A.O. Smith
A.O. Smith Signature Series 10 GPM Tankless Water Heater
A.O. Smith Signature Series indoor natural gas tankless water heater. A condensing design provides 199,000 BTU input and up to 10 GPM at a 35 degree F rise. Actual hot water flow depends on incoming water temperature and demand. Confirm exact model and installation requirements before purchase.
- Manufacturer model
- GT15-540-NI
- AMS stock number
- AMS-WH-10GPM
- Condition
- New
Delivery & pickup
Front door delivery available across St. Louis Metro East. Cost and scheduling are confirmed with you before payment. Local pickup also available in Fenton, MO.
AMS confirms delivery availability, fees and timing before payment. Pickup is by appointment.
Professional installation is required. A qualified installer should confirm gas supply, venting, drainage and sizing for your home. Flow ratings alone don't determine fit.
Specifications
- Manufacturer model
- GT15-540-NI
- Fuel type
- Natural Gas (NG)
- Series
- Signature Series
- Type
- Tankless / condensing
- Location
- Indoor
- Mounting
- Wall mount
- Maximum flow (GPM)
- 10
- Rated at temperature rise (°F)
- 35
- Input (BTU/h)
- 199000
- UEF (as printed)
- 0.93
- Emissions claim
- Ultra low NOx
- Height (in)
- 23.63
- Width (in)
- 17.75
- Depth (in)
- 11.25
- Weight (lb)
- 63
- Water connections (in)
- 3/4
- Gas line (in)
- 3/4
- Vent
- 3 in. PVC/ABS/CPVC
- Controls
- Integrated temperature controls
- Heat exchangers
- Copper primary and stainless steel secondary
- Protection
- Freeze, Overheat, Surge, Diagnostic codes
- Installation
- Professional installation required. Confirm gas supply, approved venting, condensate drainage and sizing with installer.