These are some views of ducting between a ducon slab and a metal frame ceiling .
its important to allow an adequate void for ducting and other services. i would recommend a minimum of 150 mm.
This a typical finished connection to the metal frame.
These are 2 units recently installed in a house in Kinsale. They are in a thight attic space accessible by a step ladder.
This is a unit installed in a small plant room in a house in Donaghmore.
The reason i show this is that the more accessible the unit is the more likely the filters will be checked and cleaned. If the filters are not cleaned regularly (4-6 weeks) and changed annually then dirt will build up and cause a restiction to the air flow and wiil eventually dammage the fan motors. It is worth taking your time when choosing a location.
