Heating a House on a Halifax Hillside
Halifax is built across steep ground, and that has a real effect on how homes here hold heat. Exposed properties on the higher ground towards Mixenden, Illingworth and Norton Tower take considerably more wind than sheltered streets down in the valley, and wind stripping heat off a solid stone wall is the difference between a system that copes and one that never quite catches up on a cold week.
It shows up in a particular way. The house heats acceptably in mild weather, then in January the far radiators never get properly hot and the boiler runs almost constantly. That is usually one of three things: a system that was sized for a warmer scenario than the house actually faces, radiators that have lost output to internal sludge, or a boiler cycling because flow around the system is restricted.
Diagnosing which one it is matters, because they have completely different answers. Swapping the boiler on a house whose radiators are half blocked will not fix a cold bedroom, and we would rather tell you that before you spend the money than after.