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fluctuating draft with power vent + power gas
installed my own steamer, copying steamhead's combination of smith g8 and carlin power gas burner. Imitation is the best form of flattery.
I fired it up today for kicks. I'm trying to find a decent professional to come double check the burner setup before i call it quits for the winter. Anyway........
This has a Fields CV-4 power vent with outside air intake. The intake isn't connected yet. When firing, the draft fluctuates about .05" H2o, and i can't get it stabilized. The exhaust also has a pretty mean basslike hum, and i'm getting some type of pulsations.
I figure its because i used a 90 right off the boiler, and 2 more down the line. Not that that exceeds specifications for maximum flue length, but i'm getting some pretty mean turbulation going on in there I think.
anybody have experience with this? No matter what i do, i can't really get a stable draft reading over the fire, or at the breech. Damn power vents. I should have built a chimeny. I'm using Bacharach 125 digital analyzer.
Furthermore, i WILL consult a professional before i consider this set-upcomplete, and I have CO detectors, and I did stay at a Holiday Inn last night.
beautiful Conshohocken PA