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  • Non-Condensing Indoor Tankless Water Heater (6.6 GPM, NG/LP) Product Image
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    Non-Condensing Indoor Tankless Water Heater (6.6 GPM, NG/LP) TK-110U-I Non-Condensing Indoor Tankless Water Heater (6.6 GPM, NG/LP)
    SKU: TK-110U-I
    Brand: Takagi
    (19)
    $539.99 each
    354
    Tue, Oct 6
    354
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  • T-H3M-DV-N High Efficiency Indoor Tankless Condensing Water Heater (NG) Product Image
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    T-H3M-DV-N High Efficiency Indoor Tankless Condensing Water Heater (NG) T-H3M-DV-N T-H3M-DV-N High Efficiency Indoor Tankless Condensing Water Heater (NG)
    SKU: T-H3M-DV-N
    Brand: Takagi
    (40)
    $672.99 each
    160
    Tue, Oct 6
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    160 Tue, Oct 6
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  • ES4 Tronic 3000T Point-of-Use Electric Mini-Tank Water Heater Product Image
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    ES4 Tronic 3000T Point-of-Use Electric Mini-Tank Water Heater ES4 ES4 Tronic 3000T Point-of-Use Electric Mini-Tank Water Heater
    SKU: ES4
    Brand: Bosch
    (24)
    $163.37 each
    155
    Tue, Oct 6
    279
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    155 Tue, Oct 6
    124 Thu, Oct 8 – Fri, Oct 9
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  • T-H3-DV-N Indoor Tankless High Efficiency Water<br>Heater (NG) Product Image
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    T-H3-DV-N Indoor Tankless High Efficiency Water Heater (NG) T-H3-DV-N T-H3-DV-N Indoor Tankless High Efficiency Water Heater (NG)
    SKU: T-H3-DV-N
    Brand: Takagi
    (34)
    $965.99 each
    151
    Tue, Oct 6
    151
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    151 Tue, Oct 6
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  • T-H3M-DV-P Indoor Tankless High Efficiency Condensing Water Heater (LP) Product Image
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    T-H3M-DV-P Indoor Tankless High Efficiency Condensing Water Heater (LP) T-H3M-DV-P T-H3M-DV-P Indoor Tankless High Efficiency Condensing Water Heater (LP)
    SKU: T-H3M-DV-P
    Brand: Takagi
    (27)
    $675.95 each
    110
    Tue, Oct 6
    110
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    110 Tue, Oct 6
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  • Non-Condensing Indoor Tankless Water Heater<br>(8 GPM, NG/LP) Product Image
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    Non-Condensing Indoor Tankless Water Heater (8 GPM, NG/LP) TK-310U-I Non-Condensing Indoor Tankless Water Heater (8 GPM, NG/LP)
    SKU: TK-310U-I
    Brand: Takagi
    (12)
    $699.99 each
    47
    Tue, Oct 6
    47
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    47 Tue, Oct 6
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  • Non-Condensing Outdoor Tankless Water Heater (6.6 GPM, NG/LP) Product Image
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    Non-Condensing Outdoor Tankless Water Heater (6.6 GPM, NG/LP) TK-110U-E Non-Condensing Outdoor Tankless Water Heater (6.6 GPM, NG/LP)
    SKU: TK-110U-E
    Brand: Takagi
    (3)
    $554.99 each
    107
    Tue, Oct 6
    107
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    107 Tue, Oct 6
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  • EMT2.5 Mini Tank<br>Water Heater 120V<br>(2.5 Gallon) Product Image
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    EMT2.5 Mini Tank Water Heater 120V (2.5 Gallon) EMT2.5 EMT2.5 Mini Tank Water Heater 120V (2.5 Gallon)
    SKU: EMT2.5
    Brand: Eemax
    (6)
    $159.99 each
    119
    Tue, Oct 6
    119
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    119 Tue, Oct 6
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  • T-H3-DV-P Indoor Tankless High Efficiency Water<br>Heater (LP) Product Image
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    T-H3-DV-P Indoor Tankless High Efficiency Water Heater (LP) T-H3-DV-P T-H3-DV-P Indoor Tankless High Efficiency Water Heater (LP)
    SKU: T-H3-DV-P
    Brand: Takagi
    (20)
    $984.99 each
    125
    Tue, Oct 6
    125
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    125 Tue, Oct 6
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  • T-H3J-DV-N Indoor<br>Tankless High Efficiency<br>Water Heater (NG) Product Image
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    T-H3J-DV-N Indoor Tankless High Efficiency Water Heater (NG) T-H3J-DV-N T-H3J-DV-N Indoor Tankless High Efficiency Water Heater (NG)
    SKU: T-H3J-DV-N
    Brand: Takagi
    (28)
    $779.99 each
    94
    Tue, Oct 6
    94
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    94 Tue, Oct 6
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  • ES2.5 Tronic 3000T Point-of-Use Electric Mini-Tank Water Heater Product Image
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    ES2.5 Tronic 3000T Point-of-Use Electric Mini-Tank Water Heater ES2.5 ES2.5 Tronic 3000T Point-of-Use Electric Mini-Tank Water Heater
    SKU: ES2.5
    Brand: Bosch
    (7)
    $156.86 each
    95
    Tue, Oct 6
    189
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    95 Tue, Oct 6
    94 Thu, Oct 8 – Fri, Oct 9
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  • V65IP 150,000 BTU Non-Condensing Indoor Tankless Heater (Propane) Product Image
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    V65IP 150,000 BTU Non-Condensing Indoor Tankless Heater (Propane) V65IP V65IP 150,000 BTU Non-Condensing Indoor Tankless Heater (Propane)
    SKU: V65IP
    Brand: Rinnai
    (13)
    $680.40 each
    13
    Tue, Oct 6
    13
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    13 Tue, Oct 6
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  • WH17 Tronic 6000 C Whole House Electric Tankless Water Heater Product Image
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    WH17 Tronic 6000 C Whole House Electric Tankless Water Heater WH17 WH17 Tronic 6000 C Whole House Electric Tankless Water Heater
    SKU: WH17
    Brand: Bosch
    (6)
    $392.04 each
    70
    Tue, Oct 6
    90
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    70 Tue, Oct 6
    20 Thu, Oct 8 – Fri, Oct 9
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  • T-H3S-DV-N Indoor<br>Tankless High Efficiency<br>Water Heater (NG) Product Image
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    T-H3S-DV-N Indoor Tankless High Efficiency Water Heater (NG) T-H3S-DV-N T-H3S-DV-N Indoor Tankless High Efficiency Water Heater (NG)
    SKU: T-H3S-DV-N
    Brand: Takagi
    (24)
    $889.99 each
    26
    Tue, Oct 6
    26
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    26 Tue, Oct 6
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  • Non-Condensing Indoor Tankless Water Heater (10 GPM, NG/LP) Product Image
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    Non-Condensing Indoor Tankless Water Heater (10 GPM, NG/LP) TK-510U-I Non-Condensing Indoor Tankless Water Heater (10 GPM, NG/LP)
    SKU: TK-510U-I
    Brand: Takagi
    (6)
    $855.99 each
    61
    Tue, Oct 6
    61
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    61 Tue, Oct 6
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  • Non-Condensing Outdoor Tankless Water Heater<br>(8 GPM, NG/LP) Product Image
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    Non-Condensing Outdoor Tankless Water Heater (8 GPM, NG/LP) TK-310U-E Non-Condensing Outdoor Tankless Water Heater (8 GPM, NG/LP)
    SKU: TK-310U-E
    Brand: Takagi
    (5)
    $699.99 each
    65
    Tue, Oct 6
    65
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    65 Tue, Oct 6
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  • V65IN 150,000 BTU Non-Condensing Indoor Tankless Heater (NG) Product Image
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    V65IN 150,000 BTU Non-Condensing Indoor Tankless Heater (NG) V65IN V65IN 150,000 BTU Non-Condensing Indoor Tankless Heater (NG)
    SKU: V65IN
    Brand: Rinnai
    (5)
    $680.40 each
    53
    Tue, Oct 6
    53
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    53 Tue, Oct 6
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  • T-H3J-DV-P Indoor<br>Tankless High Efficiency<br>Water Heater (LP) Product Image
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    T-H3J-DV-P Indoor Tankless High Efficiency Water Heater (LP) T-H3J-DV-P T-H3J-DV-P Indoor Tankless High Efficiency Water Heater (LP)
    SKU: T-H3J-DV-P
    Brand: Takagi
    (14)
    $809.95 each
    31
    Tue, Oct 6
    31
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    31 Tue, Oct 6
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  • 199,000 BTU Condensing Ultra-Low NOx Indoor Tankless Water Heater (NG) Product Image
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    199,000 BTU Condensing Ultra-Low NOx Indoor Tankless Water Heater (NG) ATI-540H-N 199,000 BTU Condensing Ultra-Low NOx Indoor Tankless Water Heater (NG)
    SKU: ATI-540H-N
    Brand: AO Smith
    $1,099.99 each
    9
    Tue, Oct 6
    9
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    9 Tue, Oct 6
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  • SPEX3512 FlowCo Electric Tankless Water Heater Product Image
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    SPEX3512 FlowCo Electric Tankless Water Heater SPEX3512 SPEX3512 FlowCo Electric Tankless Water Heater
    SKU: SPEX3512
    Brand: Eemax
    (1)
    $194.99 each
    61
    Tue, Oct 6
    61
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    61 Tue, Oct 6
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  • RU199IN 199,000 BTU Super High Efficiency Condensing Indoor Tankless Water Heater (NG) Product Image
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    RU199IN 199,000 BTU Super High Efficiency Condensing Indoor Tankless Water Heater (NG) RU199IN RU199IN 199,000 BTU Super High Efficiency Condensing Indoor Tankless Water Heater (NG)
    SKU: RU199IN
    Brand: Rinnai
    (5)
    $1,666.50 each
    45
    Tue, Oct 6
    45
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    45 Tue, Oct 6
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  • ES8 Tronic 3000T Point-of-Use Electric Mini-Tank Water Heater Product Image
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    ES8 Tronic 3000T Point-of-Use Electric Mini-Tank Water Heater ES8 ES8 Tronic 3000T Point-of-Use Electric Mini-Tank Water Heater
    SKU: ES8
    Brand: Bosch
    (1)
    $216.73 each
    76
    Tue, Oct 6
    110
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    76 Tue, Oct 6
    34 Thu, Oct 8 – Fri, Oct 9
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  • HomeAdvantage II Electric Tankless Water Dual Heater, 18kW Product Image
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    HomeAdvantage II Electric Tankless Water Dual Heater, 18kW HA018240 HomeAdvantage II Electric Tankless Water Dual Heater, 18kW
    SKU: HA018240
    Brand: Eemax
    (7)
    $365.99 each
    55
    Tue, Oct 6
    55
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    55 Tue, Oct 6
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  • SPEX4208 FlowCo Electric Tankless Water Heater Product Image
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    SPEX4208 FlowCo Electric Tankless Water Heater SPEX4208 SPEX4208 FlowCo Electric Tankless Water Heater
    SKU: SPEX4208
    Brand: Eemax
    (1)
    $194.99 each
    53
    Tue, Oct 6
    53
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FAQs, Manuals & Videos

Resources

Videos

FAQs

  • 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.
  • 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.
  • 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.
  • 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.

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