I just bought my home in July this year. I live in Northwest Indiana, on Lake Michigan. We can have some fairly cold winters.
It has a crawl space with vents. The crawl is about 3 1/2 feet below ground. The furnace is installed in the living area, not the crawl. I have installed r-19 between the floor joists and have insulated the duct work (a foil faced insulation designed for duct work).
The plumbing is PEX and has a Vanguard "Manabloc manifold". The piping is exposed in the crawl.
Question: Since I have insulated the heat ducts (thereby reducing a source of heat) should I be concerned about the plumbing freezing in winter?
Is PEX more, or less susceptable to freezing than copper? Is there a simple way to insulate the piping?
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