The 310U Series is great for two bath homes in cold climates. The 310U features a max flow rate of 8.0 gallons per minute providing enough hot water to run three showers at the same time. Remote control included as a standard feature. Provides a variety of installation options: indoor, outdoor, and direct vent. Complies with Ultra-Low NOx regulations and meets energy efficiency requirements of ASHRAE 90.1b-1992.
The ATI-310U-N tankless water heater uses up to 190,000 BTUs of natural gas to deliver a max flow rate of 6.6 GPM. It utilizes non-condensing technology to achieve an Energy Factor of 0.82. This model meets Ultra-Low NOx emission requirements, and comes with a 15-year limited warranty.
The comprehensive line of A. O. Smith tankless water heaters provide hot water on-demand.
• The model activates when a fixture is opened
• Burners heat the water as it passes through
• A flow sensor recognizes when the water has stopped and shuts the burners off
Product Specifications
| Tech Specs |
| Emissions: |
Ultra-Low NOx |
| Maximum BTUs: |
190,000 |
| Minimum BTUs: |
15,000 |
| Limited Heat Exchanger Warranty: |
15 Years |
| Limited Parts Warranty: |
5 Years |
| Water Connection Location: |
Bottom |
| Water Connection Size: |
3/4" |
| Heat Exchanger: |
HRS35 Copper Alloy |
| Secondary Heat Exchanger: |
Stainless Steel |
| Voltage: |
120 |
| Energy Factor: |
0.82 |
| Remote Control: |
Yes |
| Technology: |
Non-Condensing |
| Dimensions & Venting |
| Type: |
Space Saving |
| Height: |
20 1/4" |
| Width: |
13 3/4" |
| Depth: |
9 1/2" |
| Product Weight: |
37lbs/17kg |
| Shipping Weight: |
40lbs |
| Vent Type: |
Power Direct Vent |
| Vent Length: |
50 feet at 4 diameter |