Bosch Tankless Water Heaters

Never run out of hot water again. Bosch® Tankless Water Heaters offer a near-limitless supply of hot water, available in a variety of models. A Bosch® point-of-use tankless hot water heater is designed to work with a single fixture, be it a sink/faucet, shower, dishwasher, or washing machine. Bosch point-of-use tankless water heaters are extremely convenient if you have a need for hot water where a typical hot water outlet is not currently available.

Bosch point-of-use tankless units are also great for home additions, back houses, guest houses, remote areas, and cabins. If you are looking to replace your existing tanked water heater with a tankless version, a Bosch® tankless water heater is a great whole house solution. It can provide a larger volume of hot water, so you can run multiple bathrooms and kitchen without a problem. Bosch tankless water heaters use electricity to heat water as it passes through a heating element. The heating element quickly but gently heats the water as it flows to your fixture. This method means there is no need for hot water storage, providing you with a near-endless supply of hot water.

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Bosch Tronic 3000 US12

Bosch Tronic 3000 US12

Bosch Tankless Water Heater, 240V 50A Electric Single-Point (Powerstream Pro RP12PT) - Indoor

Regular Price: $268.99
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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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Bosch GWHC800ESLP

Bosch GWHC800ESLP

Bosch ProTankless Indoor/Outdoor Tankless Water Heater - Liquid Propane

Regular Price: $1,850.00
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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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Bosch AQ3ES

Bosch AQ3ES

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

Regular Price: $298.99
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Bosch Therm 940 ESO NG

Bosch Therm 940 ESO NG

Bosch Tankless Water Heater, Natural Gas 199,000 BTU Max Non-Condensing Whole House - Outdoor, 9.4 GPM

Our Price: $1,124.99
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Bosch Tronic 5000C PRO WH27

Bosch Tronic 5000C PRO WH27

Bosch Tankless Water Heater, 240V 120A Electric Whole House (Powerstream Pro RP27PT) - Indoor or Outdoor

Regular Price: $977.99
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Bosch GWH C 920 ESC LP

Bosch GWH C 920 ESC LP

Bosch Tankless Water Heater, Liquid Propane 225,000 BTU Max High Output Condensing Commercial - Indoor, 9.2 GPM

Regular Price: $2,603.98
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Bosch Tronic 3000 US7

Bosch Tronic 3000 US7

Bosch Tankless Water Heater, 240V 30A Electric Single-Point (Powerstream Pro RP7P) - Indoor

Regular Price: $220.52
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Bosch TSTAT2

Bosch TSTAT2

Bosch Tankless Water Heater AquaStar Wireless Remote Control for 2400 ES and 2700 ES (7709003213)

Our Price: $142.60
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Bosch Tronic 3000 US9

Bosch Tronic 3000 US9

Bosch Tankless Water Heater, 240V 40A Electric Single-Point (Powerstream Pro RP1P) - Indoor

Regular Price: $211.19
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Bosch Therm 940 ESO LP

Bosch Therm 940 ESO LP

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

Our Price: $1,124.99
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Bosch GWH C 920 ES LP

Bosch GWH C 920 ES LP

Bosch Tankless Water Heater, Liquid Propane 225,000 BTU Max High Output Condensing - Indoor, 9.2 GPM

Regular Price: $2,027.00
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Bosch 4TWHVK3S

Bosch 4TWHVK3S

Bosch Tankless Water Heater Horizontal Vent Kit for 450/635/715 ES

Our Price: $219.99
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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.