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EnergyStar Water Heater. Ultra Low NOx Emissions (SCAQMD Rule 1146.2 Compliant). 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. 171k Effective BTU/h.
Item#: 62985
Brand: Noritz
Originally $1,499.00$1,199.00
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Ships in 4-7 Business Days
$195.90
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149 In-Stock
EnergyStar Non-Condensing Water Heater. Ultra Low Nox Emissions (SCAQMD Rule 1146.2 Compliant). 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. 199.9k Effective BTU/h.
Item#: 59260
Model#: NR98-OD-NG
Brand: Noritz
$1,199.00
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6 In-Stock
EnergyStar Condensing Water Heater. Low NOx Emissions (< 40 ng/J or 55 PPM). 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#: 70550
Model#: T-H3-DV-LP
Brand: Takagi
$1,150.00
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16 In-Stock
$1,371.00
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97 In-Stock
EnergyStar Condensing Water Heater. Low NOx Emissions (< 40 ng/J or 55 PPM). Ratings: 6.7 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. 152k Effective BTU/h.
Item#: 77962
Model#: T-H3J-DV-P
Brand: Takagi
$870.00
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1 In-Stock
Ultra Low NOx Emissions (SCAQMD Rule 1146.2 Compliant). Ratings: 5.8 GPM at 40° F Rise, 4.5 GPM at 50° F Rise, 3.9 GPM at 60° F Rise, 3.3 GPM at 70° F Rise. 115k Effective BTU/h.
Item#: 70561
Model#: TK-110U-E-NG
Brand: Takagi
$605.00
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54 In-Stock
EnergyStar Condensing Water Heater. Ultra Low NOx Emissions (SCAQMD rule 1146.2 Compliant). Ratings: 9.5 GPM at 40° F Rise, 7.7 GPM at 50° F Rise, 6.4 GPM at 60° F Rise, 5.5 GPM at 70° F Rise.
Item#: 97847
Model#: RTGH-95DVLN
Brand: Rheem Tankless
Originally $1,099.00$1,065.00
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6 In-Stock
Ultra Low NOx Emissions (SCAQMD Rule 1146.2 Compliant). Ratings: 5.8 GPM at 40° F Rise, 4.5 GPM at 50° F Rise, 3.9 GPM at 60° F Rise, 3.3 GPM at 70° F Rise. 115k Effective BTU/h.
Item#: 70562
Model#: TK-110U-I-NG
Brand: Takagi
$605.00
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72 In-Stock
EnergyStar Non-Condensing Water Heater. Ultra Low Nox Emissions (SCAQMD Rule 1146.2 Compliant). Ratings: 8.4 GPM at 40
Item#: 59261
Model#: NR98-SV-NG
Brand: Noritz
$1,299.00
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5 In-Stock
Ultra Low NOx Emissions (SCAQMD Rule 1146.2 Compliant). 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. 156k Effective BTU/h.
Item#: 70563
Model#: TK-310U-E-NG
Brand: Takagi
$760.00
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47 In-Stock
EnergyStar Water Heater. Ultra Low NOx Emissions (SCAQMD Rule 1146.2 Compliant). Ratings: 6.2 GPM at 40
Item#: 25303
Model#: V65IP
Brand: Rinnai
$680.40
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58 In-Stock
EnergyStar Condensing Water Heater. Low NOx Emissions (< 40 ng/J or 55 PPM). 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#: 70551
Model#: T-H3-DV-NG
Brand: Takagi
$1,150.00
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56 In-Stock
Ultra Low NOx Emissions (SCAQMD Rule 1146.2 Compliant). 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. 156k Effective BTU/h.
Item#: 70564
Model#: TK-310U-I-NG
Brand: Takagi
$760.00
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Shop with Confidence knowing you have the Right system at the Right Price and shipped Right Away. We strive to give our customers the best price and service possible. If you happen to find a better price on your product(s) up to 30 days after your purchase let us know and we will match the price of any online competitor. Simply call our sales or customer service department at 866-631-6389 and one of our representatives will be happy to price match the product(s) for you.
50 In-Stock
EnergyStar Condensing Water Heater. Low NOx Emissions (< 40 ng/J or 55 PPM). 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#: 77759
Model#: TK-540P-NIH
Brand: Takagi
$1,370.00
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Ships in 7-14 Business Days
EnergyStar Condensing Water Heater. Low NOx Emissions (< 40 ng/J or 55 PPM). 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. 112k Effective BTU/h.
Item#: 77960
Model#: T-H3M-DV-P
Brand: Takagi
$749.00
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20 In-Stock
EnergyStar Water Heater. Low NOx Emissions (< 40 ng/J or 55 PPM). Ratings: 4.9 GPM at 40
Item#: 95820
Model#: V53DEP
Brand: Rinnai
$555.60
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93 In-Stock
Ratings: 2.0 GPM at 40° F Rise, 1.5 GPM at 50° F Rise, 1.2 GPM at 60° F Rise, 1.0 GPM at 70° F Rise.
Item#: 70353
Model#: HA011240
Brand: Eemax
$236.21
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21 In-Stock
Under-sink design. 10 GPH Continuous Recovery Rate at 60° F Rise
Item#: 70337
Model#: EMT2.5
Brand: Eemax
$159.90
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459 In-Stock
EnergyStar Water Heater. 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. 102k Effective BTU/h.
Item#: 32015
Model#: NR501OD-LP
Brand: Noritz
$559.00
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5 In-Stock
EnergyStar Non-Condensing Water Heater. Ultra Low NOx Emissions (SCAQMD rule 1146.2 Compliant). Ratings: 6.5 GPM at 40° F Rise, 5.4 GPM at 50° F Rise, 4.5 GPM at 60° F Rise, 3.9 GPM at 70° F Rise.
Item#: 97837
Model#: RTG-70XLN
Brand: Rheem Tankless
Originally $699.00$638.00
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1 In-Stock
EnergyStar Condensing Water Heater. Low NOx Emissions (< 40 ng/J or 55 PPM). 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#: 70557
Model#: T-H3-OS-NG
Brand: Takagi
$1,070.00
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3 In-Stock
EnergyStar Condensing Water Heater. Low NOx Emissions (< 40 ng/J or 55 PPM). Ratings: 8.0 GPM at 40° F Rise, 6.8 GPM at 50° F Rise, 5.7 GPM at 60° F Rise, 4.8 GPM at 70° F Rise. 171k Effective BTU/h.
Item#: 70558
Model#: T-H3S-DV-LP
Brand: Takagi
$979.00
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3 In-Stock
EnergyStar Condensing Water Heater. Low NOx Emissions (< 40 ng/J or 55 PPM). Ratings: 8.0 GPM at 40° F Rise, 6.8 GPM at 50° F Rise, 5.7 GPM at 60° F Rise, 4.8 GPM at 70° F Rise. 171k Effective BTU/h.
Item#: 70559
Model#: T-H3S-DV-NG
Brand: Takagi
$979.00
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14 In-Stock
Tools & Articles
The Ultimate Guide to Water Heaters
How to Pick a Hot Water Heater

Tankless Water Heaters at ACWholesalers


Tankless water heaters are a modern alternative to traditional storage-tank units. A tankless water heater, as the name suggests, does not have a storage tank of hot water waiting to be distributed throughout the home. Instead, it heats only the water that is requested from a faucet or other appliance.

One main advantage of a tankless water heater is the continuous flow of hot water it can produce. Tankless water heaters can heat water within seconds and continue for as long as needed. If the tankless unit is sized correctly to meet the demands of the home, hot water will continue to flow without interruption.

Another benefit of tankless hot water heaters is their compact build. Instead of using obtrusive storage tanks, they simply mount on a wall, thus requiring very little space for installation.

Tankless water heaters are also popular due to their superior levels of efficiency. These units only heat water when it's needed, whereas tank models keep the stored water heated throughout the day and waste energy.

Choosing a Tankless Water Heater


To figure out which tankless water heater best suits a home, it's important to choose the right fuel type, vent type, flow rate (GPM), temperature rise, and uniform energy factor (UEF).

Fuel Type
Tankless water heaters are available in three fuel types: natural gas, liquid propane, and electric.

Vent Type
For indoor-installed tankless units, there are three vent types: power vent, direct vent, and concentric vent. Power venting uses a motor to force exhaust gases outside while pulling in fresh air from the surrounding space. Direct venting uses two separate pipes that run outside for direct intake and exhaust. Concentric venting uses a single, concentric pipe for both intake and exhaust. For outdoor tankless water heaters, no venting is required as the unit vents naturally in the open air.

Flow Rate & Temperature Rise
Flow rate determines how much hot water is needed to serve the targeted fixtures and faucets, which is a number calculated in gallons per minute (GPM). Temperature rise is also a number, which is calculated by subtracting the groundwater temperature from the desired outlet temperature. This difference is how many degrees the water must heat up to reach the desired temperature.

Uniform Energy Factor
A tankless water heater's uniform energy factor (UEF) describes its efficiency. Simply put, the higher the number, the more efficient the model is.