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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
    (32)
    $539.99 each
    281
    Wed, Feb 3
    294
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    281 Wed, Feb 3
    13 Thu, Feb 4 – Fri, Feb 5
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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
    (47)
    $672.99 each
    58
    Tue, Feb 2
    169
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    58 Tue, Feb 2
    109 Wed, Feb 3
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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
    (25)
    $163.37 each
    33
    Tue, Feb 2
    310
    QtyArrives
    33 Tue, Feb 2
    259 Wed, Feb 3
    18 Thu, Feb 4 – Fri, Feb 5
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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
    (39)
    $965.99 each
    39
    Tue, Feb 2
    164
    QtyArrives
    39 Tue, Feb 2
    119 Wed, Feb 3
    6 Thu, Feb 4 – Fri, Feb 5
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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
    (30)
    $675.95 each
    27
    Tue, Feb 2
    163
    QtyArrives
    27 Tue, Feb 2
    135 Wed, Feb 3
    1 Thu, Feb 4 – Fri, Feb 5
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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
    (16)
    $699.99 each
    51
    Tue, Feb 2
    112
    QtyArrives
    51 Tue, Feb 2
    52 Wed, Feb 3
    9 Thu, Feb 4 – Fri, Feb 5
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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
    47
    Tue, Feb 2
    81
    QtyArrives
    47 Tue, Feb 2
    32 Wed, Feb 3
    2 Thu, Feb 4 – Fri, Feb 5
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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
    (10)
    $159.99 each
    40
    Tue, Feb 2
    160
    QtyArrives
    40 Tue, Feb 2
    120 Wed, Feb 3
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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
    37
    Tue, Feb 2
    102
    QtyArrives
    37 Tue, Feb 2
    61 Wed, Feb 3
    4 Thu, Feb 4 – Fri, Feb 5
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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
    (29)
    $779.99 each
    18
    Tue, Feb 2
    54
    QtyArrives
    18 Tue, Feb 2
    33 Wed, Feb 3
    3 Thu, Feb 4 – Fri, Feb 5
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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
    (8)
    $157.54 each
    16
    Tue, Feb 2
    245
    QtyArrives
    16 Tue, Feb 2
    125 Wed, Feb 3
    104 Thu, Feb 4 – Fri, Feb 5
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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
    (15)
    $680.40 each
    3
    Tue, Feb 2
    32
    QtyArrives
    3 Tue, Feb 2
    29 Wed, Feb 3
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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
    (9)
    $476.57 each
    26
    Tue, Feb 2
    139
    QtyArrives
    26 Tue, Feb 2
    113 Wed, Feb 3
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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
    (28)
    $889.99 each
    17
    Tue, Feb 2
    64
    QtyArrives
    17 Tue, Feb 2
    44 Wed, Feb 3
    3 Thu, Feb 4 – Fri, Feb 5
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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
    (9)
    $855.99 each
    10
    Tue, Feb 2
    57
    QtyArrives
    10 Tue, Feb 2
    41 Wed, Feb 3
    6 Thu, Feb 4 – Fri, Feb 5
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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
    (6)
    $699.99 each
    36
    Tue, Feb 2
    48
    QtyArrives
    36 Tue, Feb 2
    12 Wed, Feb 3
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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
    (6)
    $680.40 each
    4
    Tue, Feb 2
    53
    QtyArrives
    4 Tue, Feb 2
    49 Wed, Feb 3
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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
    20
    Tue, Feb 2
    37
    QtyArrives
    20 Tue, Feb 2
    17 Wed, Feb 3
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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
    7
    Tue, Feb 2
    35
    QtyArrives
    7 Tue, Feb 2
    27 Wed, Feb 3
    1 Thu, Feb 4 – Fri, Feb 5
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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
    10
    Tue, Feb 2
    98
    QtyArrives
    10 Tue, Feb 2
    88 Wed, Feb 3
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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
    (8)
    $1,666.50 each
    55
    Wed, Feb 3
    55
    QtyArrives
    55 Wed, Feb 3
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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
    6
    Tue, Feb 2
    183
    QtyArrives
    6 Tue, Feb 2
    151 Wed, Feb 3
    26 Thu, Feb 4 – Fri, Feb 5
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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
    13
    Tue, Feb 2
    74
    QtyArrives
    13 Tue, Feb 2
    61 Wed, Feb 3
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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
    10
    Tue, Feb 2
    151
    QtyArrives
    10 Tue, Feb 2
    141 Wed, Feb 3
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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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