The heating-on-all-day argument

uk.d-i-y orthodoxy that you pay for lost heat, and having the place hot 24/7 just means more heat loss, so must be more expensive.

warmer walls have less moisture in them, and walls which are dryer conduct less heat, and so there is less heat loss if the heating is on all day. This sounds like claptrap to me, except in clinical trials he reckons to have 160 votes in favour of his system being cheaper versus four votes against. Then again, they are Telegraph readers.

I have 17 zones of Underfloor Heating, these work by temp set back ... i.e. no on/off ... just set the temp for any time lost during the day.

It makes for a very comfortable arrangement ... and works with the slow response time of UFH but massive 'area' and thus the heat storage