Q. How do I know whether my central heating system needs to be power flushed or not?
A. Your boiler will be 'noisy', your radiators will only produce heat from the top and black water will show from the outlet valve when you bled your radiators.

Q. What are the benefits of installing a high efficiency boiler?
A.  High efficiency boilers are much more economical to run, there is less gas usage with a higher output which will save you money on running costs.  Should you wish to sell your property then a high efficiency boiler scores high on a EPC report (Energy Performance Certificate) which is a good selling point!