Vara
Well-Known Member
As part of the engine refurb, I need to disconnect and drain the engine heating coil, any reason why I shouldn't continue to use the calorifier in immersion heater mode?
Calorifier, engine heating coil
- Thread starter Vara
- Start date
Tony Cross
Well-Known Member
None at all as far as I know. I've done that myself and it's all still working. 
Vara
Well-Known Member
None at all as far as I know. I've done that myself and it's all still working.
That's what I thought but usually when I post such ideas somebody has a friend who did it and either suffered life threatening injuries or burnt their boat to the water line.
David2452
Well-Known Member
All you are doing is changing the cyl from indirect to direct so none at all, I would leave the heat exchanger coils open so no pressure could build in them, though that is probably the over worrier in me. If you have relied on engine heat and not used the element in the past or if you are unsure it has one I would also check that it has a secondary overheat thermal trip.
macd
Well-Known Member
That's what I thought but usually when I post such ideas somebody has a friend who did it and either suffered life threatening injuries or burnt their boat to the water line.
How right you are. I've been using mine in immersion heater mode, empty of engine coolant, and no sooner had I done so than the Greek parliament decided to tax boaties out of existence. For this, my heartfelt apologies to all.
The calorifier, however, suffered no ill-effects.
MM5AHO
Well-Known Member
Mine has two coil circuits, one of them unused all the time, just blanked off at the cylinder (plastic caps so unlikely to have pressure issues on heating / cooling)
Tony Cross
Well-Known Member
Vara
Well-Known Member
Thanks for all the replies, I'm happy to report that disconnection occurred with no problems allowing me to get on with manly tasks fettling the engine while my crew could get on with hair and dish washing in hot water and other womanly
pursuits.
pursuits.
