Tankless Water Heaters

Tankless Water Heaters are a great way to heat the water in your home without wasting energy. Several of the heaters below qualify for the 2009 Tankless Water Heater Tax Credit.

Tools to Help You Choose



Tankless Water Heaters are an energy efficient way to heat the water in your home for plumbing systems. With a tankless water heater, there is no storage tank of hot water, so water is only heated when it is called for. When you turn on a tap for hot water, the system will recognize the demand and heat the amount of water that you have asked for at the moment that you have asked for it. Tankless water heaters save space, save energy, and save money.

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  • What is the first thing I should look at when purchasing a tankless water heater?

    Before considering which tankless water heater to purchase, it is important to verify the type of fuel source you will be using. Tankless water heaters come in electric, natural gas, and liquid propane versions. Select the fuel source for the water heater that corresponds to the fuel source that you have. Natural gas is commonly written as NG, while propane is written as LP.

  • How do I know which size tankless water heater to buy?

    Tankless heaters are sized based on the gallons per minute (GPM) they are able to produce. Each tankless heater has a GPM rating associated with it. The best way to size a heater is to determine the maximum flow rate that you'll have at any time. You can assume that each shower requires 2.5 GPM. You may also need to consider any appliances that use a lot of water such as certain types of dishwashers or washing machines. The chart on this help section labeled Tankless Heater Selection will give you a better idea of which heater you need.

  • Do I really save money with a tankless heater?

    Tankless heaters use less energy than traditional tank style heaters. Traditional tank type heaters sit with 40 or 50 gallons of hot water in them all day, this is known as stand-by loss. They are wasting energy keeping this water hot until someone needs it. Tankless water heaters produce hot water only when it is needed. By using less energy tankless heaters will save you a significant amount of money in the long run.

  • Is there a rebate available for tankless water heaters?

    Many of the tankless water heaters qualify for the 2009 energy efficiency tax rebate. The rebate pays back 30% of the cost of the item plus installation costs with a maximum rebate of $1500. The heaters need to have and EF rating of .82 or higher, or a thermal efficiency of .90 or higher. Most of the units we carry qualify for this tax rebate.

Need more help finding what you need?

1-888-757-4774 Monday - Thursday:
8am to 5:45pm
9am to 4:45pm

Comparison Guide


Tankless Water Heater Comparison Guide

Natural Gas/Propane Electric
Warm Climate 1 Cool Climate 2 Warm Climate 1 Cool Climate 2
1 Shower Bosch 1000P Bosch 1600P 1 Shower Bosch AE-115 Bosch AE-125
Bosch 1600P Bosch 1600PS Bosch AE-125 Bosch Tempra-24
Bosch 1600PS Bosch 125BO SE Tempra-15 SE Tempra-29
Bosch 125BO BOSCH 125FX SE Tempra-20 SE Tempra-36
Bosch 125FX Bosch 1600H SE Tempra-24
Bosch 1600H Bosch 2400ES
Paloma PH-20R
Takagi T-K Jr.
2 Showers Bosch 2400ES Paloma PH-28R 2 Showers SE Tempra-29
Paloma PH-20R Paloma PH-28C SE Tempra-36
Takagi T-K Jr. Takagi T-K3
Takagi T-K3-OS
3 Showers Paloma PH-28R Takagi T-H1
Paloma PH-28C
Takagi T-K3
Takagi T-K3-OS
4 Showers Takagi T-H1

1. Warmer climates: 70° incoming groundwater on average

2. Cooler climates: 40° incoming groundwater on average

Manuals -

Takagi Tankless Water Heaters

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Rinnai Tankless Water Heaters

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Stiebel Eltron Electric Tankless Water Heaters

Stiebel Eltron electric tankless water heaters include Tempra electric tankless water

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Tankless Heater Venting & Parts

This category contains various venting parts.

Valves & Accessories

This category contains a variety of valves and other accessories that are suitable fo