Using Adler Barber Cold Machine
I am using an Adler Barber Cold Machine on my 340 and am quite pleased with it. The customer support has been fine when I've called them (unlike Jabsco lately!!!!!). They could probably help you with sizing information. A/B also has hosted a refrigeration forum on HOW. For our size boat and general costal cruising needs they seem to be the brand of choice.Over the couple of years that I have observed this site, there have been serveral discussions from people that have installed their own systems. So, I would imagine someone will surface and be able to advise you better than I. Wynn FerrelS/V Tranquility