Gas water heaters in comparison
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Last updated on 19.09.2026
1
Westinghouse Tankless Water Heater Gas Indoor, 7.9 GPM, 180,000 BTU
Westinghouse
23% off
free shipping
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9,9
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2
Rheem RTG Series 8.4 GPM Natural Gas Tankless Water Heater Outdoor | 180,000 BTUs High Efficiency On Demand, Continuous Hot Water | Non-Condensing
Rheem
free shipping
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9,8
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3
APUS Natural Gas Tankless Water Heater, 95,000 BTU, 4.42 GPM Indoor
APUS
17% off
free shipping
To the product (1 offer)
9,7
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4
MIZUDO 120,000 BTU Natural Gas Tankless Water Heater,Max 5.1 GPM,WiFi&APP
MIZUDO
19% off
free shipping
To the product (1 offer)
9,7
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5
Ranein Natural Gas Tankless Water Heater, 8.5 GPM, 190,000 BTU, Indoor
Ranein
free shipping
To the product (1 offer)
9,7
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6
ThermoMate CZ422NG, Natural Gas Tankless Water Heater Indoor, Up to 5 GPM
thermomate
free shipping
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9,7
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7
Novieex Natural Gas Tankless Water Heater Up to 4.3 GPM 100,000 BTU, Indoor
NOVIEEX
free shipping
To the product (1 offer)
9,6
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8
Rinnai RE180iN Non-Condensing Natural Gas Tankless Water Heater
Rinnai
free shipping
To the product (3 offers)
9,5
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9
ORBEK Tankless Water Heater Natural Gas Indoor, 100K BTU 4.3 GPM,OFC Copper
Orbek
free shipping
To the product (1 offer)
9,4
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10
FOGATTI Tankless Water Heater Natural Gas Outdoor On Demand CSA Certified
FOGATTI
5% off
free shipping
To the product (1 offer)
9,4
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You might also be interested in these gas water heaters.
Natural Gas Tankless Water Heater, 4.74 GPM 18L Indoor,Constant propane water heater,Instant Hot Natural Gas Water Heater with Fahrenheit Digital Display,Multi-Protection
【Tankless Water Heater】- Natural Gas Tankless Water Heater with Steady Temperature Control & Multiple Safety Protections (Flame Failure Device, Overheating Protection). Only 3.6PSI water pressure required, outputs 4.74 gallons of hot water per minute, maximum temperature raise up to 75°C. Applicable exclusively to Natural Gas (LNG).
$ 219.99
free shipping
To the product (1 offer)
Heatrova Natural Gas Tankless Water Heater, 4.3 GPM, 102,000 BTU, 3/4" NPT
INSTANT HOT WATER FOR LARGER HOMES:This indoor natural gas tankless water heater delivers instant hot water on demand with a powerful 4.3 GPM flow rate and 102,000 BTU heating capacity, providing endless hot water for 3–4 fixtures simultaneously. Ideal for showers, kitchens, and bathrooms in larger residential homes.
$ 349.99
free shipping
To the product (1 offer)
A.O. Smith GPVX-50L ProMax SL Power Vent Gas Water Heater with Side-Mounted Recirculating Taps, 50 gal
Blue Diamond glass coating provides superior corrosion resistance compared to the industry-standard glass lining
$ 2,199.00
free shipping
To the product (1 offer)
Natural Gas Tankless Water Heater,5.26GPM 20L Outdoor,Instant Hot Natural Gas Water Heater with Fahrenheit Digital Display,Multi-Protection
【Tankless Water Heater】– This natural gas tankless water heater features steady temperature control and multiple safety protections, including a flame failure device, anti-freeze protection, and overheating protection. It operates with just 3.6 PSI of water pressure, delivering up to 5.26 gallons of hot water per minute. With a maximum temperature rise of 149°F, this unit is designed exclusively for use with natural gas (LNG).
$ 279.99
free shipping
To the product (1 offer)
23% off
GASLAND Gasmart E Natural Gas Tankless Water Heater Indoor, Up to 5.8 GPM 150,000 BTU, CSA Certified Whole House Installation Residential On-demand Instant Hot Water Heater, CE528NG
GASLAND
$ 439.99
free shipping
To the product (1 offer)
22% off
Hillhub Portable Propane Water Heater for Camping Instant Hot & Shower Pump
【3s Instant Heating】 Boasting 20,500 BTU ultra-heating efficiency, camping water heater delivers lightning-fast heating in just 3 seconds, raising hot water temperature to 77°F (25°C) instantly—ideal for portable shower for camping or camping water heater. With hot water flow rate of 2.2-3L/min and gas consumption of 20MJ/h, perfect for outdoor use where reliable portable water heater is essential, no more waiting for hot water.
$ 280.44
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To the product (1 offer)
CAMPLUX Natural Gas Tankless Water Heater, Up to 3.06 GPM 75,000 BTU
【2.64 GPM Gas Water Heater】CAMPLUX gas tankless water heater delivers endless hot water on demand for 1-2 water points, which is perfect for small living spaces such as tiny houses, mobile homes, and apartments
$ 279.99
free shipping
To the product (1 offer)
Noritz NR98SVNG 7.5 GPM Indoor/Outdoor Tankless Natural Gas Water Heater
Flow rates up to 9.8 GPM
$ 1,815.58
free shipping
To the product (3 offers)
VEVOR Electric Water Heater, 18 Gallon Tank Instant Hot Water Heater, 1.6KW Tankless Water Heater with Knob Control, IPX4 Waterproof Side Connection On Demand Heaters for Shower, Bath
18-Gallon Water Capacity: With a 18-gallon/70L storage capacity, this heater provides ample hot water for family needs, including dishwashing and laundry. Its 1600W high-power heating reduces wait time for hot water at the faucet.
$ 219.90
free shipping
To the product (1 offer)
Furrion Tankless Gas Water Heater, White, 2.4 GPM, 60,000 BTU, Antifreeze Protection, Propane w/Electric Ignition, Wall Thermostat, Retrofit RV Water Heater Upgrade, Safety Shutoff – FWH09AFA-AM
INSTANT HOT WATER — 2.4 gallons of hot water delivered to your RV faucets per minute and 60,000 BTU means your tankless hot water heater will keep up with the demands of a busy family
$ 815.95
free shipping
To the product (1 offer)
Marey Tankless Water Heater Gas, 7.5 GPM, 170,000 BTU, Liquid Propane, CSA Certified, Indoor
Efficient Performance, Smart Design: Our advanced technology ensures high efficiency and long-lasting durability, boasting a powerful 170,000 BTU capacity. Its user-friendly display allows for dynamic power adjustment tailored to your specific needs.
$ 789.09
free shipping
To the product (1 offer)
EZ Ultra HE Natural Gas Indoor Condensing Tankless Water Heater - Digital Display - Whole Home
EZ Tankless
$ 669.95
free shipping
To the product (1 offer)