I need a central heating programmer that has an input that makes the on time auto setting depending on outside or inside temperature or both. Can one be bought for <£200? There are complex ones for industrial buildings and offices but too expensive for me.
I want to enter the time when the building is entered and left and let the programmer work out how early to turn on the heating. It takes about one hour to heat up by 4C so after days of non use in 0C weather that is a 5 hours heat up time. But at end of heating season 30 mins is enough.
Needs 2 channels to heat 2 zones. Uses the same boilers for both but pumps/valves turn on and off each zone. The second zone heats up faster so ideally would like that one to cut in later but also be auto settable.
Superficially these Danfoss weather compensators seem like they might do the trick but can’t understand the info they give there http://heating.danfoss.co.uk/Content/84A57DA7-9FE7-4F5C-9F39-72E93943A0C7_MNU17521086_SIT313.html Also looks expensive by the time all the right parts of the system are bought.
I want to enter the time when the building is entered and left and let the programmer work out how early to turn on the heating. It takes about one hour to heat up by 4C so after days of non use in 0C weather that is a 5 hours heat up time. But at end of heating season 30 mins is enough.
Needs 2 channels to heat 2 zones. Uses the same boilers for both but pumps/valves turn on and off each zone. The second zone heats up faster so ideally would like that one to cut in later but also be auto settable.
Superficially these Danfoss weather compensators seem like they might do the trick but can’t understand the info they give there http://heating.danfoss.co.uk/Content/84A57DA7-9FE7-4F5C-9F39-72E93943A0C7_MNU17521086_SIT313.html Also looks expensive by the time all the right parts of the system are bought.