natrual gas

  1. edronline

    New NG hot water furnace: what's a correct PSI and also how to un-airlock a radiant floor

    Got a new hot water furnace installed a few weeks ago (Weil-McLain EVG220, natural gas) along with a new expansion tank in a very old but well insulated and tall 4 story (including basement) house here in the north east US. The techs filled the system to about 14.5 psi, and while the third/top...
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