neil wrote: > Good point about "stack effect". Hot air does rise.... > Yeah but. The lower vent is about floor-level in the van. Punch a hole through the bottom of the van and that adds, what? two inches? Anyway, height is added /above/ the heat source in a flue to increase draw, adding depth below the heat source doesn't do anything useful. Add a 12-foot chimney if you want to see some flow up the flue. -- Mike "Rocket J Squirrel" Elliott 71 Type 2: the Wonderbus 84 Westfalia: Mellow Yellow ("The Electrical Banana") 74 Utility Trailer. Ladybug Trailer, Inc., San Juan Capistrano KG6RCR |
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