Thanks, Marcus, I was sure that someone here would have the answer for me. It looks like a pretty simple installation.
There are a couple of companies that make these units. I had one that was made by heater craft. Hamiton marine sells them. It has a variable speed 12V blower and you tap off your engine the same as a hot water heater. You should be able to get plenty of heat out of your engine. I think they are 28,000 btu and 40,000 btu. If you can route a discharge hose to your windshield it will also work as a defogger.
HTH
John
I have installed a hydronic heater made by heater craft. I selected "there are others available" the 4 zone heater which has a 4 position 3 speed blower switch. It runs on 12 volt and has a heat exchanger that draws heaat from the diesel engine cooling system . The install was involved due to compartments in a pacific seacraft which required big hole drilling for the ductwork, but the end result is major comfort for my family. The 38 HP Yanmar provides an excellent heat source and warms the water in a few minutes which means warm air for the vessel. This is a DIY task with basic tools and a basic understanding of engine cooling and 12 volt power systems. Heater Craft customer support was excellent. I have used this product for 3 years in upper Michigan and can find no fault with it.
