You are looking at the business end of the FPB64 hot water heater. This unit allows long hot water showers (something possible with the huge fresh water capacity these boats have). This system is a refinement of what has served us well over many years.
There are three sources of heat:
- Two heat exchanger coils, plumbed in parallel, heated by the Kabola diesel boiler.
- A single large heat exchanger using waste heat off the engine which is plumbed in series with the Kabola circuit (this also provides heat for the interior).
- Dual AC heating elements, each with their own breaker, for use in loading the genset and when tied to shore power. Each of these heating elements are 2000 watt capacity.
The heater cylinder is heavily insulated as are the domestic hot water supply pipes. And the capacity is a generous 14 gallons/55 liters. Combine heat source features with 1700 gallons/6500 liters of fresh water, the ability to catch water off the deck, and a substantial watermaker and you can see how long hot showers can be a daily occurrence (as they are on
Wind Horse ).
Posted by Steve Dashew (October 18, 2009)
This entry was posted
on Sunday, October 18th, 2009 at 6:02 am and is filed under FPB Series Notes.
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Comments or Questions?
October 19th, 2009 at 7:21 am
Hi Steve:
When dockside and tied to shore power the dual AC heating elements can be used to provide hot water. With the Kabola off, will the hot water in the water heater provide heat to the Kabola loop thru the heat exchangers in the hot water tank to heat the interior of the boat?
Regards
Pete
[Reply]
Steve Dashew Reply:
October 19th, 2009 at 9:42 am
Hi Pete:
Good point which I forgot to mention. The dual heating elements in the hot water cylinder can be used with shore power and the generator to heat the boat via the Kabola diesel boiler circuit. They will provide enough heat to take the chill of in temperate climates. Of course, the reverse cycle air conditioning can be used as well in water temperatures down to about 45F (7C).
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