[Talbot]

I think Jack has missed out that the keel cooler illustrated in my last post, does not use a pump to circulate the freon, thus uses less electrical power than those water cooled versions that rely on a pump, or air cooled that need a fan. Dont ask me how it works cause I dont know, but suspect that the compressor is pumping the refridgerant round through the cooling cools and also through the keel cooler.