It's not always easy to know how to get all the rooms as warm as you want, when you want.
Think of your heating as like sitting in a warm bath without the plug in, trying to keep it at a constant temperature. You can keep warm with the hot tap running, but if you put a plug in you can slow it down or turn off the tap. So think about where you're losing heat as well as how you put heat into
Make sure you're well insulated. If you haven't already done so, get cavity wall and loft installation.
Make sure your controls and settings are right for what you need. Improve your heating controls; for example, fit thermostatic radiator valves (TRVs) on each of your radiators.
Look for ways of generating your own energy.
Or if you're interested in a particular improvement click on the following links to find out what it could do for your bills:
If you live in the Bristol area, why not talk to our Energy Efficiency advisor? They can provide advice and services that help you give your home a comfortable temperature, balanced with an understanding of the cost of doing this and the choices you can make.