Boiler gas usage Leigh homes record tends to jump in November for a simple reason: the weather turns, the boiler runs for longer each day, and every fault that stayed hidden over summer starts costing money. In Leigh and Wigan, many homes still have older radiators, mixed pipework and boilers that were last serviced before the previous winter. Put those together and the meter climbs quickly. Most of the extra gas is avoidable. It usually comes down to three things: how the sy