Hot-water systems · System boiler and unvented cylinderSystem boiler and unvented cylinder
System boiler and unvented cylinder
Stored hot water at mains pressure.
Hot water is stored in a sealed cylinder at mains pressure, giving strong flow to several outlets at once. Ideal for homes with more than one bathroom.
- Storage
- Sealed cylinder
- Pressure
- Mains
- Several outlets
- Yes
- Needs
- Annual servicing
What it is
A boiler heats water in a pressurised cylinder fed directly from the mains.
Good for
Flow
Strong showers in more than one room at once.
No loft tank
Frees the loft.
What to weigh up
Space
Needs room for the cylinder.
Servicing
Unvented cylinders need regular checks by a qualified engineer.
Planning a bathroom?
Tell us about your room and what matters most, and we'll help you make the most of it.
Start your project briefIllustrations are concepts, not measured plans. Click any picture to enlarge it.