A.O. Smith Tankless Water Heater 10.5 GPM – Model ATM-199X3
- Price includes installation
- Free shipping within the GTA
$5,399.00 Original price was: $5,399.00.$2,999.00Current price is: $2,999.00. + HST
Description
A.O. Smith ATM-199X3 model tankless water heater delivers 199,000 BTU and up to 8 GPM, making it suitable for homes with 3-4 people. It runs on natural gas and features a direct vent system, efficiently expelling exhaust outdoors.
Its compact wall-mounted design saves space compared to traditional tank heaters.
A.O. Smith is a leading brand in residential and commercial water heating. This high-end model is ideal for buyers seeking comfort and performance over price.
Tankless water heaters generally last 15-20 years, depending on installation, maintenance, and water quality. Regular descaling and flushing help maintain efficiency.
With a UEF of 0.94, this Energy Star-certified unit is highly efficient, reducing energy bills and carbon emissions.
The ATM-199X3 includes a 15-year heat exchanger warranty and 5-year parts coverage. HVAC Fixed offers financing from 1-20 years and a 1-year labor warranty, extendable to 5 or 10 years for added protection.
Product Specification
| Brand | A.O. Smith |
|---|---|
| Family | 210 |
| Nominal GPM | 8 N-GPM Nominal GPM |
| Series | ProLine XE Condensing Tankless |
| GPM | 8 GPH |
| Heating Capacity | 199000 BTU |
| built-in recirculation system | NO |
| Venting Type | Direct |
| Energy Factor | 0.95 |
| Wifi Capable | No Wi-Fi |
| Weight | 72 |
| Product Depth | 23.8″ |
| Warranty on Heat Exchanger | 15-Year |
| Warranty on parts | 5-Year |
| Warranty on Labour | 1252 |
| Energy Star | Yes |
Manufacturer Warranty
After the installation is complete, you can complete the registration process through the manufacturer’s website using the product’s serial number. Alternatively, our team members are available to help you with the registration.
Warranty on Labour
Once the installation has been completed, you may finalize the registration through the manufacturer’s website by entering the product’s serial number. If needed, our support team will be happy to assist you with the process.
Free Shipping in the GTA
The service is provided at no cost, and customers within the GTA will not be charged any extra fees for the pickup or disposal of their old products.







