Water heater device, what is it, is it mandatory?

[GILow]

Originally Posted by Calif.Ted

That's the high point on the engine coolant circuit and it's a place to bleed off any air when replacing the coolant. I had a similar set-up on a previous boat with the water heater mounted well above the engine.

+1 This.

[Bill O]

Originally Posted by Calif.Ted

That's the high point on the engine coolant circuit and it's a place to bleed off any air when replacing the coolant. I had a similar set-up on a previous boat with the water heater mounted well above the engine.

+2 as an air bleed.


Bill O.

[Gregg927]

Thank you for the reply. I like your concept; however, the upright tubing is simply a tube with no spring or valve aspect. From the other responses, I believe it is a high point filler point for the system. I will finish the project tomorrow with the filling operation. I appreciate your consideration.

[Calif.Ted]

Your welcome,
One of mine came from the factory with a butterfly valve and it was in a lazzarette with poor access. You must have better access if you want to fill the cooling system thru a 1/2 pipe.

[capt jgw]

Originally Posted by Calif.Ted

Your welcome,
One of mine came from the factory with a butterfly valve and it was in a lazzarette with poor access. You must have better access if you want to fill the cooling system thru a 1/2 pipe.

That's why I put in a header tank. The cap just barely peeks out from under the lazzarrette so I can easily fill it.

[RaymondR]

Water softener??

[Gregg927]

You got it!

[mpkoontz]

Looks like it might be a heat trap -

Used to keep the hot water from backing back into the feed line (and beyond).



MK.