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10 Best 40 Gallon Hot Water Heaters
Last Updated November 2019
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1
Best of the Best!
REFLECTIVE FOIL
HOT WATER HEATER JACKET DIY 'PREMIUM' KIT: ENERGY SAVING REFLECTIVE FOIL FITS 50
9.9
Superb!
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$31.88
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$49.35
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Average consumer payback is 6-12 months. improves the energy efficiency of your home.
Diy complete kit comes with: foil body (72" height x 76" circumference),foil spacers, foil tape. step-by-step instructions. lightweight,clean,easy to install. suitable for both electric & gas hot water heater tanks. also available in our 40 gallon diy kit.
Patented reflective foil stops 97% of radiant heat loss.original manufacturer of this kit for 27 years.
Complete kit is 'fire rated' class 1/class a: no 'foam' spacers (fire hazard),no fiberglass, non-toxic,no carcinogenics,no fibers, 'class 1/class a' fire rating
Exclusively sold by jr global sales 'only'. any other sellers advertising this same product here are sending another 'totally' different product that may not be 'tested' or 'fire rated' for safety. please be aware.
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2
American Water Heater
American Water Heater Company Gas Enhancement Kit 4040T NG
9.3
Superb!
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For 40 gallon 40,000 btu tall natural gas models
Whirlpool fg model enhancement door kit
Model# 6911120
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3
Best Value
REFLECTIVE FOIL
HOT WATER HEATER JACKET DIY 'PREMIUM' KIT :ENERGY SAVING REFLECTIVE FOIL FITS 40
9.2
Superb!
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Average consumer payback is 6-12 months. improves the energy efficiency of your home.
Do-it-yourself complete kit comes with: foil body(48" height x 76" circumference),foil spacers, foil tape. easy to follow instructions.comes complete with all material and step-by-step instructions. tools required,tape measure,utility knife/scissors and straight edge.lightweight,clean,easy to install.also available in our 50-60 gallon diy kit.
Patented reflective foil stops 97% of radiant heat loss and helps maintain standby water temperature.original manufacturer of this kit for 27 years.
Complete kit is 'fire rated'. no 'foam' spacers (fire hazard),no fiberglass. non-toxic,no carcinogenics,no fibers,'class 1/class a' fire rating.suitable for both gas and electric hot water tanks.
Exclusively sold by jr global sales 'only'. original manufactures of this kit for 27 years. any other sellers advertising this same product here are sending another 'totally' different product that may not be 'tested' or 'fire rated' for safety. please be aware.
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4
Corro-Protec
Corro Protec 40-80 gal Powered Titanium Water Heater Anode Rod
8.8
Great
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$119.99
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$116.00
Used
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$119.99
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$114.99
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Permanent corrosion protection – designed to replace your 40-80-gallon water heater’s hex head anode rod, it can help defend against any level of water hardness.
Quick and easy installation – we’ve included an easy-to-follow paper and step-by-step online pdf instructions to make installing your anode rod much easier.
Say goodbye to odors – eliminate your water heat odor problem by removing the rotten egg smell caused by hydrogen sulfide with our advanced powered anode rod.
Energy efficient design – by reducing mineral accumulation on the tank it can help improve the water quality while reducing stress on the tank to reduce energy costs.
North american quality – manufactured right here in north america, our hot water heater anode rod not only extends the life of your tank but is backed by a 20-year warranty.
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$119.99
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$116.00
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$119.99
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$114.99
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7.9
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How we Score
9.5
features quality
8.9
popularity
8.4
brand reputation
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About Us
5
VEVOR
VEVOR 18L Natural Gas Hot Water Heater 4.8GPM 36KW Tankless Instant Boiler Stainless
8.6
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$125.99
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$74.00
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BRG Scoring Index
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Easy to install
7.5
Tech Support
7.0
Temperature Control
6.0
Value for money
7.5
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Product Highlights
【energy-saving and combustion technology】the tankless gas water heater adopt advanced energy-saving and combustion technology to decrease gas consumption and burning noise,compact and light weight structure with 11.5% energy saving technology,compact size and lightweight design for easily carry.
【led screen and stainless steel body】the instant water heater use adjusting knob controller,adjust the temperature as needed,power off automatically when heater opening over 20 minutes. over heat protection that the water heater will be automatically turned off over 75 °c .please note:depending on the temperature of the environment ,heat time may be prolonged and flow m...
【 vevor natural gas water heater】water heaters parameter:gas type: natural gas,water flow rate: 12 l/min,heat load: 24 kw,rate gas pressure: 2000 pa,suitable water pressure: 0.02-0.8mpa,water pipeline:g1/2" steel tube,ignition mode: 2 qualified 1.5v batteries (no included batteries).
【multi protection】the gas hot water heater adopt heat resistant metal body,low water pressure startup function,high efficient energy saving,anti-freezing protection function,over heat protection,over water pressure protection function,low water-pressure startup,stable water flowing under high pressure,automatic ic ignition system(no included batteries).
【application environment and note】the portable hot water heater suit for the household,offering you a relaxing shower at home.note:the type of water heater is only suitable for natural gas. please confirm the gas type before buying! do not install the water heater in the bathroom!
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$125.99
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$74.00
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6
Tengchang
Tengchang 18L/min 4.8 GPM Tankless Hot Water Heater Propane LPG Gas Instant
8.4
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Automatic ignition system, flame failure protection device, water & gas combination unit ,fitted with over heating and pressure safeguard, suitable for both summer and winter.
Gas pressure: 2800pa, gas pipe: g 1/2", water inlet: g1/2'', water outlet: g1/2''. npt 1/2" female to g 1/2" male, vent type:4.3" flue duct.
Gas type: lpg liquid petroleum gas (propane), capacity: 18l/min (4.8gal), 25 degrees warm water producing rate.
Working temperature:-8-45℃, thermal input: 36kw, thermal efficiency: ≥80.8%. temperature rise: 25℃.
Certification: iso 9001:2000, 3 years warranty for parts.
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7
Eccotemp
Eccotemp FVI-12-NG High Capacity Gas Tankless Water Heater
8.0
Great
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$279.00
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$181.00
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$294.99
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For indoor installation with safe, efficient power ventilation and perfect for any small home, cabin or apartment.
Safe electronic ignition system; plugs into standard 120v electrical outlet with ul-listed cord.
1.07 a
Whole home indoor, gas powered tankless water heater, rated at 3.6 gpm that activates only when in use, making it an energy saver.
Easy to read digital temperature display, on a compact and space-saving design with minimal noise output.
Uses standard 1/2" npt water fittings and is equipped with easy to use manual water temperature controls.
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$279.00
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$181.00
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8
Marey
Marey Power Gas 10L 3.1GPM Natural Gas Tankless Water Heater
7.8
Very Good
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$181.29
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$69.00
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$131.99
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$157.58
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Works easily with low levels of water pressure. only uses gas while water is flowing
Unlimited hot water whenever is needed
Allows water temperature to be controlled
Can last a lifetime, keeping 87% efficiency level
Compact design saves space and is easy to install almost anywhere
Provide endless hot water on demand and only as needed
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$181.29
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$69.00
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$131.99
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$157.58
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9
Rheem
40 gal. Residential Gas Water Heater, NG, 38000 BtuH
7.4
Very Good
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Country of manufacture: multiple
Mpn: prog40-38n rh62
Manufacturer: rheem
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10
Rheem
Rheem RTEX-18 240V 2 Heating Chambers Residential Tankless Water Heater
7.2
Very Good
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$424.99
New
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$296.00
Used
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$425.00
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$505.27
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$425.00
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$425.00
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BRG Scoring Index
Our Scoring considers products features, online popularity, consumers reviews, brand reputation, prices and more
Popularity & Sales
7.0
Easy to install
9.0
Energy efficiency
8.0
Tech Support
6.5
Temperature Control
9.0
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Product Highlights
Most advanced self-modulation, adjust power to meet hot water demand
Simple installation – bottom 3/4 inch npt water connections
External digital thermostatic control with led display (+/1 degree accuracy)
Durable copper immersion two heating elements, field serviceable. flow rate- up to 4.4 gpm
Threaded for easy replacement, simple installation, digital temperature display
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$424.99
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$296.00
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$425.00
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$505.27
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$425.00
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$425.00
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40 gallon hot water heaters
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