I'm looking to get a ducted air conditioning unit fitted in a utility room and have the hot/cold air ducted into the neighbouring rooms.
According to the AC company, I would need to make 2 or 3 150mm holes through an internal load-bearing wall:
I'll then create an insulated box and fit a slot diffuser on the front of it:
Fortunately, the joists run parallel to the wall.
It's fairly typical to core out 100mm holes for ventilation and soil pipes through load-bearing walls without much thought, but is there a rule-of-thumb to know how many holes, size of holes and spacing of holes are allowed before I would need to fit a lintel?
According to the AC company, I would need to make 2 or 3 150mm holes through an internal load-bearing wall:
I'll then create an insulated box and fit a slot diffuser on the front of it:
Fortunately, the joists run parallel to the wall.
It's fairly typical to core out 100mm holes for ventilation and soil pipes through load-bearing walls without much thought, but is there a rule-of-thumb to know how many holes, size of holes and spacing of holes are allowed before I would need to fit a lintel?