Join Date: Aug 2003
Location: Long Island, NY
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The hot water heater on my boat broke and i have ordered a replacement, which is due to arrive today. The heater uses engine coolant to heat the water.
The hoses currently on the system are 7/8" The original heater had threaded connections. The new heater has 5/8" barbed connectors. The existing hoses have '1998' printed on them and have a some soft spots, etc. and I want to replace them.
I need to connect the 7/8" heat exchanger hose to the 5/8" heater connection. The heater connection also needs to make a 90 degree turn. I searched for an hose barbed elbow, 5/8" on one side and 7/8" on the other, but I can't find one. So I guess I need a barbed reducer, 7/8 to 5/8 (which I can find).
1. Does anyone have a source for a barbed elbow, 7/8" on one side (or even 1") and 5/8" on the other side?
2. If I use a reducer, should the hose be 7/8" for the long run, or 5/8"? Does it matter?
3. Should I just use 3/4" hose and make it fit the 5/8 and 7/8"?
4. Have I missed anything?
Deep Blue C, 2002 C&C 110
Mt. Sinai, NY
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Last edited by BarryL; 06-09-2010 at 12:55 PM.