Adding room thermostats will help you to preserve the temperature in the dwelling without using more energy to make it warmer than needed. Once the desired temperature is achieved the heating system is automatically switched off, economizing energy usage. TRV valves can be fitted to individual radiators to calibrate individual room temperatures. This is beneficial in helping keep certain rooms lower in temperature than other rooms within the dwelling.
One of the main reasons of expensive gas bills, and a big culprit behind energy inefficiency can stem from the age of your gas boiler. The average life-span of a central heating boiler is approximately 10 -15 years. The excellent energy efficiency ratings of newer gas boilers shows just how much better they are than older ones.
They are much more economical. Condensing central heating boilers can use from between 15% - 45% less gas. They are clever in the fact that they pull out heat from the exhaust system gases and actually make use of it to heat the water in your home.