ESSENTIAL KIT - Hot Water on Tap
Most larger yachts will have a calorifier on board, so whenever the engine has been running there will be hot water for showers and washing up.
If you are buying new or upgrading, consider fitting a twin coil calorifier with an internal immersion heater so you can heat it from a second source such as an Eberspacher Hydronic wet central heating system.
We have a 35L twin coil Hotpot calorifier from ASAP-Supplies. The 1500w immersion heater is wired via a programmable timer (B&Q) to operate either from shore-power or when the GenSet is running. The second coil is fed from the eberspacher diesel heater so we get hot water as a by product of cabin heating.
NOTE: If the standard pipe layout wont work for you, ASAP can arrange to have the calorifier made to your own specifications so that all pipes and heater are suitably placed for your vessel.
It takes about 30 minutes to get the water piping hot and 35L is just enough to support 4 showers as long as no-one is too greedy. The timer just makes sure you don't waste money when on shore power.
Make sure you order a spare immersion heater element, O-ring and blanking plug, as the UK fitting size is difficult to find abroad. My element blew after 9 years service, it took just 15 minutes to swap over to my on-board spare and we were up and running again. Also buy a large purpose-designed socket and bar for the immersion body, I got mine from Toolstation, as this makes it very easy to change over..