although i found the coorwoods heater, probably the longest lasting i have used, when they break they just break, it is normally due to you letting the thing frost up, or the gas regulator in the unit bunging up and not letting gas into the heater.
the ones from ebay are perfectly good from china, especially the silver ones, there really is no difference in build quality no matter what people say on here, i have been inside at least 6 different types.
when something goes wrong with these you cant normally fix it, so i dont really know the advantages of a uk supplier unless they would replace it if not frost damaged?
however at nearly double the price and a new chinese heater getting to me within 3 days i think i will save the £80, what i do is hang the heater by a hook and have everything in the van quick release so i can protect against frost damage, being pretty simple bbq type things not much else should go wrong (only had a gas regulator break on one once before).
this is not slating corwoods at all though as i have used them and there heaters and found them both to be excellent, this is just from a money saving point of view