Combi boilers
A combi heats water on demand straight from the mains — no cylinder, no loft tanks, so it saves space and there’s no waiting for a tank to reheat. Ideal for flats and smaller homes with one bathroom, though flow can dip if two showers run at once.
System boilers
A system boiler works with a hot-water cylinder, storing a tankful ready to go — better for homes with more than one bathroom or higher demand. It needs airing-cupboard space for the cylinder but no loft tanks.
Conventional (heat-only) boilers
Also called heat-only or regular, these use a cylinder and tanks in the loft. They’re common in older, larger houses and can be the simplest like-for-like replacement there, keeping the existing setup.
Which one suits you
There’s no single best type — it depends on your home and how you use hot water. We’ll look at your setup and demand and recommend what genuinely fits, not just what’s easiest to fit.
Not sure which type is right for your home? We’ll assess your hot-water needs and space and recommend the best fit — with a free, no-obligation quote. South Manchester and Cheshire.
See our boiler installation service
