[markg]

Is there any issue running the heat during the winter months for weeks at a time
I try to maintain 65 f temp.
Is it wearing on the systems

[Capt J]

No, the air conditioners are meant to run in the heat cycle. You might want to even run the heat higher such as 70 degrees. I would doubly make sure the engine room doesn't drop too low in temperature.

[markg]

you see no issue running 15-20 hours of the day

[AMG]

If you have a chilled water system with seawater intakes, just make sure you don´t leave the boat unattended. If a hose bursts you may sink the boat..

(I guess it uses water even in heating mode..?)

[Capt J]

Originally Posted by markg

you see no issue running 15-20 hours of the day

No, it's perfectly normal to run the a/c's for 15-20 hrs a day. It's the same principle it just reverses the freon inside the unit to create heat. Just make sure you clean your sea-strainers once a month, maybe more often. You may want to use some space heaters (the small brick ones with no exposed heating elements) to allow the heaters to cycle a bit more and in case the sea water system gets a blockage you won't lose heat entirely.

[K1W1]

Originally Posted by AMG

If you have a chilled water system with seawater intakes, just make sure you don´t leave the boat unattended. If a hose bursts you may sink the boat..

(I guess it uses water even in heating mode..?)

Hi,

Isn't that what the automatic bilge pumps are fitted for?

[AMG]

Originally Posted by K1W1

Hi,

Isn't that what the automatic bilge pumps are fitted for?

Aha, I haven´t seen them on crewed yachts. Just alarm systems...