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| Attribute | Details |
|---|---|
| Make | A.O. Smith |
| Model | ATM-160X3 |
| Product Type | Tankless / Instant Water Heater |
| Maximum Flow Rate | 10.5 GPM |
| Heating Capacity | 160,000 BTU (Approx.) |
| Energy Efficiency | High Efficiency |
| Energy Star Certified | Yes |
| Installation Type | Wall Mounted |
| Dimensions | Compact Design (Space Saving) |
| Application | Residential & Light Commercial |
| Water Supply | Continuous Hot Water |
| Temperature Control | Advanced Digital Temperature Control |
| Safety Features | Overheat Protection, Auto Shut-Off |
| Suitable For | Multiple Bathrooms & Simultaneous Usage |
| Usage Areas | Homes, Apartments, Hotels, Clinics |
| Warranty | 5 Years Parts + 15 Years Heat Exchanger + 1 Year Labour |
The A.O. Smith ATM-160X3 is a high-performance tankless water heater designed to deliver continuous hot water for residential and light commercial use. With a powerful flow rate of 10.5 GPM, this unit ensures a reliable hot water supply for multiple outlets at the same time, making it ideal for larger households and high-demand environments.
Key Features
Continuous Hot Water Supply
The tankless design heats water on demand, eliminating the need for a storage tank. You get uninterrupted hot water without waiting or running out.
High Flow Rate – 10.5 GPM
Supports simultaneous use of showers, sinks, and appliances without pressure or temperature drop.
Energy Efficient Operation
Consumes energy only when hot water is required, helping reduce overall energy usage and operating costs compared to traditional storage water heaters.
Compact and Space Saving Design
Wall-mounted unit that occupies minimal space, suitable for modern homes where space efficiency is important.
Advanced Temperature Control
Ensures stable and precise water temperature for a comfortable and safe user experience.
Durable Build Quality
Manufactured by A.O. Smith, known for reliable and long-lasting water heating solutions.
Multiple Safety Features
Includes built-in protections such as overheating control and automatic shut-off for safe operation.
Product Specifications
- Brand: A.O. Smith
- Model: ATM-160X3
- Type: Tankless / Instant Water Heater
- Flow Rate: 10.5 GPM
- Installation: Wall Mounted
- Application: Residential and Commercial
- Energy Efficiency: High
Suitable For
- Large homes with multiple bathrooms
- Apartments and villas
- Hotels, clinics, and commercial establishments
- Users looking for energy-efficient hot water solutions
Why Buy A.O. Smith ATM-160X3 Tankless Water Heater
This model is a practical choice for customers who need consistent hot water performance with lower energy consumption. Its high flow capacity, compact design, and dependable build make it suitable for both home and commercial installations.
Customer Reviews
10 reviews for A.O. Smith ATM-160X3 Tankless Water Heater 10.5 GPM, 160,000 BTU
Why Homeowners Trust Jimmy HVAC for Reliable Comfort
Reliable HVAC Solutions Built for Comfort, Efficiency, and Long-Term Peace of Mind.
Financing Options Available
Enjoy peace of mind with low monthly payments that make your costs easy to manage without compromising on quality.
Transparent, Upfront Pricing
No hidden charges—just honest, clear pricing so you always know exactly what to expect before work begins.
Free Installation Included
Enjoy hassle-free setup with free professional installation completed on every purchase.
Licensed & Certified Technicians
TSSA-licensed experts ensure safe, highly reliable, and precise system installations and diagnostic repairs.
Parts & Labour Warranty
Long-lasting protection with comprehensive parts coverage alongside our trusted, comprehensive labor guarantees.
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Professional HVAC Installation & Replacement
Jimmy HVAC provides professional installation, replacement, and system upgrades for residential and light commercial HVAC equipment throughout the Greater Toronto Area. Our certified technicians ensure every system is installed according to manufacturer specifications, Ontario building codes, and industry best practices.
Whether you are upgrading to a high-efficiency system, replacing ageing equipment, or installing a new HVAC solution, our team serves homeowners and property managers across the GTA with reliable service and transparent pricing.
Full-Service HVAC Solutions
- Furnace installation & replacement
- Air conditioner installation
- Heat pump systems
- Tankless water heaters
- Boiler systems
- HVAC system upgrades & retrofits
- Complete Commercial HVAC Solutions
- Preventative maintenance & system inspections





Brandon Scott –
Hot water supply is reliable, but the unit is a bit louder than I expected. Not a deal breaker though.
Kevin O’Reilly –
Installation was smooth, but I had to call back for a minor adjustment. They resolved it quickly though.
Lauren Brooks –
Jimmy HVAC made the whole process easy. The A.O. Smith tankless heater heats water quickly and saves space compared to my old tank.
Jason Patel –
Decent performance so far. Delivery was slightly delayed but support team kept me updated.
Emily Nguyen –
Very satisfied with the A.O. Smith ATM-160X3. Endless hot water even with multiple showers running. Installation crew from Jimmy HVAC was friendly and efficient.
Mark Davidson –
The unit works well, but I wish the initial consultation included more detail about venting requirements. Still, the Jimmy HVAC team did a solid job installing it.
Olivia Chen –
Quick service and clean installation. Happy with Jimmy HVAC.
Ryan Carter –
Switched to the A.O. Smith ATM-160X3 Tankless Water Heater and noticed an immediate improvement in water pressure and heating time. Jimmy HVAC pricing was fair compared to others I checked.
Sophie Tremblay –
Good tankless system overall. Took a bit longer than expected to install, but Jimmy HVAC handled it professionally.
Daniel McLeod –
Installed the A.O. Smith ATM-160X3 last month through Jimmy HVAC. Hot water is consistent and the unit is quiet. Installation team was on time and explained everything clearly.