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Post by smileypete on Nov 25, 2016 0:15:59 GMT
Why not simulate the load of a fridge with the existing inverter and batts, and see how you get on? The mains fridge will average about 20 watts, by running at say 100 watts for 20% of the time. So maybe plug 100w load into a timeswitch, set it to come on say 1 hour in 5, and see how the batts cope with the inverter running that load 24/7. If this is too much hassle then sure go for a 12V fridge/freezer or consider selling the inverter for a more efficient one, once you have finished the fit out. BTW you can still buy old style 100W light bulbs as rough service/heavy duty bulbs from the likes of poundland: www.poundworld.co.uk/dept/light-bulbs-lights_d01844.htm
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Post by phil70 on Nov 25, 2016 0:33:43 GMT
We have an under counter larder fridge at 110ltr volume and a under counter freezer at 80 ltr volume. Admittedly we are on Shoreline but when we cruise we have never struggled for power, 300 watts of solar do help. It's so rural where we are that shopping everyday is not an option, we live out of our fridge and freezer so Hurrah for Mr Shoreline. Phil
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Post by smileypete on Nov 26, 2016 9:25:11 GMT
On some boats, wonder if it makes sense to run LED lights and saloon sockets off a small 500W PSW with <0.5A standby, then use a heavy duty 3000W PSW for kitchen and utility.
Gotta be very careful about multiple supplies in one location; decent earthing (& bonding), RCDs, and good separation is needed.
For quaysider if the existing inverter draws 2 amp on standby that's 50Ah/day which is going to take 1.5 hrs to put back with a 35A charger!
Given that a 12V fridge definitely looks more appealing! Though with decent solar setup there's no need to run the gene for summer and hopefully a part of spring/autumn.
A cheap 1 or 1.5kW MSW or PSW would probably run a simple non electronic fridge no probs but there's small risk there with MSW I s'pose.
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