hot water heater vent test

[MasterPlumbersKeymaster]

thanks to all for help on my tankless heater
Quick question on the vent in my tanked gas water heater. I once saw a plumber test the vent by placing a match near or under the flue where the vent attaches to the top of the heater. He said something about testing for a draft or something. How is this done and what should you look for??????

[SelgasParticipant]

He is testing to ensure the flue gases are being pulled correctly up the flueway to vent to atmosphere – it is often refrred to as being a smoke test as some tradespeople use smoke matches. Me? well I use a specific draft gauge – that way I know when it is right.
It is a task that is by far better left to the experts – as a faulty flue can have disaterous consequences – DON’T play about with gas appliances or their components – get the assistance of a suitably qualified gasfitter to ensure yours and everyone else’s safety is paramount.

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Selgas Services Ltd
Craftsman Gasfitters, Plumbers, Electrical Service Technicians

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