Locolised Water Heaters
- Single Point
- uses electricity or gas
- Sited directly above the appliance
- Usually inlet controlled
- Swivel Spout - delivers water
- Instantaneous Electric Showers
- advisable power is MIN 9kW
- Connected directly to the mains
- Wired directly from the Consumer Unit
- Flow Governor - handles variations in mains pressure
Centralised Water Heaters
The temperature of the water is inversely proportionate to the flow rate
- Multipoint Water Heater
- no electrical controls
- Gas Burner situated below a Heat Exchanger
- Gas Valve opened by Pressure Differential Valve when water flow occurs
- Thermal Stores
- Combined Primary Storage Unit CPCUs
- the same as the Thermal Store
- All compnents are contained within the boiler
- Hot Water Storage Vessel is required
- Combination Boilers
- combination of a multipoint and a sealed central heating system
- Diverter Valve gives priority to the Hot Water
