Quite a few have EHU. The host will advertise this in the book. You are only supposed to stay for just one night, but I have been asked loads of time.."Just for tonight" indicating the host isn't bothered at all. We stayed in a pub last week and the Landlady was telling us that they had a big RV in for one night that stayed all week!!
I think @Paul and Kate were talking about parking up out of the way when the pub may well be full. We are 7.4mtrs long and 2.4mtrs wide as well and when we phone ahead we often ask if we will fit in. The book says whether they accept under or over 30ft and some state PVC only, but we have been caught out by the "We accept 5 x >30ft" only to find the carpark is the size of a postage stamp, so we now google maps the pub to see the CP first. Since then, not really had any snags.if delivery trucks can get there , so will you