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- 7 Mar 2003
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Hello
As I've drained parts of my central heating system down a few times lately I'd like to refil the system with inhibitor. The plumber who installed the boiler wrote what looks like "TSS M1" on the log book. Is this a generic number or a specific type or can you mix and match different makes without problem anyway. My boiler is a vaillant Combi by the way.
thanks
Andy
As I've drained parts of my central heating system down a few times lately I'd like to refil the system with inhibitor. The plumber who installed the boiler wrote what looks like "TSS M1" on the log book. Is this a generic number or a specific type or can you mix and match different makes without problem anyway. My boiler is a vaillant Combi by the way.
thanks
Andy