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- 13 Sep 2026
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Its a glowworm ultimate 3c. I am not at home at the moment but will check the pressure gauge when i get home. It was serviced 3 weeks agough and he said everything was fine.What make and model is the boiler and is there a pressure gauge on it?
If so what is it showing?
As said a limited amount of combi boilers can be run unsealed but it's unusual