Hi All,
Pressure gauge has gone on my boiler. Which side of the isolator is the pressure gauge? i.e. If I shut off the heating valves under the boiler do I draing the heating or the boiler. I suspect the boiler but just want to check!
Thanks!
Pressure gauge has gone on my boiler. Which side of the isolator is the pressure gauge? i.e. If I shut off the heating valves under the boiler do I draing the heating or the boiler. I suspect the boiler but just want to check!
Thanks!