alternatasha a site to catalog random projects

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Posts Tagged ‘air valve’
main vents for steam heat
main vents for steam heat

These cracked radiator vents, labelled “USAV 880B,” were masking an even greater problem in the crawl space — no real air elimination vents on the mains.  The one that was located on the southern main, turned out to be an old Hoffman #43, a convector air valve, not a mains one.  Who knows how well […]