Satisfy a "virtual" bar dispute.

[Dsanduril]

We have one calorifier and tank on the starboard side and one shower too, so it doesn’t really apply to us, but...

We spent some time on a friend’s more luxurious craft and they had a pretty neat setup. Two tanks, one each side, with heat exchanger from the local side engine. There was a hot water circulator that came on automatically with either engine and circulated water between the two tanks. A small downside when running the engine for a short time, but otherwise it gave double the hot water storage from one engine. Worked pretty nicely (although I never had to do any maintenance).

[chrisr]

Originally Posted by Tupaia

Yes sorry - calorifier - water heater.


Interesting set up. Do you have 2 or 4 showers? Assuming either calorifier can feed either shower, is the water hot enough by the time it gets to the opposite side? How big are they?

we have 2 showers (1 in each bathroom)

each h/w system is 30L

there is some lag if eg starboard hull is drawing fm port hws, but not too bad. water is still piping hot when it gets there

cheers,

[chrisr]

Originally Posted by S D Sailor

chrisr -

We have one on each engine, too. So how did you install isolating valves? So frustrating to have limited capacity of hot water when running on one engine -
In addition the galley sink is heated by only the port engine & often we've used the starboard engine most of the day....same issue I guess with plumbing. We shower in the head corresponding to the side of the boat our most-used engine is on.
Does your plumbing allow for use of hot water from the opposite side of the boat?
Any suggestions would be appreciated....or thread 'title' if there are any other such threads on getting hot water to both sides of catamaran

the iso valve is on the cold water side of the hws. as you know, when you open a hw tap, cold water pushes into the hw tank to pressurise the hw line. if cold water cannot get into the tank, hw cannot get out.

yes the plumbing is such that hw flows to every tap on the boat, irrespective of which hull the tap is in and which tank the hw is coming from.

i'm not able to produce a schematic for you of how the lines run, but any plumber will be able to do it.

cheers,

[Tupaia]

Originally Posted by Bean Counter

Some folks have plumbed a diversion tap direct to the water tank until hot water comes through.

The ingenuity of folks is amazing almost akin to their ability to brew alcohol.