On 14 Aug 2006 03:25:41 -0700 someone who may be "mkkbb"
wrote this:-

I have a solid concrete floor which we are ripping up and going to
re-lay.

In addition to operating the underfloor heating at a lower
temperature to radiators, so that people can stand on the floor,
underfloor heating also has different time characteristics. It can
be turned off earlier than radiators (because the floor provides
thermal storage) and will probably need to be turned on earlier.
Thus it should be on a separate time control, have a room thermostat
and ideally the pump and mixing valve should be arranged to
compensate for outside temperature. All this is no great hardship as
controllers are available to do all of this.


--
David Hansen, Edinburgh
I will *always* explain revoked encryption keys, unless RIP prevents me
http://www.opsi.gov.uk/acts/acts2000/00023--e.htm#54