Hello I'm installing a HVAC system that is supplying a mixed use occupancy. A dwelling unit, and a very large garage. These occupancies are separated by a fire wall as required by the local code. It seems to me, that I need a fire dampers on the supply and return ducts as they are passing through the firewall, but do I need fire smoke combination dampers? Of course they are much more expensive, and as far as I can see it's a fire wall, not a smoke barrier that is required between these occupancies.
- posted
18 years ago