Enervex 2-Hole Plenum Box for RS & RSHT 16"-20" Chimney Fan rich-black you may need this extension

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

From your first fire of the season to your very last

Hassle Free Installation – Standardized Sizing

Not applicable

80 Wattage 1465 W Voltage 120V AC AMPs 12

Enervex 2-Hole Plenum Box for RS & RSHT 16"-20" Chimney Fan rich-black you may need this extensionPLX 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