Spen Valley Terraces and the Systems Inside Them
Cleckheaton grew on textiles, and the housing still shows it: long rows of stone terraces built for mill workers, larger merchants' houses on the better streets, and estate housing filling in around Scholes and Gomersal. Each type behaves differently once the heating goes on, and the difference is not cosmetic.
The terraces have solid stone walls that take a long while to warm and then hold heat well. Systems in them are often running harder than anyone realises, and when a radiator has silted up the effect is immediate — the far end of the house never catches up. The estate housing towards Scholes is a different job: better insulated, quicker to respond, and usually a combi where the question is flow rate rather than radiator output.
None of that needs a bigger boiler. It needs someone to look at what the system is actually doing before recommending anything.