Ever so slightly less in my experience. Even if it used more, I'd still go hot. It's much nicer.
Is that what you use jonny
We heat our water overnight in ibc tanks - then pump into vans water stays hot all dayDarran
Neither,I use these, http://www.ebay.co.uk/itm/Home-Garden-Portable-Travel-Hot-Water-Heater-Immersion-Element-Portable-Reheater-/400372810487?pt=UK_TravelTickets_Accessories_RL&var=&hash=item5d381442f7They are suspended in the tank 1 in from the bottom I use 2 per 1000 ltr tank running them from midnight to 6 am gives me 35 degrees - now everything is sexy up inside the unit I now 'stir' the water for 1/2 hr every 2 hours using by booster pump.Sunday I do eight hours as water is cold from sitting there Friday, Saturday and Sunday. Rest of the week the water remains warm even when topped up so in theory if I kept heating it I could get to 50 + degreesI have found anything over 20 degrees is fine for what I want hot water forDarran
That's good value when you add on that its keeping the van frost free as well.
That's why I originally went down that route, it works well.Now the vans are parked inside at night I don't have that problem Bear in mind that the colder it is the longer you may need the heaters on for to reach the same target temp.But I still like some warmth to the water to keep all the hoses flexible etc..Darran