| Central heating system... How does it work? | | | | Your programmer contains a time clock as well as |
| Pretty much every customer we go to seems to | | | | a couple of time switches (channels) that change |
| feel they don't fully understand exactly how their | | | | the hot water and central/heating on and off at |
| heating system operates. This, I think, is due to | | | | pre-selected times of day (or night). |
| the lack of an general user instruction leaflet. | | | | When your central heating is switched 'on' from |
| There will be a boiler manual, a programmer | | | | the programmer, your boiler will be turned on and |
| leaflet, thermostat manual, although no overview | | | | off simply by either your "room thermostat" and |
| of how they all work collectively as a central | | | | the "hot/water cylinder thermostat". Each |
| heating system.. | | | | thermostat will turn the boiler on when heat is |
| A typical, ordinary modern domestic heating | | | | required, then turn it off again when it's not. |
| system has the following key elements: | | | | The diverter valve or zone valves are electrically |
| - Boiler | | | | operated valve which switches the hot water |
| - Programmer | | | | going from the central/heating boiler to the |
| - Room thermostat | | | | radiators or hot water cylinder depending on |
| - Hot water cylinder thermostat | | | | which thermostat is actually calling for heat. In the |
| - Radiators | | | | event that both are calling for heat simultaneously |
| - Hot water cylinder / storage tank | | | | the valve will assume a mid-position, sharing the |
| - Diverter valve / Zone valves | | | | flow amongst cylinder and radiators. The diverter |
| - Pump | | | | valve 'mid-position valve' or zone valves for an s |
| Your central heating boiler provides 2 individual | | | | plan type system |
| features. In order to heat your hotwater tank | | | | And that's it. Easy. |
| and to heat your property. | | | | |