Welcome to Linwood Plenums - the home of air conditioning plenum boxes

Welcome to Linwood Plenums - the home of air conditioning plenum boxes

Linwood Plenums is a market leader in the supply of air conditioning plenum boxes. Based in the UK, we supply refrigeration and HVAC installers with an extensive range of FCU air plenum boxes and deliver to our customers worldwide.

Our plenum boxes are designed to suit ceiling concealed fan coil units (FCU) made by the leading split system (VRF & VRV) air conditioning manufactures. These include Mitsubishi Electric, Daikin, Toshiba, Fujitsu General, Mitsubishi Heavy Industries (MHI), Samsung, LG and Hitachi

Our best seller - an insulated multi spigot plenum box

We fabricate plenums to allow air to discharge from the side of the plenum box

Fitting a return air plenum box to many ducted air conditioning units has always been difficult - not with Linwood. This innovative design uses a filter installation frame that allows the filter to be withdrawn from the side or where space is limited, by quick release of the whole plenum box. Please note that air filters are not supplied