Red or Blue copper pipe
#1
02-13-07, 05:11 AM
Red or Blue copper pipe
I'm thinking of installing BB hot water and is there a difference between them.Which one should I use.In a 2 story house.
#2
02-13-07, 02:06 PM
I believe the following is correct. Possibly local codes may vary as well.
Type K: domestic water below grade (green)
Type L: domestic water above grade (blue)
Type M: hydronic heat (red)
Type DWV: wastewater (yellow)
So, use red. Hard temper (i.e., not soft coil).
Type K: domestic water below grade (green)
Type L: domestic water above grade (blue)
Type M: hydronic heat (red)
Type DWV: wastewater (yellow)
So, use red. Hard temper (i.e., not soft coil).
#3
02-13-07, 02:37 PM
Use Type L ...
Xiph said type M is for hydronic heat, and that is correct, the baseboard elements use type M internally, inside the unit itself. BUT: don't use type M to connect them, use type L.
You might want to check with your local building code officer though before you start.
Xiph said type M is for hydronic heat, and that is correct, the baseboard elements use type M internally, inside the unit itself. BUT: don't use type M to connect them, use type L.
You might want to check with your local building code officer though before you start.
#5
02-13-07, 06:49 PM
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Copper Pipe
Type M (red print) is more than heavy enough for any residential, closed loop hydronic heating system. As Who said, the copper in the fin tube is, at best, half the thickness of type M. Type L (blue print) is for domestic where there is a constant replacement of corrosive materials & it will withstand higher pressure. The use of L is not only gross over kill on a hot water heating system but a lot more costly & it will actually reduce the flow rate (although you would never know it without some sensitive instrumentation).
#6
02-13-07, 08:30 PM
A-ha! I stand corrected, thanks Grady!
I guess though if there were an area of piping that might be subject to physical abuse, you could certainly elect to use a heavier pipe if you chose...
I guess though if there were an area of piping that might be subject to physical abuse, you could certainly elect to use a heavier pipe if you chose...
