I'm sure the advice on the fridges is right in as far as it goes as all I have read indicates insulation
makes the biggest difference. However, you have domestic appliances
so can get new ones with a A++ rating. If I had them in my boat, which I can't do as mine are all built in with only limited opportunity for insulation
improvements, I would use half the power I currently use. Given that is probably half what you use, you might quarter your consumption
from the best new fridge/freezers.
I also have an ice maker (recently broken). It used a massive 150A/day@12v. Only used on the dock
because of that and now I am making enough ice in the freezer
, so I probably will sling it. A better way to go if you use a lot of ice is to build and ice maker module into an efficient freezer
. Will use virtually no extra power. A big chunk off your usage.
I would keep electric
power for cooking
. I'd love to get rid of my gas oven
. I worry about leaks
and the boat blowing up. I worry about running out and the hassle of filling up. I have maintenance
on the pipes and tanks
to do. I have space taken that could do other things and a bit of unnecessary weight too. Induction stove tops are very efficient and use less power than gas in diesel
generated equivalent. Modern insulated, fully sealed ovens are also pretty efficient. Use max power of 2.2kw and use maybe 60A@12v/hr, so maybe 0.2lt diesel
into the genset for an hour of oven
time. Not much. I'm think it is the way to go with a largish battery
bank and sufficient generation as we both have.
If it is all worth while is another question. I wouldn't do it unless things broke and needed doing anyway, but if you are living aboard
full time for many years to come then the savings will make the kit pay its way.
Getting the power use right down might mean you can move to solar
solely. Or it will also impact the genset size and when you replace it you might halve its output. That will have a huge effect on fuel
use, so multiplying the savings.
Good luck with the LFP project
. Mine are delivered, but not yet installed. I'm hope they will be good.