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 air conditioning, refrigeration and HVAC installers with an extensive range of FCU plenum boxes and deliver to our customers worldwide.

Our plenum boxes are designed to suit ceiling concealed ducted 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.

With over 180 different products to chose from, we supply plenums to suit most applications. Our advanced manufacturing techniques using both thermo-forming and CNC machining ensures that we remain the most competitively priced supplier of plenums on the market today.

All our supply air plenums are insulated as standard and the majority of our plenum boxes are manufactured using re-cycled materials.