Homestead mailing list

["Lynn Wigglesworth" <lynnw1366 AT hotmail.com>]

> p.s. I'm still a little confused; without heat; how is the greenhouse much 
> different than the outside?  Is it just the >structure keeping off the 
> different precipitation?

It's insulated on 3 sides and has triple layers of plastic on the south roof 
and wall.  It's based on the Solviva greenhouse, which stayed above freezing 
all winter without any heat (in MA), mine isn't as tight, but it stays about 
20 degrees above outside temperatures at night. During a sunny day, it can 
be 20 degrees out, but  get up to 80 degrees in the greenhouse (that's when 
the roof vents open). I had a min/max thermometer set up for a couple of 
years, and the year-round temerature spread was 20-100 degrees...but most of 
the time, except for short periods of extreme temps,  it's 40-90 degrees.

Lynn Wigglesworth
Tioga Co. PA