The main advantage of gas central heating is that it is cheaper, per unit, than electricity. On top of this, gas boilers are getting more and more efficient. Replacing an old boiler with a new energy efficient one is pretty straightforward in terms of the installation process.
However, gas central heating is not without its problems. Gas prices continue to rise, and although they remain lower per unit than electricity costs, they are far from cheap. Another problem which faces some homes is that they are not connected to the gas grid. Getting connected can prove lengthy and costly. Gas central heating boilers should also be serviced regularly to ensure they are in good working order.