Thanks for feedback D-Hailsham...
some more info:
1. The boiler is a Grant Vortex Outdoor Combi 90V.3
2. I was hoping it was near-pipe position - simplest to sort
3. About 6 inches - the ground floor has a new dampcourse/raised floor
The ground floor also has a fireplace & log-burner...
I bought an old house with an oil central heating system & exterior boiler which I have been advised is too big for the space it feeds - the new room thermostat is positioned on boxing in over pipes (H &C)
The ambient temperature is COLD being close to the water table.
The radiators have...
