You need to figure out fridge budgets for both fridge and freezer
. It comes down to cubic feet. The other issue is insulation
. You need more is a safe assumption and I've never seen your boat. Finding ways to improve insulation
will make those amp hours stretch. On a boat NOTHING uses more power than a fridge. Making water
would come second.
Cost of the fridge is nothing compare to cost to operate and the problem of food
going bad. In that sense the brand of fridge you buy means almost nothing before you do the math. A good solar
setup is important! A wind
gen is also important too. I don't choose to anchor
in the wind
but can't anchor
in the shade all that often. Solar
is a good thing and on a cat is easy to install.
Using shore AC powered fridges works for Trawlers that have large engines and move regualrly. While you could install one on a cat, I don't think it's going to fit you all that well.
Personally, we have an inverter and a small one at that. Inverters waste a lot of power and make you think you can live like you do on land. The energy loads and your ability to make pwer is NOT like the shore based power company. You'll never have a lot of electricity so start thinking that way.
Bottom line: So how big a fridge do you really need? Also- "ain't no cheap
inverter". They suck the joy out of you with engine noise
. Solve the fridge problem and your power problems go away! It's really about the power you need more than the brand of frisge you buy.