- Aug 29, 2015
- 1,805
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I'm impressed that you would know about the 3 ft min distance. I had to educate a lot of contractors & engineers on that because as of the time I retired it wasn't actually addressed in the building code. The only way to find it was that the building code said all smoke alarms would also confirm to the National Fire Protection Association code which still didn't directly address it but said smoke alarms would be installed per manufacturers specifications which addressed the minimum distance from vents.
That said, if I remember right and I could be wrong but most manufacturers specs only mention distance from return air vents, not supply vents. Right or wrong I am still impressed.
I designed, installed and maintained fire and security systems for 35 Years....