A.O. Smith Signature GT15THR-180M Gas Tankless Water Heater
160000
Sale price
$1,038.95
Regular price $1,889.00
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A.O. Smith Signature GT15THR-180M Gas Tankless Water Heater
Sale price
$1,038.95
Regular price $1,889.00
Taxes included.
Shipping calculated at checkout.
The A.O. Smith Signature Series condensing gas tankless water heater delivers reliable, on-demand hot water with exceptional energy efficiency. Engineered with a heavy-duty single stainless steel heat exchanger that eliminates most internal welds, this unit maximizes performance and long-term durability for residential applications.
Equipped with a built-in recirculation pump, this unit minimizes wait times at fixtures by maintaining warm water lines according to customizable schedules. Suitable for both indoor and outdoor wall-mount installations, it features an intuitive digital control display and is field convertible for use with liquid propane.
Key Features
| Brand | A.O. Smith |
| Model Number | GT15THR-180M |
| Series | Signature Series |
| Product Type | Tankless Water Heater |
| Fuel Type | Natural Gas / Liquid Propane |
| Installation Type | Wall Mount |
| Location Capability | Indoor / Outdoor |
| Heat Exchanger Material | Stainless Steel |
| Uniform Energy Factor (UEF) | 0.95 |
| Water Connection Size | 3/4-in |
| Vent Type | PVC / ABS / CPVC |
| Display Type | Digital |
| Height | 85.9 cm |
| Width | 41.9 cm |
| Depth | 40.9 cm |
| Weight | 47.2 kg |
| Mobile Home Compatible | Yes |
| Safety Listing | CSA |
| Certifications | ENERGY STAR, AHRI |
Highlights
Experience Endless Hot Water! This innovative tankless design only heats water when it is needed, allowing for instant, on-demand hot water. Ultra High Efficiency X3 Tankless models include Scale Prevention Technology, eliminating the need for regular scale-related maintenance. Reduce heat costs with Ultra High Efficiency Tankless Water Heaters, saving up to $116/year on annual operating costs. Easily add X3 cartridge at any time, increasing the longevity of the unit to achieve 3 Times longer Product Life.Compatibility
Compatible with natural gas and field convertible to liquid propane. Approved for indoor or outdoor wall-mount installations, mobile home use, and venting with PVC, ABS, or CPVC piping with standard 3/4-in water connections.
How to use
A.O. Smith Ultra High Efficiency Tankless Water Heaters deliver on-demand performance by utilizing an innovative heat exchanger. This eliminates the need for a storage tank by delivering energy-efficient performance and hot water whenever it is needed.Warranty
15 Year Warranty for M & X3 models - see Warranty Guide for more informationDownloads
Frequently asked questions
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Details
This product is crafted with quality materials to ensure durability and performance. Designed with your convenience in mind, it seamlessly fits into your everyday life.
Shipping & Returns
Orders typically ship within 5–7 business days. Returns are accepted within 30 days of delivery — see our Shipping Policy and Refund & Return Policy pages for full details.
