Tankless Water Heaters

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Eemax EX65T

Eemax EX65T

Eemax Tankless Water Heater, 240V 27A Electric Thermostatic Single-Point w/ Bottom Feed - Indoor

Our Price: $278.66
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Bosch Therm 940 ES LP

Bosch Therm 940 ES LP

Bosch Tankless Water Heater, Liquid Propane 199,000 BTU Max Non-Condensing Whole House - Indoor, 9.4 GPM

Our Price: $1,074.99
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Bosch Therm 830 ES LP

Bosch Therm 830 ES LP

Bosch Tankless Water Heater, Liquid Propane 175,000 BTU Max Non-Condensing Whole House - Indoor or Outdoor, 8.3 GPM

Our Price: $934.99
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Stiebel Eltron TEMPRA 24 PLUS

Stiebel Eltron TEMPRA 24 PLUS

Stiebel Eltron Tankless Water Heater, 208/240V 88/100A Electric Tempra Plus Whole House - Indoor, 4.5 GPM

Our Price: $780.00
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Eemax SS029240T2T

Eemax SS029240T2T

Eemax Tankless Water Heater, 240V 120A Electric Whole House HomeAdvantage in Stainless Steel - Indoor, 4 GPM

Our Price: $838.01
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Eemax SS023240TC

Eemax SS023240TC

Eemax Tankless Water Heater, 240V 93A Electric Whole House HomeAdvantage in Stainless Steel - Indoor, 4 GPM

Our Price: $671.74
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Bosch GWHC800ESLP

Bosch GWHC800ESLP

Bosch ProTankless Indoor/Outdoor Tankless Water Heater - Liquid Propane

Regular Price: $1,850.00
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Stiebel Eltron TEMPRA 29 PLUS

Stiebel Eltron TEMPRA 29 PLUS

Stiebel Eltron Tankless Water Heater, 208/240V 105/120A Electric Tempra Plus Whole House - Indoor, 4.5 GPM

Our Price: $814.00
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Bosch Greentherm C 1050 ES LP

Bosch Greentherm C 1050 ES LP

Bosch Tankless Water Heater, Liquid Propane 199,000 BTU Max Condensing - Indoor or Outdoor, 10.5 GPM

Our Price: $1,799.99
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Eemax SP4208

Eemax SP4208

Eemax Tankless Water Heater, 208V 19.7A Electric Single-Point w/ Top Feed - Indoor

Our Price: $219.41
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Wiseman EC05

Wiseman EC05

Wiseman Everclens Tankless Water Heater Descaling Solution

Regular Price: $22.99
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Bosch AQ3ES

Bosch AQ3ES

Bosch Tankless Water Heater 3" Horizontal Vent Kit w/ Air Intake

Regular Price: $298.99
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Rheem RTG20211

Rheem RTG20211

Rheem Tankless Water Heater 3" x 5" Direct Vent Vertical Termination Kit for RTG-64DV, RTG-84DV, & RTG-95DV

Our Price: $145.99
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Rheem RTG20151D-1

Rheem RTG20151D-1

Rheem Tankless Water Heater 36" Straight Pipe (Vent Length)

Regular Price: $73.99
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Rheem RTG20006DW

Rheem RTG20006DW

Rheem Tankless Water Heater Main Digital Remote Control Thermostat

Our Price: $81.60
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How to Select

How to Select a Tankless Water Heater

The most important factor when deciding which tankless water heater to purchase is based on the number of fixtures you need to get heated water to and the amount of water to heat. It is not uncommon for a homeowner to purchase the tankless unit that seems correct for their application to find that they miscalculated. We always recommend purchasing a tankless unit with redundancy in output; therefore you will never have an issue with lack of hot water.  Most ratings from the manufacturer do not take into account your unique plumbing situation, so consulting a professional is recommended.

Tankless Water Heater Considerations:

  1. Power Type: Electrical, Natural Gas, Liquid Propane. Depending on your house utility configuration, you can connect a tankless unit to any of the following power sources, however, you must consider that an electrical tankless unit will not work in Natural gas applications or Propane, and vice versa.
  2. For Electric Tankless Heating Units, your amperage and voltage are very important. Your breaker size may be too small, or may need to be upgraded to accommodate the new heater. If this is the case, upgrade to a breaker that will have some redundancy in power rating.
    (For example, if your tankless heating unit requires a 40 Amp breaker, we recommend installing a 50 Amp just in case.)
  3. How far your tankless heating unit will be installed from your fixtures. If your heater is too far from your shower, or faucets, they will either get a reduced flow of water, or a lack of heat. This is caused by the added traveling distance the water must travel through your pipes.  If this is a concern for you, consult our staff for expert advice, or consult the installer for recommendations.
  4. Whole house or Point of Use. Point of use tankless units only operates with a single fixture at the point of use. Some point of use models can work with extension kits to expand usage to multiple fixtures. Whereas whole house tankless units are designed for larger volumes and will provide heated water to all fixtures in your household. Once again, it is important to take redundancy into account with Whole house heaters to make sure each fixture has steady, warm flow.

For additional assistance, or for expert advice, contact our Customer Service Department through Live Chat or by calling 1-877-998-9378.