Enervex 2-Hole Plenum Box for RS & RSHT 16"-20" Chimney Fan rich-black From your first fire of

From your first fire of the season to your very last

it can only be used outdoors

Not applicable

you may need this extension if you are installing an air inlet for your gas furnace because the supplied part may not be long enough

Customize the interior of your fireplace with this alternative style of decorative lining

Enervex 2-Hole Plenum Box for RS & RSHT 16"-20" Chimney Fan rich-black From your first fire ofPLX Plenum Boxes are used when installing multiple chimney fans on the top of a single or double wall steel chimneys. When modified, they can also be adapted to masonry chimneys. The plenum box has a collar that is designed to slide into the steel chimney for a tight fit. The box itself must be supported due to the weight. Features Material Standard plenum boxes are made of 14 GA 316L stainless steel. Pre formed fan attachments Can be designed for