The CFLO100 Small Heat Recovery unit can be used for: Bathrooms En Suites Shower Rooms Wet Rooms Bedrooms Kitchens Its recommended not to use more than 30mtrs of duct and 4 Internal Grilles when using HRU100 recovery unit. Will provide up to 75% heat recovery. This Heat Recovery Unit is compatible with 100mm diameter ducting. Eliminate mould and control condensation Trickle/Boost 245W x 160H x 310L + 50mm both sides for spigots The unit comes fitted with a 2-speed motor, and provides continuous trickle ventilation with a boost option. (2 Way Controller Needed for Trickle and Boost) Up to 100m3/h FID capacity. The unit provides control of condensation andodours. Heat Recovery up to 75% Only 10w on trickle Low Noise 20 dBA Easy to unscrew lid Energy Efficient AC Motor Easy to install Specification Sound Pressure Level Boost – 30 dB(A) @ 3m Trickle – 20 dB(A) @ 3m