Residential Gas-Fired Water Heater – Tankless – Comfort Series UGT-199
Documentation
Warranty*
12 years
on heat exchanger
5 years
on component parts
Warranty*
5 years
on heat exchanger
5 years
on component parts
*From the date of installation. For more specific warranty details including exceptions, consult the owner’s manual. Certain conditions apply.
Benefits
ENERGY EFFICIENT
Energy factor (EF) up to 0.96 (UGTC models). 
CAPACITY TO SUPPLY
Continuous hot water simultaneously to multiple plumbing fixtures.
SPACE SAVING
Tankless units are about the size of a carry-on suitcase. With no holding tank necessary, they can help you save up to 16 square feet of living space compared to a conventional water heater.
FOR HIGH DEMAND APPLICATIONS
Use multiple units in junction with an easy connect cable for single use applications.
HIGH TEMPERATURE OPTION
For commercial use only, you can add a specific controller to increase water heater temperature up to 185°F (85°C).
Engineered especially for condensing technology (UGTC models). Inner Aluminum Concentric Venting (UGT models). Easy field adjustment during installation.
TWIN PIPE ADAPTOR
Available for PVC/CPVC venting (for UGTC models only).
MINIMUM ACTIVATION FLOW RATE
A flow rate as low as 0.40 GPM (1.5 LPM) will permit to achieve the activation level for the heater to start up.
TEMPERATURE LOCK FUNCTION
Prevents accidental or unauthorized changes to water temperature.
ENHANCED SCALE DETECTION
Lowers the possibility of serious, long-term damage to the unit.