| Combination or combi boilers are a special type of | | | | These boilers are easy to install, since they have |
| boiler system that is used to provide heat and | | | | no loft tank, pipework or hot water cylinder. The |
| hot water for a smaller home. They are popular in | | | | concept of the boiler is simple. They begin with a |
| homes today for their efficiency and space-saving | | | | typical unvented boiler but add a second heating |
| characteristics. They are compact enough they | | | | element for the instant hot water requirements. |
| can be placed on the wall in kitchen or bathroom. | | | | As long as the boiler is working, the household is |
| Their economical features come from the fact | | | | treated to unlimited hot water. The boiler must be |
| that they don't store hot water. They heat it as | | | | linked directly to the main water source. |
| required to use for heating or showering. | | | | |