Never found the need for heating at night even in sub zero temperatures, most vans are very well insulated.
I think the OP was referring to the UK hence my response.You need to experience somewhere a bit more sub zero!
We, as do other Funsters, take our MH on ski trips.
Failure to leave the heating on WILL render your water system unusable in Alpine Winter conditions!
If she's on HRT she shouldn't be getting flushes ... I do sympathise though ... I went through it for 7 years (mine have never totally gone away) and by dingo they are horrid, horrid things .... one minute you can be freezing the next you feel like you've fallen into a volcano!SWMBO is on HRT, so some times we need the heat on, other times it's open all windows and no bedding
If you are getting the Webasto dual-top which we have, it has two electrical settings, 1000W and 2000W plus the diesel of course which from memory is something like the equivalent of 5000W+ so if you crank that up you can almost cook things with it! We find the 1000W setting gives nice quiet background heating when on EHU.We had webasto, diesel heating on our previous van . It was brilliant.
So much so we are fitting it to our project Pug, the PVC.
Neither of us sleep in anything at home, and prefer not to when away too.
This new webasto that we're having can also work on electric. I think I'm right in saying so. So if on the rare occasion we have hook up, we can still have heat.