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Ducting question?

1567 Views 4 Replies 4 Participants Last post by  beenthere
Put a new furnace in my garage. It is a upflow Lennox model. I was wondering if it is worth the effort to run ducting from the plenum down to the floor and then coming out at a 90 angle or just run a couple elbows out the top. It would be nice to have heat at floor level but not sure if it would just rise so fast it wouldnt do much good.
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For what ever dumb reason.
Some inspectors do consider a water heater with flame guard as a source of ignition.

All sources of ignition must be min 18" above floor in a garage.
A blower motor is a source of ignition.

Not enforced in all areas.
But that doesn't make it right not to raise it.
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