First post .Be gentle I bruise easily
Just had Rheem split system in Tues. The 40 yr old LP furnace had a rotten
piece of fiberglass insulation underneath it in the bottom of the hole .I threw it out . There was another black piece of insulation tacked to the bottom it was funky too but since it was nailed in I left it, So they come out to install and I forgot to replace the one I threw out! They did not say anything.
Did I screw up? and now will lose 30% 0f heat out the house foundation?
How much insulation is needed down there? Thanks