Running a HM on my 18" WSM with Hunsaker Vortex. I'm guessing I have lower barrel leaks based on the graph.


 

D Estropelic

New member
Still runs like a champ and maintains temps. An hour without assistance from the fan is an indication of a leak tho but it's fine with me. :)

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I don't have a HM (yet.) You still have airflow through the fan, even if the fan is off. I've seen some temperature control fans with a metal slide to cut off airflow through the fan to extinguish the fire.
 
Pat, you can build fan only air control, or fan & damper air control for the HeaterMeter. Mine are all both fan & damper, there's relatively little air flow through when the servo closes off the air inlet completely. D doesn't specify what style he's using, from observations, I suspect the combination fan & damper assemblies are more common.
 

 

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