Boilers
Combi vs system vs regular boiler — which one suits your home
About 80% of UK boiler sales are combis — they heat water on demand and need no separate cylinder. System boilers suit homes with multiple bathrooms or where simultaneous hot-water demand is common. Regular (heat-only) boilers fit older properties with existing hot-water cylinders and cold-water tanks. Bedroom count, bathroom count, and simultaneous-use patterns drive the call.
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