As I install our new Wallas heater, I’m thinking of removing the original Red 
Dot that was wire cut by the PO—may need a new fan. At one point, I think it 
leaked coolant into the settee cavity. Cleaned up the spill and tightened hoses 
after we got the boat. I realize this heater offers steady “free” cabin heat 
while the engine is running, but with the new heater properly ducted, not sure 
if reviving the Red Dot is worth the effort. Removing leakage points and making 
a little space is appealing.

If you have coolant plumbed heater, do you use it? 

I’m assuming a coolant bypass is needed at the engine (Yanmar 3H 27). Tips & 
resources appreciated.

###### Peter McMinn

###### C&C 37, sv Sirius

###### Poulsbo, WA (thru April)
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