A.O. Smith GT15THR-199M Gas Tankless Water Heater 39.7 L/min

Name: A.O. Smith GT15THR-199M Gas Tankless Water Heater 39.7 L/min
Brand: A.O. Smith
SKU: 5014825255
Price: 1137.95 USD
Availability: InStock

$1,137.95 $2,069.00

Taxes included. Shipping calculated at checkout.

The A.O. Smith Signature Series condensing tankless water heater delivers efficient, on-demand continuous hot water for indoor and outdoor installations. Featuring an integrated recirculation pump with custom scheduling options, it ensures faster hot water delivery during peak household demand hours.

Engineered for enduring performance, this unit includes a heavy-duty single stainless steel heat exchanger designed to eliminate internal welds and boost reliability. An integrated digital control display provides real-time status monitoring, scheduled recirculation controls, and clear error diagnostics.

Key Features

Brand	A.O. Smith
Model Number	GT15THR-199M
Series	Signature Series
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 Location	Indoor / Outdoor
Mounting Type	Wall Mount
Heat Exchanger Material	Stainless Steel
Water Connection Size	3/4-in
Vent Type	PVC/CPVC
Display Type	Digital
Height	85.9 cm
Width	41.9 cm
Depth	40.9 cm
Weight	47.2 kg
ENERGY STAR Certified	Yes
AHRI Certified	Yes
Safety Listing	CSA

Highlights

Integrated recirculation pump with programmable dual-schedule settings
Single heavy-duty stainless steel heat exchanger design
Flexible indoor and outdoor wall-mount installation
Built-in digital display for diagnostics and schedule controls
Field-convertible between natural gas and liquid propane

Warranty

15-year limited warranty

Downloads

Frequently asked questions

Can this water heater be installed indoors and outdoors?

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

Can this unit run on propane?

Yes, this model operates on natural gas and is field-convertible to liquid propane.

How does the built-in recirculation pump operate?

The integrated pump allows users to configure two separate recirculation schedules to deliver hot water during peak usage times.

What type of venting is compatible with this model?

This condensing water heater is compatible with PVC and CPVC venting materials.

Made with care

Great value

Elegant design

Quality materials

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.

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.