Combi Boilers

Combination boilers provide central heating and hot water on demand from one compact unit — no tanks or cylinders needed. They heat water directly from the mains when you turn on a tap or shower.

Key benefits:

  • Space-saving: Wall-hung and compact
  • Instant hot water: No waiting for stored water to heat up
  • Energy efficient: Only heat what you use, reducing waste
  • Generally lower installation and maintenance costs because there are fewer components to service
  • Simple to install and maintain

Best for:

  • Small to medium homes
  • Properties with limited space
  • Households with one bathroom or low simultaneous hot water demand

Considerations:

  • Performance depends on mains water pressure — weaker pressure can affect flow and temperature
  • Water flow rate may drop if multiple taps or showers are used at once