TD Series
Duct Furnace
Designed for use with existing systems for any ducted air application, the TD Series duct furnace is the latest addition to the tubular product line. Coupled with Sterling's "In-Shot" burner technology, TD units are built for superior durability, reliability and performance. Units are available in 7 sizes (100-400 MBH) and offer industry leading effciencies with a limited 10 year heat exchanger warranty.
QVSD
Separated Combustion
The model QVSD separated combustion indoor duct furnace is designed to be installed in mildly hostile environments where dusty, dirty, and mildly corrosive conditions exist or high humidity or slightly negative pressures prevail. The burners, pilot and flue system are enclosed within the unit. The entire combustion process is literally unaffected by the atmosphere in the space where the unit is located.
QVED & QVES
Power Vented
The QVED (bottom burner access with ceiling mount) and QVES (side access, non-combustible floor mounted) are power vented indoor duct furnaces. Both models offer high effciencies that achieve annual fuel savings of up to 25% over conventional duct furnaces. Also featured is the factory installed power venter and sealed flue collector that controls combustion and excess air during on cycles.
