Passive heat
Concrete floors have enough thermal mass to retain the heat from the sun for a day or two. The key is getting the sunshine to actually heat it up.
From my browsing of google on the subject, carpet & wood covering the concrete will hinder it's abilities to absorb heat.
So today I'm trying something new. It's sunny so I opened all east & south facing curtains and rolled back 1 rug. That leaves 2/3rds of the floor (roughly) exposed to the sun.
I have a tiny problem with frosted over windows though. Not sure how to prevent that without getting a dehumidifier which will run nonstop.
Garden update: veggies are planted. I asked Heidi for a few seeds we didn't have. If she doesn't have them in her bank then the local nursery in spring will do. I'll plant the herbs directly in their pots in spring. I'll also start the pears here soon as well once I find an acceptable container for at least a 2 year growth.
