Put a damper on your oil heating bills

Burt Robertson, HVAC Marketing Manager

Invest in your energy future with the all new Field Oil Vent Damper (OVD) system. It works automatically to save fuel, improve comfort and keep the heat within the conditioned space. The Field OVD installs in the vent pipe after the draft control and before the chimney. It can increase annual fuel utilization efficiency (AFUE) by up to 2%. By automatically closing the damper at the end of each heating cycle like a fireplace damper, the OVD prevents drafts, improves comfort and reduces heat loss. The average boiler or furnace will use a minimum of 5% less fuel. Homes with taller chimneys may save 10% or more. A seven foot wiring harness is included with a pre-wired WMO-1 blocked vent safety switch. The WMO-1 shuts the oil burner off when a blocked vent condition is detected.

How it works 1.When the thermostat calls for heat, the vent damper begins to open 2. Within five seconds, the damper opens completely. 3. Two safety switches prove the damper is completely open before allowing the burner to fire. 4. When the oil appliance thermostat is satisfied, the vent damper remains open for approximately three minutes before closing. This allows the remaining products of combustion to safely vent up the chimney. 5. The vent damper remains closed until the next call for heat, preventing drafts, improving comfort, and reducing heat loss. Note: Not for use with direct vent systems, sealed combustion systems, or vaporizing type burners.