A.O. Smith Signature GT15THR-199X3 Gas Tankless Water Heater

A.O. Smith Signature GT15THR-199X3 Gas Tankless Water Heater

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Sale price  $1,225.95 Regular price $2,229.00
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A.O. Smith Signature GT15THR-199X3 Gas Tankless Water Heater
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A.O. Smith Signature GT15THR-199X3 Gas Tankless Water Heater

Sale price  $1,225.95 Regular price $2,229.00
Taxes included. Shipping calculated at checkout.
BTU Rating

The A.O. Smith Signature Series tankless water heater provides continuous, super-high-efficiency hot water for residential applications. Engineered with advanced scale prevention and integrated leak detection technology, this wall-mounted unit ensures long-lasting performance and reliable operation for busy households.

Suitable for both indoor and outdoor installations, this versatile model operates with natural gas or liquid propane and delivers a high flow rate capable of supporting large families. Featuring an ENERGY STAR certified design and an exceptional Uniform Energy Factor of 0.95, it significantly minimizes energy consumption while maintaining optimal water heating demands.

Key Features

Brand A.O. Smith
Model Number GT15THR-199X3
Type Tankless
Fuel Type Natural gas/Liquid propane
Power Source Gas
Installation Type Wall mount
Use Location Indoor/Outdoor
Maximum Flow Rate 39.7 L/min
Uniform Energy Factor 0.95
Height 113.3 cm
Width 41.9 cm
Depth 40.9 cm
Weight 47.2 kg
Water Connection Size 3/4-in
Vent Type PVC/CPVC
Display Type Digital
Scale Prevention Yes
Leak Detection Yes
ENERGY STAR Certified Yes
Safety Listing CSA safety listing

Highlights

  • ENERGY STAR Certified
  • Leak Detection
  • 15-year limited manufacturer's warranty

Compatibility

Compatible with natural gas and liquid propane fuel sources. Approved for standard residential homes and mobile home installations using PVC/CPVC venting with 3/4-in water connections.

Downloads

Frequently asked questions

Can this water heater be installed indoors and outdoors?

Yes, this unit is designed and rated for both indoor and outdoor wall-mount installations.

What type of fuel does this water heater use?

This model is compatible with both natural gas and liquid propane.

What is the flow rate capacity?

The water heater delivers a maximum flow rate of approximately 39.7 liters per minute (10.5 GPM).

Is this unit compatible with mobile home installation?

Yes, it is approved for use in mobile home applications.

Made with care

Great value

Elegant design

Quality materials

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.

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