A.O. Smith Signature GT15THR-180X3 Gas Tankless Water Heater
160000
Sale price
$1,126.95
Regular price $2,049.00
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A.O. Smith Signature GT15THR-180X3 Gas Tankless Water Heater
Sale price
$1,126.95
Regular price $2,049.00
Taxes included.
Shipping calculated at checkout.
The A.O. Smith Signature Series Premium Condensing Gas Tankless Water Heater delivers exceptional on-demand hot water performance for residential applications. Engineered with advanced X3 scale prevention technology, it actively inhibits scale buildup from hard water to extend operating life up to three times longer than standard models. A heavy-duty, single stainless steel heat exchanger minimizes internal welds for outstanding durability and efficiency.
Equipped with an integrated recirculation pump, this system allows customizable scheduling to ensure fast, continuous hot water during peak household demand. The digital control display provides clear status monitoring and error code diagnostics, while versatile construction supports flexible indoor or outdoor wall-mount installations.
Key Features
| Brand | A.O. Smith |
| Model Number | GT15THR-180X3 |
| Series | Signature Series X3 |
| Product Type | Tankless Water Heater |
| Fuel Type | Natural Gas / Liquid Propane |
| Maximum Flow Rate | 39.7 L/min |
| Uniform Energy Factor (UEF) | 0.95 |
| Installation Type | Wall Mount |
| Use Location | Indoor / Outdoor |
| Vent Type | PVC / CPVC |
| Water Connection Size | 3/4-in |
| Display Type | Digital |
| Height | 113.3 cm |
| Width | 41.9 cm |
| Depth | 40.9 cm |
| Weight | 47.2 kg |
| ENERGY STAR Certified | Yes |
| AHRI Certified | Yes |
| Safety Listing | CSA Safety Listing |
Highlights
- Integrated X3 scale prevention technology extends unit life up to 3x longer
- Built-in recirculation pump with dual scheduling modes for fast hot water access
- Durable, single stainless steel heavy-duty heat exchanger design
- Flexible indoor and outdoor wall-mount configuration
- Clear digital control display for status monitoring and diagnostics
Compatibility
Compatible with natural gas or liquid propane fuel setups, 3/4-inch water connections, and PVC or CPVC venting systems. Certified for standard residential and mobile home installations.
Warranty
15-year limited manufacturer's warrantyDownloads
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.
