Name: Sandy B. Ford River Twp, Michigan UP (Zone 4b) (Zone 4b-maybe 5a)
Escuba, definitely check out the modifications that Dave, Shadygreenthumb and Shadytrake made to their HF greenhouses! (there may actually be others on that thread that I forgot about, if so, sorry!)
“Think occasionally of the suffering of which you spare yourself the sight." ~ Albert Schweitzer C/F temp conversion