I put the heater to it's first test on Saturday night.
Was about 4-5c at night.
Kept it on it''s lowest setting through most of the night but then woke up during then night and turned it up 2 more fan speeds higher as the double bed in the Starcraft was a little cold but I think we may need to get a woollen underlay to solve that problem.
So I am very happy with the heater. The kids love it and like to stand in front of it in the morning when getting changed. The floor of the caravan is quite cold but I guess that is because of there only being a wooden floor and no insulation. Some thick socks when walking around in the caravan solved that problem for now.
I could't really hear the "ticking" of the heater.
Battery level got down to 12.4v after the nights use of stereo/lights but charged up again when the sun came out.
I ran the heater on constant heat output (instead of thermostat mode).
I would recommend this heater and seller for anyone considering buying one for their caravan. Installation is pretty straight forward too.
Will give it an ultimate test for 3 weeks using it every night in July.
Any questions, let me know
Looks like a good spot, where was this campsite?