Mitchell-DIY-Guy
Well-Known Member
That's pretty much what we have in new construction around here. I don't know if those dimensions are exact but they are directionally all correct. The one obvious deficiency is the 36" pan, usually they are just big enough for the circumference plus a little, of a water heater. Not much more...and the drain is really small, like a 1" or ¾" PVC. Not sure they actually test them since I've seen failures in new construction--leaks in the pans.If I wrote the code I would require a 36” pan for the standard 50 gallon heater with a 2” pvc drain piped to the exterior.
I’d require a light and a 120v outlet within 6’ of the heater.
48” walk way to and around the heater.
A large/strong pull down stair or standard framed staircase.
All the reasons to put a water heater in the attic surely make sense but try telling that to someone who has to deal with a failure, and the crazy cost of insulation replacement, drywall repair, etc. If the leak and damage severe enough, then there's carpet or floor replacement, maybe furniture too. I can pretty much assure you that the homeowner won't be agreeing that a HWH should be in an attic.
In the last four homes I've owned, including this one, two were in garages, and two were in basements. Any kind of failure of a water heater in those locations? Big wup as they say. No problem. Open the garage door and sweep out the water or let it go to the basement floor drain. Easy to get a replacement in the garage or the basement--I've done it repeatedly, usually with just a small amount of help. I generally replace my water heaters at the first sign of impending doom...I'm not one of those guys who will come here when it's 35 years old looking for parts sources. Usually replaced at the 10 year mark.