Best 40 Gallon Gas Water Heater Consumer Reports 2023

Bestseller No. 1
Reliance 6-40-NOCT 400 35500 BTU Tall Natural Gas Water Heater, 40 gallon
  • Pex polymer lined heat trap nipples
  • Aluminum anode rod
Bestseller No. 2
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.
SaleBestseller No. 3
EcoSmart ECO 11 Electric Tankless Water Heater, 13KW at 240 Volts with Patented Self Modulating Technology
4,662 Reviews
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
SaleBestseller No. 4
Rheem PROG50-42N RH67 PV Professional Classic Residential 42K BTU Power Vent Natural Gas Water Heater, 50-Gallon
  • Uses indoor air for combustion; blower exhausts the flue gases
  • Exclusive air/fuel shut-off device. Maintenance free - no filter to clean
Bestseller No. 5
Bestseller No. 6
Rheem Mid-Efficiency 8.4GPM Outdoor Natural Gas Tankless Water Heater
81 Reviews
Rheem Mid-Efficiency 8.4GPM Outdoor Natural Gas Tankless Water Heater
  • Exclusive Water Savings technology conserving up to 1, 100 gallons per year
  • 157, 000 BTU (gas consumed per hour)
SaleBestseller No. 7
Bosch Thermotechnology Tronic 5000 T 40-Gallon Standard Electric Storage Water Heater (ES40M)
  • APPLICATION: Dimensions : 20.25" W x 49.14" H x 20.25" 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.
Bestseller No. 8
Natural Gas Tankless Water Heater, FOGATTI Indoor 4.0 GPM, 90,000 BTU Instant Hot Water Heater, InstaGas Classic 90
  • 【Smaller size and better performance】It is only 1/4 the size of a 50 gallon tank water heater, yet it produces approximately 4.0 GPM of hot water through 90,000 BTU for both bathroom and kitchen hot water demand. The highly integrated components also provide greater safety from water pressure surges without the need to install an expansion tank.
  • 【Fast and endless supply of hot water】The heat exchanger quickly heats the water to a maximum of 140℉ in a short time, and the hot water is quickly piped through to the shower and tap. No need to wait for the water temperature to heat up slowly like a tank water heater. After that it continues to operate at approximately 4.0 GPM for 40 minutes, which is enough time to produce almost 160 gallons of hot water.

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

Julie Philips
Julie Philips
Julie looks after everything homes-related, from kitchen appliances to gardening tools. She also covers smart home products too, so is the best point of contact for any household advice! She has tested and reviewed kitchen appliances for over 6 years, so she knows what to look for when finding the best. Her favorite thing to test has to be stand mixers as she loves to bake in her spare time.

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