Tjernlund HS4 Gas Sidewall Power Venter Fan - High Efficiency Ventilation for Furnaces & Boilers - Perfect for Home Heating Systems & Commercial Applications

Used for Side wall venting commercial natural gas or LP fired equipment including: boilers, water heaters and unit heaters.  All models feature the new UC1 Universal Control and a diaphragm Fan Proving Switch safety interlock which will shut down heating equipment if a venting malfunction occurs.  UC1 Universal Control features include; adjustable pre and post-purge settings, LED Status/diagnostic indicators, Fan Prover switch monitoring.  Interlocks with any 24-120 VAC burner control circuit and also includes "dry" contact actuation option.  Easily interlock multiple appliances with our MAC-Series multiple appliance controls. Allows for a significant reduction in vent pipe diameter to save on costly materials and labor.  Built-in adjustable damper also allows regulation for maximum combustion efficiency. .

Side Wall Vent Systems save time and money and are excellent for electric to gas/oil, renovations, new construction or for replacing deteriorated chimneys.

Side wall venting saves costly materials and labor on two, three or more story runs.

Proven safety interlocks assure proper exhaust, a feature conventional chimneys do not offer in today's homes and buildings.

Includes UC1 Interlock Control and PS1505 Fan Prover Switch

Pair with Tjernlund VH Series Vent Hood Terminations