A common question we get asked quite regularly is “what type of boiler” or “what type of central heating do I have”. There are three main types of boiler, a regular boiler, a system boiler or a combination boiler. Whilst this is a quite an easy question to answer, we have laid out some details and information below to help you.
The regular boiler or open vented boiler, is controlled by the following components.
- Either a one 3 port valve or two 2 port motorised valves
- Pump
- Room thermostat
- Hot water cylinder thermostat
- Programmer
A system boiler has the following components
- Either one 3 port valve or two 2 port motorised valves
- Pump is within the boiler
- Room thermostat
- Hot water cylinder thermostat
- Programmer
A combination boiler heats the heating and hot water within the boiler so doesn’t have any of the components listed above except maybe the motorised valves if the heating is “zoned”.