Use the Enervex PDS-1 Proven Chimney Fan Draft Switch for MFD in conjunction with a mechanical fireplace damper (MFD) and give your chimney additional draft control. The PDS-1 is used for insufficient draft protection, so if an unsafe draft condition occurs, whether this is caused by mechanical or electrical failure, the switch will shut down the heating appliance.
- Protects against insufficient draft
- Slim profile
- Used with gas or oil fired appliances
The Enervex PDS-1 Proven Chimney Fan Draft Switch for MFD has a differential pressure switch. The differential pressure acts via diaphragm against the force of the setting spring on the microswitch. The pressure switch operates without any auxiliary power, allowing for full system protection. Save time and money when you order today.