

Matching the right specs according to your need is very important and we miss no important things.

Star Ratings:

Healthy ratings indicate a good product. Highest rated products rarely disappoint users. So, we pick the best rated units on our list.

Number of Reviews:

Higher number of reviews in the shortest period of time shows the product is accepted widely by a lot of customers. Customer feedback aka customer reviews are the most insightful source of judging a product’s merit. We take serious consideration into customer reviews and total numbers while choosing them.

Ratio of Positive Reviews Against Bad:

The final rating is an average of all ratings provided by users. But we can get a deeper look at the product’s performance if we analyze the ratings on each star level.

Ranking of the Seller:

Shows the reputation of the seller. Even if you choose the correct item, a bad seller can be a big hassle. So stare clear of them.

Product Ranking in Relevant Category:

These small little details are never left out of our consideration. This is what makes our selection even more confident and authentic.

Bang for the Buck:

Spending a fortune on 40 gal gas water heater is not a wise thing to do. Our every selected item should provide you the best value for the money you spent.

Selling Growth Over the Product Lifetime:

A product might have thousands of reviews and good ratings, still can be a bad choice. Once hyped products can be an outdated choice now. So, a gradual positive growth of any product indicates its reliability.

Latest Models:

Every product is perfected with every new edition. Those little improvements, upgrades and adjustments come real handy in user experience. So, we keep in mind to choose the latest ones.

Product Availability:

Unavailable product is like a dead lion. Discontinued items are surely not recommended.

Rating By Features:

There is a special segment in amazon where the product is rated according to different relevant features. This one is mostly overlooked by everyone. But we keep a keen eye on this!

Overall Versatility:

A product needs to be versatile and user friendly. Our aim is to prepare a list of best 40 gal gas water heater which will serve you in a wide range.

Amazon’s Preference:

Amazon’s choice can be a factor to consider. It creates a sense of reliability among customers. We value amazon’s choice and prepare all lists keeping this fact in mind.

Conclusion

After reading through all of the reviews and features of the different 40 gal gas water heater, it is clear that there are a lot of great options to choose from. However, the best option for each person will vary depending on their individual needs and preferences. But here, the products we have listed above, have great features and are highly rated by customers. If you are looking for the Best 40 Gal Gas Water Heater, then any of these 10 would be a great choice for you.

Last update on 2023-03-28 at 02:24 / Affiliate links / Images from Amazon Product Advertising API

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