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Hi there all,
Just wondering where the 'benchmark number' comes from when filling in the paperwork after installing a boiler? Is it something that is sent through with the Gas Safe notification or do I need to get it from somewhere else.
Thanking in advance for any help
Matt
Just wondering where the 'benchmark number' comes from when filling in the paperwork after installing a boiler? Is it something that is sent through with the Gas Safe notification or do I need to get it from somewhere else.
Thanking in advance for any help
Matt