With winter upon us, the nights are growing colder and you can no longer avoid turning the central heating on. If your central heating is in good condition, this will be a seamless process, but if your boiler is feeling its age, there is every chance that you might run into problems in the very near future. So how can you reduce your risk of ending up with no heating as winter approaches?
In a wet system, central heating boilers heat the water that circulates around your network of radiators. I...