Combi Boilers
Most popular boiler type. Instant hot water. No tank needed. From £1,800 fitted
Get Free Quotes from InstallersWhat is a Combi Boiler?
A combination (combi) boiler heats water directly from the mains when you turn on a tap - no hot water tank needed. It's the most popular boiler type in the UK, installed in over 60% of homes, because it saves space and provides instant hot water.
Combi boilers are compact, efficient (90-95% efficient when A-rated), and ideal for small to medium homes with one bathroom. They eliminate the need for cold water tanks in the loft and hot water cylinders in airing cupboards, freeing up valuable space.
Combi Boiler Benefits
Instant Hot Water
No waiting for water to heat - hot water on demand
Space Saving
No tank or cylinder - frees up loft and cupboard space
Lower Installation Cost
Cheapest boiler type to install - from £1,800
Energy Efficient
Only heats water you use - no heat loss from tank
Quick Installation
Usually installed in 1 day
Powerful Performance
High flow rates from modern models - 15L+ per minute
Combi Boiler Costs
0% Finance Available
Pay from £50-£80/month with interest-free finance
Is a Combi Boiler Right for You?
✓ Perfect For:
- • Small to medium homes (1-3 bedrooms)
- • Properties with 1 bathroom
- • Homes with good mains water pressure (2+ bar)
- • Where space is limited
- • Flats and apartments
⚠ Consider System Boiler If:
- • Large home with 2+ bathrooms
- • Multiple people want hot water at same time
- • Low mains water pressure
- • You want powerful shower without electric pump
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