The RSVG was developed specifically for gas fireplaces and individual gas-fired boilers.
The chimney fan has a vertical discharge and an integrated monitoring system, consisting of a pressure control switch and a flow control. The RSVG is installed on top of the chimney and provides a controlled vacuum regardless of location, size or height of the chimney. The chimney fan can be used for both new and existing installations.
The RSVG is part of an exodraft system and must be connected to an exodraft EFC21 control. See below for matching accessories.