With that amount of watts from your panels you could probably stick another ,3/4 battery’s on that system a bit further along which would give you twice as much run time especially when there’s not as much sun about ??
Oil filled radiator would be good with that, invertors sometimes struggle with anything that takes a surge of power like those fan heaters Or kettles etc it should have a continuous rating and a surge rating on the spec somewhere ??
Basically the two panels will charge the battery’s and the white box will convert the voltage upto 240, it will have a 3 pin socket or some other form of outlet I n that you can either just plug your heater into or you can create a loop to run several sockets, the invertor mppt controller and all the other gubbings are built in the white box and as long as your heat source does not draw more than 2000 watts which is the size of the invertor you will be fine mate, you can also charge the battery’s with a normal charger if you have no sun ??
Same as that mate never been a problem, last 10 year has got a bit harder with the lack of cash about but still never had a problem finding work and if no one would employ me I have set up my own company and employed myself ??
If you want to run a house on solar and a Tesla battery it will be connected to the mains so the battery will charge at night when electric is cheap if it doesn’t get enough sun but a fully charged Tesla battery will run a house for upto a week so it would still be a lot cheaper, there are loads of vids on the tube, old traction battery’s from forklifts etc are also excellent for running on solar, the gov don’t want you to be self sufficient mate so make it seem a lot harder than it is every new house should have solar and a battery bank but that would take people into self sufficiency which i
Wind turbines and boats are a bit of a no go due to the amount of noise and vibration you get through the boat, the panels should charge the battery’s enough during the daylight hours to run you through the night especially as you are asleep for a lot of it so apart from the fridge and freezer there is minimum draw ??
I haven’t got panels on yet everything else in place I,m looking at about 4 x 100 amp panels to start with then add more if that’s not enough further down the road, should definitely be plenty in summer, plus when I’m in my birth I’m hooked up to the mains anyway ??
I got 440 ah of battery not got my solar set up yet but I can run the fridge,freezer,tv,water pumps, lights and a couple of apple chargers for about 12 hrs before I need to run the engine for an hour to top them up ?
If she has a disability and drinks from the furry cup as well I recon she has a free pass to anything, don’t be surprised to see her in a pair of welly’s presenting countryfile next month ?