So I was down at our 'van over the weekend closing down.
Did the normal, vacuum pack all the soft stuff, move mattresses and cushions off of walls, keep all the cupboard doors open with a small bit of pipe lagging and a tray of cat litter in every room.
We have TVRs on every radiator in the 'van and they do have a frost setting. I've never used it but I may think twice about that now. When I arrived on the Friday night it was around 4deg outside. Darted in to turn on the boiler and get the heating going. Now whoever was there last (it could of been me
) set all the rads to the frost setting. When the boiler fired up I ended up pottering about a bit until I remembered to adjust the rad in the bedroom. Could of been a very interesting night if I hadn't
. Well the heat was coming through the radiator in that room which means the temp must of been below 5deg to trigger the TVRs to open up.
Our place is in Cornwall and it doesn't really hit low temps often. I always make sure the water is off but I get the site to drain down at the end of the season. I may start leaving the heating on frost protection now just in case we get a cold snap when we aren't there. Just concerned about how the boiler will react. Will it start heating the water up within it constantly all winter or does it only fire up when the pump feels a pressure drop due to one of the TVRs opening up?
I must admit I would like to start doing my own drain down. I came close to it this year. Not sure I trust the site to do a proper job. I did put a dash of antifreeze in every loo and sink/shower trap but was a bit of a waste as when the site guys come down they'll flush that away when they do their drain down. Maybe next year. Linkback: https://staticforum.co.uk/index.php/topic,760.msg2088.html#msg2088