Quote:
Originally Posted by Tom Tallon
So we are now in a cold spell whatever Brigand says.
How do you plan your morning heat up of the house?
1. Do you keep the thermostat at 21/22 degrees and timer to come on say at 6.15 am but switched off overnight.
2. Do you have heating on constantly but switch it down to say 17 degrees on going to bed. In the morning raise it to 21/22 degrees.
There is a body of opinion among CH engineers that the second is more effective and cheaper because its better having a hike from 17 to 22 in the morning than a traumatic lift from say 9 degrees to 22. Also the house will heat up much quicker.
Any views?
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I'm a CH engineer and it all depends on your house - whether it is well insulated or not. If you have a high heat loss then your boiler is going to be running more if on constant, so obviously it will be using more gas.
Heating your heating system up from cold doesn't use any more gas than just boosting a warm system. In reality it'll take 10-15minutes for your heating system to get hot. Using 15minutes of gas in full mode would be less than using 2 hours of gas in a lower mode.
It's hard to say as every home with vary due to insulation, boiler type etc. Without doing tests yourself over a period of a month you cannot judge it. We have a programable roomstat set to 16oc in the night, and our boiler will very rarely come on at that. So if your home is dropping to 9oc then you must be losing a lot of heat!
Hope that is of help.