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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 Takagi
    SKU: TK-110U-I
    Brand: Takagi
    (60)
    $795.46 each
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    295
    Wed, Aug 24
    295
    QtyArrives
    295 Wed, Aug 24
    Questions? Call 1-888-757-4774
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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 Takagi
    SKU: T-H3M-DV-N
    Brand: Takagi
    (69)
    $935.50 each
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    113
    Wed, Aug 24
    113
    QtyArrives
    113 Wed, Aug 24
    Questions? Call 1-888-757-4774
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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 Takagi
    SKU: TK-310U-I
    Brand: Takagi
    (34)
    $897.90 each
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    96
    Wed, Aug 24
    96
    QtyArrives
    96 Wed, Aug 24
    Questions? Call 1-888-757-4774
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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 Eemax
    SKU: EMT2.5
    Brand: Eemax
    (16)
    $172.99 each
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    100
    Wed, Aug 24
    100
    QtyArrives
    100 Wed, Aug 24
    Questions? Call 1-888-757-4774
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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 Rinnai
    SKU: V65IP
    Brand: Rinnai
    (18)
    $757.48 each
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    146
    Wed, Aug 24
    146
    QtyArrives
    146 Wed, Aug 24
    Questions? Call 1-888-757-4774
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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 Rinnai
    SKU: RU199IN
    Brand: Rinnai
    (14)
    $1,854.74 each
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    26
    Wed, Aug 24
    26
    QtyArrives
    26 Wed, Aug 24
    Questions? Call 1-888-757-4774
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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 Takagi
    SKU: TK-510U-I
    Brand: Takagi
    (19)
    $1,210.51 each
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    146
    Wed, Aug 24
    146
    QtyArrives
    146 Wed, Aug 24
    Questions? Call 1-888-757-4774
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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 Takagi
    SKU: T-H3M-DV-P
    Brand: Takagi
    (34)
    $781.54 each
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    129
    Wed, Aug 24
    129
    QtyArrives
    129 Wed, Aug 24
    Questions? Call 1-888-757-4774
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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 Bosch
    SKU: ES4
    Brand: Bosch
    (27)
    $217.16 each
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    106
    Wed, Aug 24
    206
    QtyArrives
    106 Wed, Aug 24
    100 Fri, Aug 26 – Mon, Aug 29
    Questions? Call 1-888-757-4774
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  • Tempra 24 Plus, Whole House, Tankless Electric Water Heater Product Image
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    Tempra 24 Plus, Whole House, Tankless Electric Water Heater 239222 Tempra 24 Plus, Whole House, Tankless Electric Water Heater
    SKU: 239222 Stiebel Eltron
    SKU: 239222
    Brand: Stiebel Eltron
    (19)
    $698.00 each
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    46
    Wed, Aug 24
    46
    QtyArrives
    46 Wed, Aug 24
    Questions? Call 1-888-757-4774
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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 Takagi
    SKU: T-H3-DV-N
    Brand: Takagi
    (46)
    $1,234.74 each
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    178
    Wed, Aug 24
    178
    QtyArrives
    178 Wed, Aug 24
    Questions? Call 1-888-757-4774
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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 Takagi
    SKU: TK-110U-E
    Brand: Takagi
    (14)
    $654.75 each
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    34
    Wed, Aug 24
    34
    QtyArrives
    34 Wed, Aug 24
    Questions? Call 1-888-757-4774
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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 Eemax
    SKU: HA018240
    Brand: Eemax
    (8)
    $365.99 each
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    45
    Wed, Aug 24
    45
    QtyArrives
    45 Wed, Aug 24
    Questions? Call 1-888-757-4774
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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 Takagi
    SKU: T-H3S-DV-N
    Brand: Takagi
    (34)
    $1,148.00 each
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    Added to List Icon List
    77
    Wed, Aug 24
    77
    QtyArrives
    77 Wed, Aug 24
    Questions? Call 1-888-757-4774
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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 Takagi
    SKU: T-H3J-DV-N
    Brand: Takagi
    (34)
    $937.75 each
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    58
    Wed, Aug 24
    58
    QtyArrives
    58 Wed, Aug 24
    Questions? Call 1-888-757-4774
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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 Bosch
    SKU: ES2.5
    Brand: Bosch
    (9)
    $263.95 each
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    116
    Wed, Aug 24
    154
    QtyArrives
    116 Wed, Aug 24
    38 Fri, Aug 26 – Mon, Aug 29
    Questions? Call 1-888-757-4774
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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 Eemax
    SKU: SPEX3512
    Brand: Eemax
    (2)
    $196.02 each
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    Added to List Icon List
    53
    Wed, Aug 24
    53
    QtyArrives
    53 Wed, Aug 24
    Questions? Call 1-888-757-4774
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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 Rinnai
    SKU: V65IN
    Brand: Rinnai
    (12)
    $757.48 each
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    Added to List Icon List
    15
    Wed, Aug 24
    15
    QtyArrives
    15 Wed, Aug 24
    Questions? Call 1-888-757-4774
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  • V75IP 180,000 BTU Non-Condensing Indoor Tankless Heater (Propane) Product Image
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    V75IP 180,000 BTU Non-Condensing Indoor Tankless Heater (Propane) V75IP V75IP 180,000 BTU Non-Condensing Indoor Tankless Heater (Propane)
    SKU: V75IP Rinnai
    SKU: V75IP
    Brand: Rinnai
    (6)
    $924.74 each
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    Added to List Icon List
    82
    Wed, Aug 24
    82
    QtyArrives
    82 Wed, Aug 24
    Questions? Call 1-888-757-4774
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  • 199,000 BTU Ultra Low-NOx Natural Gas Indoor Condensing Tankless Water Heater (10 GPM) Product Image
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    199,000 BTU Ultra Low-NOx Natural Gas Indoor Condensing Tankless Water Heater (10 GPM) TK-540P-NIH 199,000 BTU Ultra Low-NOx Natural Gas Indoor Condensing Tankless Water Heater (10 GPM)
    SKU: TK-540P-NIH Takagi
    SKU: TK-540P-NIH
    Brand: Takagi
    (3)
    $1,442.03 each
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    Added to List Icon List
    79
    Wed, Aug 24
    79
    QtyArrives
    79 Wed, Aug 24
    Questions? Call 1-888-757-4774
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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 Takagi
    SKU: T-H3-DV-P
    Brand: Takagi
    (25)
    $1,272.36 each
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    Added to List Icon List
    121
    Wed, Aug 24
    121
    QtyArrives
    121 Wed, Aug 24
    Questions? Call 1-888-757-4774
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  • RL94IN 199,000 BTU Non-Condensing Indoor Tankless Heater (NG) Product Image
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    RL94IN 199,000 BTU Non-Condensing Indoor Tankless Heater (NG) RL94IN RL94IN 199,000 BTU Non-Condensing Indoor Tankless Heater (NG)
    SKU: RL94IN Rinnai
    SKU: RL94IN
    Brand: Rinnai
    (7)
    $1,525.61 each
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    Thu, Sep 22 – Thu, Oct 20
    Arrives
    Thu, Sep 22 – Thu, Oct 20
    Questions? Call 1-888-757-4774 or
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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 Bosch
    SKU: ES8
    Brand: Bosch
    (4)
    $284.26 each
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    Added to List Icon List
    73
    Wed, Aug 24
    76
    QtyArrives
    73 Wed, Aug 24
    3 Fri, Aug 26 – Mon, Aug 29
    Questions? Call 1-888-757-4774
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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 Takagi
    SKU: TK-310U-E
    Brand: Takagi
    (11)
    $805.44 each
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    Added to List Icon List
    24
    Wed, Aug 24
    24
    QtyArrives
    24 Wed, Aug 24
    Questions? Call 1-888-757-4774
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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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