Below is the table which shows the top 6 best tankless hot water heater for cold climates 2018. Each and every tankless hot water heater for cold climates is chosen by our specialist reviewers.

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# 1 - Siogreen Ir288 Pou 220v/10a-40a/2kw-9kw Infrared Electric Hot Tankless Water Heater No Corrosion No Limescale. 1 Shower Inlet Above 55f

•The IR288 POU is ideal for small apartment, studio, condo, one bathroom family home in warmer climate zone. •For one sink to one shower/two shower depend on your climate zone, with a capacity of 0.5 to 2.0 gallons of hot water per minute. •This robust, efficient tankless water heater applies Quartz Infrared heating elements and a tankless design for maximum performance and efficiency.. •Compatible with the setup standalone for one to two bathroom house. APPLICATIONS: •Residential/Commercial •Small Apartment/Condo •Hot Water Recirculation Loop •With Storage Tank •Hydronic Heating •Solar Heating Backup DESIGN FEATURES: •Multiple Redundant High Power Quartz Heating Elements •Thermostatic…


  • ✔ONE SHOWER IN COLD REGION > 57F INLET
  • ✔INFRARED TANKLESS WATER HEATER: Using Coil-less Technology energizes your water with quartz infrared energy that creates heat without requiring direct contact of metal for heating with the water.
  • ✔NO CORROSION & FREE MAINTENANCE: Only the water you use is heated. Without water sitting AND Non-Metallic, youve minimized your chances of bacteria and algae accumulating in the water.
  • ✔NO CALCIUM & LIMESCALE DEPOSITS: ideal for hard water areas, well water.
  • ✔SAVE WATER & ENERGY: Our unit only uses the power needed to heat the amount of water required. There is no surplus hot water leftover


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# 2 - Iheat Electric Tankless Water Heater Model Ahs27-d

The iHeat Electric Tankless Water Heater AHS27D have long been known for their durability and reliability, heat water for average size homes in moderate to cold climates The iHeat Water Heater model AHS27D is known to be the most dependable and easy to operate tankless water heater. The AHS27D can deliver enough hot water for homes with more than 3 bathrooms in the warmer climate areas with inlet water temperatures above 54 degree F. The AHS27D can be installed in the same location your current water heater is installed now. Since the AHS27D is electric there is no need for…


  • Delivers 3.62 GPM hot water for homes with more than 3 bathrooms in the warmer climate
  • 99% energy efficient
  • Best performance with inlet water temperatures above 54 degree F.
  • iHeat water heater saves space and electricity cost
  • Lead free certified product


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# 3 - Takagi T-h3j-os-p Condensing Outdoor Tankless Liquid Propane Water Heater

The Takagi T-H3J-OS-P is a high efficient, condensing tankless water heater perfect for residential applications. With gas inputs of 160,000 BTU, the T-H3J-OS-P can produce enough hot water for two bathrooms in warmer climates or 1.5 baths in coldTakagi Condensing Outdoor Tankless Water Heater T-H3J-OS-P SpecsNatural Gas Input - Min. 15,000Btu - Max. 180,000BtuLPG Input - Min. 13,000Btu - Max. 180,000BtuGas Connection - 3/4 inch NPTWater Connection - 3/4 inch NPTNatural Gas Pressure Inlet - Min. 5.0 W.C.LP Gas Pressure Inlet - Min. 8.0 W.C.Ignition - Electronic ignitionElectrical Supply - AC 120C (60 Hz)Water Pressure - Min. 15 psi -…


  • Takagi Condensing Outdoor Tankless Water Heater T-H3J-OS-P SpecsNatural Gas Input - Min. 15,000Btu - Max. 180,000Btu
  • LPG Input - Min. 13,000Btu - Max. 180,000Btu
  • Gas Connection - 3/4 inch NPT
  • Water Connection - 3/4 inch NPT
  • Natural Gas Pressure Inlet - Min. 5.0 W.C.


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# 4 - Takagi T-h3j-os-n Condensing Outdoor Tankless Natural Gas Water Heater

The Takagi T-H3J-OS-N is a high efficient, condensing tankless water heater perfect for residential applications. With gas inputs of 160,000 BTU, the T-H3J-OS-N can produce enough hot water for two bathrooms in warmer climates or 1.5 baths in coldTakagi Condensing Outdoor Tankless Water Heater T-H3J-OS-N SpecsNatural Gas Input - Min. 15,000Btu - Max. 180,000BtuLPG Input - Min. 13,000Btu - Max. 180,000BtuGas Connection - 3/4 inch NPTWater Connection - 3/4 inch NPTNatural Gas Pressure Inlet - Min. 5.0 W.C.LP Gas Pressure Inlet - Min. 8.0 W.C.Ignition - Electronic ignitionElectrical Supply - AC 120C (60 Hz)Water Pressure - Min. 15 psi -…


  • Takagi Condensing Outdoor Tankless Water Heater T-H3J-OS-N SpecsNatural Gas Input - Min. 15,000Btu - Max. 180,000Btu
  • LPG Input - Min. 13,000Btu - Max. 180,000Btu
  • Gas Connection - 3/4 inch NPT
  • Water Connection - 3/4 inch NPT
  • Natural Gas Pressure Inlet - Min. 5.0 W.C.


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# 5 - Ecosmart Eco 27 Electric Tankless Water Heater, 27 Kw At 240 Volts, 112.5 Amps With Patented Self Modulating Technology

Configured for cold climates or high flow rates. Well suited where incoming water temperature can drop below 45 F. For use in more demanding water usage applications. Self modulating flow sensor technology regulates the amount of energy required to heat the water needed. Digital temperature display showing the outlet water temperature setting. Uses (3) 9 KW standard Emerson electric heating elements with brass tops to prevent electrolysis. Copper heat exchanger. Automatic resettable thermostat. (3) 40 DP breakers required. 112A draw. Required wire: 3 sets 8 AWG. Pipe fitting: 3/4'' NPT. Energy efficiency: 99.8%. UL and CSA certified.Weight: 11 lb. Lifetime…


  • Savings of up to 50% on water heating costs. Dimensions :17H x 17W x 3.625D inches ;Pipes fittings :3/4 inch NPT
  • Digital temperature control in 1-degree increments allows control of hot water
  • Copper and stainless components designed for efficiency, durability and easy replacement.
  • Compact size saves valuable storage space, while the stylish and advanced design is pleasing to the eye and Copper and stainless components designed for efficiency, durability and easy replacement.
  • Prior to purchase & installation, please verify that this model is the right size for your hot water needs and electrical requirements. Electrical requirements: 27 kW, 240 volts, (3) 40 required breakers, 112.5 maximum power (AMP), (3) 8 required wire.
  • Required Breaker Quantity: Three 40 Amp Double Pole
  • Recommended Electrical Panel: 200 Amps
  • 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