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Separation of Air and Exhaust-

ced48 Member Posts: 469
So, it looks like I shouldn't separate the air intake and my exhaust vent more than 15" because of "pressure zones" issues. I wanted to dump the concentric and pick up my air from around the corner, maybe 12 feet away, 4 feet lower, in the eaves. Lochinvar says I could do this if I exhaust thru the roof, but not the sidewall. Doesn't make any sense to me, can anyone explain?


  • ced48
    ced48 Member Posts: 469
    From Under the Eaves-

    or soffit, not from them-
  • kcopp
    kcopp Member Posts: 4,394
    On an earlier....

    thread we discussed concentric venting and cross contamination. (some call it reversion)

    I think this is a bigger problem than some think...including myself.

    They do want you to keep the vents on the same side...just a good separation AND at different levels.

    Around corners you can get more pressure drops than if running up a chimney and just a draft. Imagine getting a wind sucking air out the intake at the same time the boiler is trying to exhaust.