Which Wabasto, and plumbing in

[Cornishkiwi]

Hey all

I'm looking to get a diesel water heater to heat up a calorifier and 4 small radiators. The boat it would be heating is a 44ft yacht so theres a little distance to travel. When working it out the wabasto thermo top pro 120 looks like it will do the job putting out 12kw however is a pricey heater and may be over kill. The webasto thermo top c only puts out 5kw but seems to be a common choice and is a lot better priced so was wondering if this would still suffice??? Or if any one has any other recommendations??

Also when it comes to plumbing it in I dont know whether to link from main water tank with a non return valve to an accumulator tank then to the heater itself so once the systems filled and working it wont then draw any more water from main tank but if have snags can fill it as please. Or is it better to just have a separate tank next to it and keep that system separate??

Cheers

[sailormed]

Can you use the existing waterheater tank with its engine and shore power heating system?

[Cornishkiwi]

The calorifier will be twin coil so will have engine to heat it up if motoring but if on shore power or at anchor will want to use the wabasto to heat it up. Currently there is nothing.

[Cornishkiwi]

Basically I want to achieve this and wondering I'd the Heater will be up for the task on a 44ft boat. And also the bits in pencil the wabasto heating return, I'm unsure of, whether it needs an accumulator tank as its before the heater pump, however once that system is full the non return valve will keep it from taking any more water. But is it just complicating things and i just stick a separate little header tank on for the radiators.

[bcboomer]

Take a look at the Planar hydronic heaters. Less money and, in my experience, cheaper and easier to maintain.

[Cornishkiwi]

Will have a look thank you