How to Find and Buy Best 40 Gallon Water Heater 2018 - Buyer’s Guide

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Best 40 Gallon Water Heater
You have to consider such aspects of 40 gallon water heater as its manufacturer, weight, material, price, and many more. Do not forget that manufacturers present new models every year, which makes the process of choosing even more complicated. Fortunately, our top list of the best 40 gallon water heater will help you to save a lot of your time.

Our team used marketplace to choose the very best 40 gallon water heater on the market. This website is the perfect place for online shopping thanks to many users reviews and detailed product descriptions. Every 40 gallon water heater from the list below is available at marketplace.

Top 9 of 40 Gallon Water Heater of 2018

Rating Image Name and Features Details
5.0
Ecosmart Eco 11 Electric Tankless Water Heater 1. Ecosmart Eco 11 Electric Tankless Water Heater (Editor’s Choice)
Never run out of hot water with an ecosmart tankless water heater.
Read reviews
4.5
A.o. Smith Ens-40 Promax Short Electric Water Heater 2. A.o. Smith Ens-40 Promax Short Electric Water Heater
Dynaclean diffuser dip tube helps reduce lime and sediment buildup while maximizing hot water output.
Read reviews
4.3
Rheem Rtex-13 240v Heating Chamber Residential Tankless Water Heater 3. Rheem Rtex-13 240v Heating Chamber Residential Tankless Water Heater
Durable copper immersion two heating elements, field serviceable.
Read reviews
4.0
A.o. Smith Gcr-40 Promax Plus High Efficiency Gas Water Heater 4. A.o. Smith Gcr-40 Promax Plus High Efficiency Gas Water Heater
Self-powered electronic gas valve uses thermopile to generate power needed to operate the electronic gas control without requiring external power.
Read reviews
3.8
Reliance 6-40-eors100 40 Gallon Medium Electric Water Heater 5. Reliance 6-40-eors100 40 Gallon Medium Electric Water Heater
Pex dip tube, glass-lined tank with anode rod protects against corrosion.
Read reviews
3.5
A.o. Smith Gcrl-40 Promax Short Gas Water Heater 6. A.o. Smith Gcrl-40 Promax Short Gas Water Heater (Most Stylish)
Uses a thermopile to generate the power needed to operate the electronic gas control without requiring an external power source.
Read reviews
3.3
Tankless Gas Water Heater 7. Tankless Gas Water Heater
Power vented directly vertically (rooftop) or sideways (wall) via stainless steel cat iii flue 3.5″ diameter included (20″).
Read reviews
3.3
Flextrol Thermal Expansion Tanks 8. Flextrol Thermal Expansion Tanks (Best Transitional Design)
Prevent dangerous pressure build up & protect household appliances and fixtures.
Read reviews
3.0
A.o. Smith Guc-40 Promax Ultra-low Nox Gas Water Heater 9. A.o. Smith Guc-40 Promax Ultra-low Nox Gas Water Heater
Uses a thermopile to generate the power needed to operate the electronics.
Read reviews

 

 

 
№ 1. Ecosmart Eco 11 Electric Tankless Water Heater, 13kw At 240 Volts with Patented Self Modulating Technology
 

Design
5/5
 

Materials
5/5
 

Construction
5/5
 

Value
5/5
 
Overall Brand Model Dimensions Weight Details
5.0
EcoSmart ECO 11 6.5 x 13.5 x 10 inches 7.35 pounds
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Never run out of hot water with an ecosmart tankless water heater. Save up to 12 cubic feet of storage space. Digital temperature control in 1-degree increments gives users complete control of hot water. 11kw at 220 is equal to 13kw at 240 and activation flow is 0.3 gpm. The eco 11 requires a minimum 125 amp electrical panel for installation with 60 amp double pole breaker connected to set of 6 awg wire. Lifetime warranty or residential use. Save up to 60% on your water heating costs with the most advanced, self modulating technology available.

 

 
PROS
11kw at 220 is equal
Never run out
The eco 11 requires a minimum 125 amp electrical panel
Lifetime warranty or residential use
CONS
You will not be able to find a single disadvantage.
 

 

 
 

Design
4/5
 

Materials
5/5
 

Construction
4/5
 

Value
5/5
 
Overall Brand Model Dimensions Weight Details
4.5
A. O. Smith ENS-40 22 x 22 x 50 inches 124 pounds
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Permaglas glass coating protects steel tank from corrosion and maximizes tank life. Coregard anode rode aluminum anode with stainless steel core protects tank against corrosion longer than ordinary steel anodes. Durable, tamper-resistant brass drain valve. Dynaclean diffuser dip tube helps reduce lime and sediment buildup while maximizing 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).

 

 
PROS
Meets all current regulations set forth by
Permaglas glass coating protects steel tank from corrosion
Dynaclean diffuser dip tube helps reduce lime
Coregard anode rode aluminum anode
CONS
May be uncomfortable for tall people.
 

How much money should I spend for a nice 40 gallon water heater?

Price is a very important factor of any 40 gallon water heater. Usually, the higher it costs the better its quality. However, we recommend you to consider all characteristics of a 40 gallon water heater. There are many models with an average price tag that can compete with the most expensive options.

 

 
 

Design
5/5
 

Materials
5/5
 

Construction
2/5
 

Value
5/5
 
Overall Brand Model Dimensions Weight Details
4.3
Rheem RTEX-13 4 x 9 x 13 inches 4 pounds
Check Price

External adjustable digital thermostatic control with led display (+/1 degree accuracy. Threaded for easy replacement, simple installation, digital temperature display. Simple installation 3 foot electric cable and 1/2 npt adapters included; side 1/2 inch compression water connections. External controls to adjust temperature in increments of 1 f. Water-saver shower head 1.5 gpm. Durable copper immersion two heating elements, field serviceable.

 

 
PROS
Simple installation 3 foot electric cable
Durable copper immersion two heating elements
99.8% energy efficient
External adjustable digital thermostatic control
CONS
You will have to find a separate room to store it.
Has an outdated design.
 

How long does the warranty lasts for a decent 40 gallon water heater?

If you do not want to buy a new 40 gallon water heater or spend your money every time it malfunctions, consider a model with a good warranty period. Otherwise, you will have to waste a lot of resources to repair or replace it.

 

 
 

Design
3/5
 

Materials
5/5
 

Construction
4/5
 

Value
4/5
 
Overall Brand Model Dimensions Weight Details
4.0
A. O. Smith GCR-40 22 x 22 x 58.5 inches 165 pounds
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Internal microprocessor provides enhanced operating parameters and tighter differentials for precise sensing and faster heating response. Meets all current regulations set forth by the national appliance energy conservation act (naeca). Dynaclean diffuser dip tube helps reduce lime and sediment buildup, maximizes hot water output; made from long-lasting pex cross-linked polymer. 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.

 

 
PROS
Internal microprocessor provides enhanced operating parameters
Self-powered electronic gas valve uses thermopile
Meets all current regulations set forth by
Dynaclean diffuser dip tube helps reduce lime
CONS
Warranty period is hilariously low.
 

 

 
 

Design
5/5
 

Materials
3/5
 

Construction
5/5
 

Value
2/5
 
Overall Brand Model Dimensions Weight Details
3.8
Reliance 6-40-EORS100 1 x 23.1 x 53.5 inches 109 pounds
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Environmentally-friendly non-cfc foam insulation, water connection size: 3/4. 6-year limited tank & parts warranty.1-year labor warranty, copper sheathed heating elements dual 4500 watt. Factory-installed temperature & pressure (t&p) relief valve, max wattage: 6.000, voltage: 240. Pex dip tube, glass-lined tank with anode rod protects against corrosion. Factory-installed pex polymer lined heat trap nipples, family size: 3.

 

 
PROS
Factory-installed pex polymer lined heat trap nipples
Factory-installed temperature & pressure
6-year limited tank & parts warranty.1-year labor warranty
Environmentally-friendly non-cfc foam insulation
Pex dip tube
CONS
You can find much cheaper products with the same functionality.
 

 

 
 

Design
2/5
 

Materials
2/5
 

Construction
5/5
 

Value
5/5
 
Overall Brand Model Dimensions Weight Details
3.5
A. O. Smith GCRL-40 22 x 22 x 47.8 inches 162 pounds
Check Price

Push-button piezo igniter makes lighting pilot fast and easy with one-hand push-button spark ignition. Dynaclean diffuser dip tube helps reduce lime and sediment buildup, maximizes hot water output; made from long-lasting pex cross-linked polymer. Internal microprocessor provides enhanced operating parameters and tighter differentials for precise sensing and faster heating response. Electronic gas control incorporates an led status indicator that monitors system operation and service diagnostics. Uses a thermopile to generate the power needed to operate the electronic gas control without requiring an external power source.

 

 
PROS
Push-button piezo igniter makes lighting pilot fast
Electronic gas control incorporates an led status indicator
Dynaclean diffuser dip tube helps reduce lime
Internal microprocessor provides enhanced operating parameters
Uses a thermopile
CONS
Warranty period is hilariously low.
 

 

 
№ 7. Tankless Gas Water Heater Excel Pro Propane Lpg Gas 6.6 Gpm Whole House and for Hydronic Heating Compare to Rinnai, Rheem, Noritz, Bosch Free Flue Kit
 

Design
3/5
 

Materials
4/5
 

Construction
4/5
 

Value
2/5
 
Overall Brand Model Dimensions Weight Details
3.3
gasFlex 14.5 x 5.5 x 23 inches 69 pounds
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Power vented directly vertically (rooftop) or sideways (wall) via stainless steel cat iii flue 3.5″ diameter included (20″). Modulates heat output in response to the flow rate of water running through the unit. Certified for installation in manufactured (mobile) homes pure copper heat exchanger. Delivers 6.6 gpm of hot water with a 35 f instant temperature rise. Propane gas – up to 140.000 powerful btu’s of heating power.

 

 
PROS
Delivers 6.6 gpm
Propane gas
Power vented directly vertically
Modulates heat output in response
CONS
It is rather costly.
 

 

 
№ 8. Flextrol Thermal Expansion Tanks, for Hot Water Heaters 2.1 Gallons, Carbon Steel Shell, Stainless Steel 3 4 Inch Mip Connection, Butyl Diaphragm, 150 Psi, 210 Degrees Fahrenheit, Almond Color
 

Design
2/5
 

Materials
4/5
 

Construction
3/5
 

Value
4/5
 
Overall Brand Model Dimensions Weight Details
3.3
Flextrol FTT5 13 x 9 x 9 inches 5.3 pounds
Check Price

Prevent dangerous pressure build up & protect household appliances and fixtures. Thermal expansion tanks are used to prevent plumbing system and/or water heater damage and unnecessary relief valve discharge caused by excessive pressure from thermal expansion. External baked epoxy-polyester coating provides a durable appliance finish; exclusive polypropylene liner eliminates internal corrosion. Mig welding eliminates interior rough spots and sharp edges; high grade steel construction; made in italy; all tanks are nsf61 certified. Protect safety valves from failing; save energy and water.

 

 
PROS
Mig welding eliminates interior rough spots
Protect safety valves from failing
Thermal expansion tanks are used
CONS
Has an outdated design.
 

 

 
 

Design
2/5
 

Materials
5/5
 

Construction
3/5
 

Value
2/5
 
Overall Brand Model Dimensions Weight Details
3.0
A. O. Smith GUC-40 18 x 18 x 62 inches 140 pounds
Check Price

Equipped with a flame arrestor that provides smooth ignition and ensures that flammable vapors are safely combusted inside the sealed chamber. Uses a thermopile to generate the power needed to operate the electronics. Electronic gas control incorporates an led status indicator that monitors system operation and service diagnostics. Dynaclean ii diffuser dip tube helps reduce lime and sediment buildup, maximizes hot water output; made from long-lasting pex cross-linked polymer. Internal microprocessor provides enhanced operating parameters and tighter differentials for precise sensing and faster heating response.

 

 
PROS
Dynaclean ii diffuser dip tube helps reduce lime
Uses a thermopile
Electronic gas control incorporates an led status indicator
Internal microprocessor provides enhanced operating parameters
CONS
Requires delicate care.
 

Is Amazone.com a good place to buy a 40 gallon water heater?

Nowadays, online shopping is completely safe. In fact, it might even be safer than regular shopping, since you do not have to leave your home to buy products you need. There is nothing dangerous in buying 40 gallon water heater. After all, you can always get a refund if you will not like the model you bought or you received it in a malfunctioning condition.

Are there any reasons to buy 40 gallon water heaterwith a lifetime warranty?

Every manufacturer offer various warranty terms. Some companies sell 40 gallon water heaterwith a lifetime warranty, while the others only offer one-year or two-year protection. The cheapest models usually do not have any warranties at all. We think that five-year warranty is more than enough for the most 40 gallon water heater.

How did you make the list of the best 40 gallon water heater?

We considered so many factors that it is nearly impossible to tell you about all of them. Believe us, we did not forget about anything. Price, material, user score, and other characteristics of 40 gallon water heaterwere used to create this TOP list. We tried our best to help you choose the best 40 gallon water heater!

What is the defining factor when choosing a 40 gallon water heater?

As you might have guessed, the weight of a 40 gallon water heater is one of the main factor to consider. Another important aspects is its material. If the 40 gallon water heater is assembled well, it will serve you for many years.

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