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Old 13-12-2016, 20:48   #16
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Re: Closed circuit hot water heat? Anyone tried it?

There's a company in California called Warm Floors. If they're still in business, find them and read how it works. Not a great idea for a boat. Why reinvent the wheel?
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Old 14-12-2016, 08:34   #17
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Re: Closed circuit hot water heat? Anyone tried it?

Forced air diesel heater is a much simpler option than retrofitting under floor heating. Impact on resale value will be significant.

You can also heat water using a hydronic version.

This what we use on our Liberty 458 in the PNW. Toasty warm
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Old 14-12-2016, 09:00   #18
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Re: Closed circuit hot water heat? Anyone tried it?

Quote:
Originally Posted by leftbrainstuff View Post
Forced air diesel heater is a much simpler option than retrofitting under floor heating. Impact on resale value will be significant.

This what we use on our Liberty 458 in the PNW. Toasty warm
This was our choice too. Took 2.5 days to complete but this included some grp work to mount the heater on the side of the cockpit locker. We used a new standard vehicle webasco kit and just added the through hull exhuast vent, saving over the marine version. This also circulates fresh air from the outside rather than just heating the inside of a boat so helps keep the boat fresh, because you do need to ventilate and then ventilate again.

If you are already adding fresh water plumbing add a calorifier with a 1kw water heater and this solves your hot water problem for showers and washing.

Completely wrong time of year to buy, but if you look out in the Spring you might find a diesel heater like the Dickinson for the cabin which would be good on a cold winters night.

Now in addition to heating you are going to need insulation in the ceilings and saloon sides. Cheap closed cell foam camping matts will do if the budget is limited.

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