Planning permission is not normally required for installation or replacement of a boiler, although if you live in a listed building you should check with your local planning authority.

If the boiler or heating system require the installation of a flue outside, then you may need planning permission. However, it will normally fall under permitted development.

Building regulations will apply if you want to:

• Install or replace a hot water cylinder

• Install, replace or alter the position of any type of gas, solid fuel and oil appliances (including boilers)

• Install a fixed, flueless, gas appliance
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However, if you employ a registered installer with the relevant competencies to carry out the work on gas appliances, they should be able to self-certify the work without the need for close involvement of building control.

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Using a high efficiency boiler could save you money and significantly cut your home’s CO2 emissions.