water regulation
British standards 8558
1/9
| Term | Definition |
|---|---|
| water regulation | British standards 8558 |
| direct system | -contains back boiler -contains hot water immersion heater |
| in-direct system | -single feed ,self venting -double feed with hot water heating cooler |
| instantaneous hot water heaters | -single point heaters -multipoint heaters |
| combination boiler | -combi boiler |
| suitable materials | -copper -bronze -stainless steel |
| open vented direct | no coil |
| open vented indirect | has a coil |
| single feed system | separates secondary water from primary (heating) water |