Tankless Water Heaters

Tankless water heaters provide continuous and uninterrupted hot water for multiple household demands at the same time. A tankless water heater comes available in electric or gas configurations suited to your exact needs and specifications.

According to the EPA, water heating ranks as the 3rd largest household energy expense and may reach as much as 25% of the energy consumed in your home. Depending on usage, a household could save up to $384 yearly by using a tankless water heater,

Tankless Water Heater Benefits:

  • Energy savings
  • Convenience
  • Increased Space
  • Reliability

Westside Wholesale caries the finest names in residential tankless water heaters from Rheem Tankless, Bosch, Eemaz, Norritz, Stiebel Eltron, and Wiseman. Browse ankless water heater prices, read reviews, and order online securely. Maxmize savings with our buyer rewards program. Shop online Securely.

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Bosch Tronic 3000 US3

Bosch Tronic 3000 US3

Bosch Tankless Water Heater, 120V 29A Electric Point-of-Use (Powerstream Pro RP3P) - Indoor

Our Price: $192.00
as low as: $178.56

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Stiebel Eltron TEMPRA 12 B

Stiebel Eltron TEMPRA 12 B

Stiebel Eltron Tankless Water Heater, 208/240V 44/50A Electric Tempra Whole House - Indoor, 3 GPM

Our Price: $450.00
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Rheem RTG-84DVLP

Rheem RTG-84DVLP

Rheem Tankless Water Heater, Liquid Propane 199,000 BTU Max Direct Vent Whole House Ressidential/Commercial - Indoor, 8.4 GPM

Our Price: $879.99
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Stiebel Eltron DHC 3-2

Stiebel Eltron DHC 3-2

Stiebel Eltron Tankless Water Heater, 208/240V 12/14A Electric Single-Point - Indoor

Our Price: $179.00
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Eemax EX48T-ML

Eemax EX48T-ML

Eemax Tankless Water Heater, 240V 20A Electric Thermostatic Single-Point Multiple Lavatory w/ Bottom Feed - Indoor

Our Price: $292.63
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Eemax SP60

Eemax SP60

Eemax Tankless Water Heater, 277V 22A Electric Single-Point w/ Top Feed - Indoor

Our Price: $219.41
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Eemax PA010240T

Eemax PA010240T

Eemax Tankless Water Heater, 240V 40A Electric Whole House ProAdvantage Series - Indoor, 2.5 GPM

Our Price: $457.54
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Noritz NRC98-DV-NG

Noritz NRC98-DV-NG

Noritz Eco Tough Indoor Tankless Water Heater, 4" Direct Vent - Natural Gas - 180,000 BTU

Our Price: $1,299.99
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Bosch Greentherm C 950 ES NG

Bosch Greentherm C 950 ES NG

Bosch Tankless Water Heater, Natural Gas 175,000 BTU Max Condensing Whole House - Indoor or Outdoor, 9.2 GPM

Our Price: $1,294.95
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Rheem RTGH-95XLN

Rheem RTGH-95XLN

Rheem Tankless Water Heater, Natural Gas 199,900 BTU Max High Efficiency Condensing Direct Vent - Outdoor, 9.5 GPM

Our Price: $1,329.99
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Rheem RTG20040

Rheem RTG20040

Rheem Tankless Water Heater EZ Link Cable

Our Price: $26.00
as low as: $24.18

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Rheem RTG20214D

Rheem RTG20214D

Rheem Tankless Water Heater Liquid Propane Commercial Conversion Program Chip for RTG-84XP

Our Price: $25.99
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Rheem RTG-95XLP

Rheem RTG-95XLP

Rheem Tankless Water Heater, Liquid Propane 199,000 BTU Max Direct Vent Whole House Residential/Commercial - Outdoor, 9.5 GPM

Our Price: $1,099.99
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Rheem RTG20185

Rheem RTG20185

Rheem Tankless Water Heater 4" Vertical Termination Vent Kit for RTG-74PV & GT-199PV

Our Price: $174.99
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Stiebel Eltron DHC 5-2

Stiebel Eltron DHC 5-2

Stiebel Eltron Tankless Water Heater, 208/240V 18/20A Electric Single-Point - Indoor

Our Price: $179.00
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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 telephoning 1 (877) 998-9378.