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Ventrite VS Hofman

Steamhead (in transit)
Member Posts: 6,688
which I'd only use on the smallest systems- having mains no more than about 15 feet of 1-1/2" pipe or so.
Anything bigger moves up thru Hoffman #75 or Gorton #1 vents, on up to multiple Gorton #2 installations.
Anything bigger moves up thru Hoffman #75 or Gorton #1 vents, on up to multiple Gorton #2 installations.
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Ventrite VS Hoffman
Which is a better Vent Ventrite 35 or the Hoffman 4A? Will the Hoffman 4a vent the same amount of air as the Ventrite 35. I was thinking about switching to Hoffman 4A.
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