Tankless water heaters in comparison
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Last updated on 19.09.2026
1
Rheem 8kW Multi Fixture Tankless Electric Water Heater - 240V
Rheem
8% off
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9,9
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2
APUS 27kW Electric Tankless Water Heater, 240V, Up to 6.5 GPM, 3s Instant
APUS
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To the product (1 offer)
9,8
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3
14kW Tankless Water Heater Electric ORBEK On Demand Heater 240V 3.38GPM
Orbek
13% off
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9,8
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4
14kW Tankless Water Heater Electric 240V, Sink & Shower,Gray
SIVUATEK
5% off
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9,8
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5
MIZUDO Natural Gas Tankless Water Heater, 199,000 BTU, Indoor
MIZUDO
21% off
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9,7
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6
VEVOR RV Tankless Water Heater, 42000BTU, Instant Shower with 15 x 15 inches White Door and Remote Controller, Ideal for RVers' Family Everyday Use (Propane)
VEVOR
7% off
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9,7
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7
18kW Tankless Water Heater Electric, NOVIEEX 240V 3s Instant Hot Water Heater, Flow Rate Max 4.9 GPM, Supply for 2-3 Points, Indoor Installation, Ideal for Apartment, Garage, Salon, Bathroom, Kitchen
NOVIEEX
9% off
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9,7
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8
Westinghouse Tankless Water Heater Gas Indoor, 7.9 GPM, 180,000 BTU
Westinghouse
23% off
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To the product (2 offers)
9,6
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9
WINTEMP 12kW Electric Tankless Water Heater 240V Up to 2.8 GPM ETL
WINTEMP
free shipping
To the product (1 offer)
9,6
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10
Stiebel Eltron Tempra 24 Trend Electric Tankless Water Heater, 24kW, 240V
Stiebel Eltron
18% off
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9,6
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You might also be interested in these tankless water heaters.
CAMPLUX 2.64 GPM Tankless Propane Water Heater, Portable Water Heater Outdoor with Overheating Protection, for Camping, Cabins, Barns, Easy Installation, 68,000 BTU, BD264
Compact, Light Weight, Portable Design - Size 13.0(W)*7.3(D)*21.7(H) inches, weight 18 lbs. Compact and portable design perfect for barns, cabins, outdoor instant hot water and road trips. With CSA safety certification ensures your and your family's safety
$ 279.99
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To the product (1 offer)
ThermoMate CZ422NG, Natural Gas Tankless Water Heater Indoor, Up to 5 GPM
[Max 5 GPM & 113,000 BTU] - The ThermoMate instant hot water heater can supply two showers simultaneously, each delivering 105°F water at a flow rate of 2 GPM, based on an inlet water temperature of 65°F. No waiting time, no cold water shocks, perfect for busy households. Adopting advanced water flow sensor, the built-in chip can adjust the heating power 20,000 times per second, ensuring that the hot water within ±1°F fluctuations for a comfortable shower experience.
$ 399.99
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Rinnai CX199iN SENSEI CX Commercial Tankless Water Heater 199,000 BTU
One Model, Anywhere: This Rinnai tankless water heater is installable indoors or outdoors thanks to our new Versa Vent and powered by either propane or natural gas thanks to a Smart Sense gas control system; RX-OVC vent cap required for outdoor install
$ 1,577.52
free shipping
To the product (4 offers)
EcoSmart ECO 8 Tankless Water Heater, Electric, 8-kW - Quantity 1, 12 x 8 x 4
The product is highly durable
$ 218.85
free shipping
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Vancepic Natural Gas Tankless Water Heater, Indoor Max 3.6 GPM | 80,000 BTU Instant Hot Water Heater
Powerful On-Demand Heating: 80,000 BTU & 3.6 GPM for this tankless water heater natural gas, supports 2-3 water points simultaneously, delivers endless natural gas hot water on demand with no waiting.
$ 259.00
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12KW Electric Tankless Water Heater 240V, Self Modulating White Unit
Important Note:things to know before purchasing,this GREATBEAR 12kW tankless water heater electric requires 1 x 60 AMP double pole breaker, 1 set of 6AWG/2 wires with grounding and 1/2" NPT plumbing connections, product dimensions:12"(H)x7.78"(W)x3.94"(D).
$ 189.99
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To the product (1 offer)
Eemax HA011240, Grey, 6 Gauge , Gray
Endless hot water
$ 310.84
free shipping
To the product (1 offer)
23% off
GASLAND Gasmart E 199,000 BTU Tankless Water Heater, Up to 7.6 GPM, CSA Certified Whole House Natural Gas Indoor Installation Residential On-demand Instant Hot Water Heater, CE686NG
Unlimited Hot Water On Demand -- Unlike traditional tank water heaters, our tankless gas water heater provides unlimited hot water whenever you need it. No more waiting for the water to reheat — enjoy continuous hot water for showers, laundry, or washing dishes without interruption.Certified by CSA and equipped with multiple safety features, it meets the highest safety standards for reliable operation.
$ 566.99
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To the product (1 offer)
33% off
Waterdrop KJ600 Instant Hot Reverse Osmosis System, 600 GPD, Tankless RO
[First-to-market RO system with heating function] The KJ600 instant hot water dispenser reverse osmosis system can dispense both cold water and hot water to meet your different demands. Adjust the temperature as you wish in the range of 104°F-203°F. 5-stage deep filtration, can effectively reduce TDS, chromium, PFAS, fluoride, microplastics, arsenic, salt, heavy metals, nitrate, particles, chloride and other harmful substances
$ 539.00
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Tankless Water Heater Electric,240V,14kw,Max 3.3GPM,3s Instant Heating,ETL
INSTANT ENDLESS HOT WATER – Fogatti 14kW Electric Tankless Water Heater delivers up to 3.3 GPM at 77°F inlet, supporting 1-2 outlets simultaneously. At 57°F inlet, 1.9 GPM; at 37°F inlet, 1.4 GPM. No tank, no waiting–continuous hot water on demand.
$ 219.99
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5% off
Opti27 opti 27kW 240V 4.5GPM 25-Year Warranty Electric Tankless Water Heater
Save up to 50% on your water heating costs
$ 692.00
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RV Tankless Water Heater, 61,000 BTU On Demand Instant Propane Gas RV Tankless Hot Water Heater with White Door and Remote, 3.9 GPM, 12V，Multi-Protection for RVers' Everyday Use
【Propane RV Water Heater】- Propane Tankless Water Heater on demand, Each heater activates only when hot water is needed. The efficient heating coils heat water on demand, using roughly 88% less energy than a traditional tank water heater.Just need 3.6PSI of water pressure,3.9gallons of hot water can be output per minute. The maximum temperature raise is 123°F.
$ 249.99
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To the product (1 offer)