Enervex RS 9" Axial Vane Chimney Fan btu320000 and the flue damper must

and the flue damper must be blocked open

The most sophisticated patio heaters for the 21st century patio is here

3 cm x D 18

Ventis blower

Flex-Form Install Collar ( 3 boxes)

Enervex RS 9" Axial Vane Chimney Fan btu320000 and the flue damper mustThe RS Chimney Fan is specifically designed for applications where efficient operation, low noise level, low energy consumption, variable speed and compact design are of utmost importance. It should be installed at the termination point of the chimney or stack section and can be mounted on masonry or metal chimneys. It is typically mounted in the vertical position, but may be sidewall vented as well. The fan assures a negative pressure is maintained