Natural Gas Tankless Water Heaters

EnergyStar Condensing Water Heater. Ultra-Low NOx. Ratings: 8.3 GPM at 40° F Rise, 6.9 GPM at 50° F Rise, 5.5 GPM at 60° F Rise, 4.8 GPM at 70° F Rise. 199k Max BTU/h.
Item#: 70573
Model#: TK-510U-I-N
Brand: Takagi
Originally $1,153.95$771.08
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Factory-Direct
EnergyStar Condensing Water Heater. Ultra-Low NOx. Ratings: 7.9 GPM at 40° F Rise, 6.2 GPM at 50° F Rise, 5.3 GPM at 60° F Rise, 4.5 GPM at 70° F Rise. 190k Max BTU/h.
Item#: 70564
Model#: TK-310U-I-N
Brand: Takagi
Originally $990.95$670.08
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Factory-Direct
EnergyStar Condensing Water Heater. Ultra-Low NOx Emissions. Ratings: 5.4 GPM at 40° F Rise, 4.4 GPM at 50° F Rise, 3.8 GPM at 60° F Rise, 3.2 GPM at 70° F Rise. 120k Effective BTU/h.
Item#: 70554
Model#: T-H3M-DV-N
Brand: Takagi
Originally $882.95$681.92
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Factory-Direct
EnergyStar Condensing Water Heater. Ultra-Low NOx. Ratings: 8.3 GPM at 40° F Rise, 6.9 GPM at 50° F Rise, 5.5 GPM at 60° F Rise, 4.8 GPM at 70° F Rise. 199k Max BTU/h.
Item#: 70572
Model#: TK-510U-E-N
Brand: Takagi
Originally $1,183.95$711.88
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Factory-Direct
EnergyStar Condensing Water Heater. Ultra-Low NOx Emissions. Ratings: 9.5 GPM at 40° F Rise, 7.5 GPM at 50° F Rise, 6.3 GPM at 60° F Rise, 5.4 GPM at 70° F Rise. 199k Effective BTU/h.
Item#: 70551
Model#: T-H3-DV-N
Brand: Takagi
Originally $1,308.95$1,087.80
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Factory-Direct
EnergyStar Condensing Water Heater. Ultra-Low NOx. Ratings: 7.9 GPM at 40° F Rise, 6.2 GPM at 50° F Rise, 5.3 GPM at 60° F Rise, 4.5 GPM at 70° F Rise. 190k Max BTU/h.
Item#: 70563
Model#: TK-310U-E-N
Brand: Takagi
Originally $965.95$632.36
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Factory-Direct
EnergyStar Condensing Water Heater. Ultra-Low NOx Emissions. Ratings: 5.8 GPM at 40° F Rise, 3.9 GPM at 50° F Rise, 3.9 GPM at 60° F Rise, 3.3 GPM at 70° F Rise. 140k Effective BTU/h.
Item#: 70562
Model#: TK-110U-I-N
Brand: Takagi
Originally $757.95$670.08
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Factory-Direct
EnergyStar Condensing Water Heater. Low NOx Emissions. Ratings: 9.5 GPM at 40° F Rise, 7.5 GPM at 50° F Rise, 6.3 GPM at 60° F Rise, 5.4 GPM at 70° F Rise. 189k Effective BTU/h.
Item#: 70002
Model#: ATO-540H-N
Brand: A.O. Smith
$1,377.00
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Factory-Direct
EnergyStar Water Heater. Ultra Low NOx Emissions. Ratings: 5.5 GPM at 40° F Rise, 4.4 GPM at 50° F Rise, 3.7 GPM at 60° F Rise, 3.2 GPM at 70° F Rise. 120k Effective BTU/h.
Item#: 70845
Model#: EZTR40NG
Brand: Noritz
$2,028.10
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Ultra Low NOx Emissions. Ratings: 7.6 GPM at 40° F Rise, 6.1 GPM at 50° F Rise, 5.0 GPM at 60° F Rise, 4.3 GPM at 70° F Rise. 180k Effective BTU/h.
Item#: 82315
Model#: NR83OD-NG
Brand: Noritz
$1,647.90
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EnergyStar Non-Condensing Water Heater. Ultra Low Nox Emissions. Ratings: 8.4 GPM at 40° F Rise, 6.7 GPM at 50° F Rise, 5.6 GPM at 60° F Rise, 4.8 GPM at 70° F Rise. 199k Effective BTU/h.
Item#: 59261
Model#: NR98-SV-NG
Brand: Noritz
$1,900.00
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EnergyStar Condensing Water Heater. Ultra Low NOx Emissions. Ratings: 10.0 GPM at 40° F Rise.
Item#: 73647
Model#: T9800 SE 199
Brand: Bosch Thermotechnology
$2,019.00
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Factory-Direct
EnergyStar Condensing Water Heater. Ultra Low NOx Emissions. Ratings: 8.0 GPM at 40° F Rise.
Item#: 73648
Model#: T9800 SE 160
Brand: Bosch Thermotechnology
$1,890.00
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Factory-Direct
EnergyStar Water Heater. Ultra Low NOx Emissions. Ratings: 5.0 GPM at 40° F Rise, 3.9 GPM at 50° F Rise, 3.3 GPM at 60° F Rise, 2.8 GPM at 70° F Rise. 120k Effective BTU/h.
Item#: 32016
Model#: NR501OD-NG
Brand: Noritz
$847.50
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EnergyStar Water Heater. Ultra Low NOx Emissions. Ratings: 5.8 GPM at 40° F Rise, 4.6 GPM at 50° F Rise, 3.8 GPM at 60° F Rise, 3.3 GPM at 70° F Rise. 122k Effective BTU/h.
Item#: 32018
Model#: NR662OD-NG
Brand: Noritz
$1,182.90
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EnergyStar Condensing Water Heater. Ultra-Low NOx Emissions. Ratings: 5.4 GPM at 40° F Rise, 4.4 GPM at 50° F Rise, 3.8 GPM at 60° F Rise, 3.2 GPM at 70° F Rise. 120k Effective BTU/h.
Item#: 70555
Model#: T-H3M-OS-N
Brand: Takagi
Originally $882.95$668.60
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Factory-Direct
EnergyStar Condensing Water Heater. Ultra-Low NOx Emissions. Ratings: 5.8 GPM at 40° F Rise, 3.9 GPM at 50° F Rise, 3.9 GPM at 60° F Rise, 3.3 GPM at 70° F Rise. 140k Effective BTU/h.
Item#: 70561
Model#: TK-110U-E-N
Brand: Takagi
Originally $697.95$649.00
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Factory-Direct
EnergyStar Condensing Water Heater. Ultra Low NOx Emissions. Ratings: 9.3 GPM at 40° F Rise, 7.4 GPM at 50° F Rise, 6.2 GPM at 60° F Rise, 5.3 GPM at 70° F Rise. 184k Effective BTU/h.
Item#: 82291
Model#: NRC111-OD-NG
Brand: Noritz
$2,340.40
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Wall Mounted, Condensing Water Heater Ultra Low NOx Emissions Concentric Vent. Ratings: 7.4 GPM at 40° F Rise, 5.9 GPM at 50° F Rise, 4.9 GPM at 60° F Rise, 4.2 GPM at 70° F Rise. 160k Effective BTU/h.
Item#: 92628
Model#: RUS75EN
Brand: Rinnai
$1,079.10
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Only 4 In-Stock
Ultra Low NOx Emissions. Ratings: 8.7 GPM at 40° F Rise, 7.0 GPM at 50° F Rise, 5.8 GPM at 60° F Rise, 4.9 GPM at 70° F Rise.
Item#: 104799
Brand: Noritz
$2,384.20
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Wall Mounted Condensing Boiler Water Heater Ultra Low NOx Emissions Ratings: 9.0 GPM at 40° F Rise, 7.0 GPM at 50° F Rise, 5.8 GPM at 60° F Rise, 5.0 GPM at 70° F Rise. 180k Effective BTU/h
Item#: 153646
Brand: Rheem Tankless
$1,990.00
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Wall Mounted, Condensing Boiler Water Heater Ultra Low NOx Emissions Ratings: 9.8 GPM at 40° F Rise, 7.8 GPM at 50° F Rise, 6.4 GPM at 60° F Rise, 5.4 GPM at 70° F Rise. 199 k Effective BTU/h.
Item#: 154045
Model#: CXP199IN
Brand: Rinnai
$2,005.29
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Factory-Direct
EnergyStar Condensing Water Heater. Ultra-Low NOx Emissions. Ratings: 7.5 GPM at 40° F Rise, 6 GPM at 50° F Rise, 5.1 GPM at 60° F Rise, 4.3 GPM at 70° F Rise. 160k BTU/h.
Item#: 154114
Model#: ATHR-160X3
Brand: A.O. Smith
$1,633.85
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In-Stock
EnergyStar Condensing Water Heater. Ultra-Low NOx Emissions. Ratings: 8.5 GPM at 40° F Rise, 6.8 GPM at 50° F Rise, 5.8 GPM at 60° F Rise, 4.9 GPM at 70° F Rise. 180k BTU/h.
Item#: 154115
Model#: ATHR-180X3
Brand: A.O. Smith
$1,800.70
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