the problem comes not during the day when there may ( or may not ) be enough sunlight to warm the compost but at night when ther is no sun and the temperature drops. With the fluctuation in soil temp you will get sporadic germination .... nice thought though Ken. Maybe some sort of solar heat store could be used?
Failing that there is always the good old fallback of a parafin lamp & a steel sheet.
__________________ ntg Never be afraid to try something new.
Remember that a lone amateur built the Ark.
A large group of professionals built the Titanic http://grief-encounters.blogspot.com/ ================================================== The All New Home page of Hartshill Allotments full of useful bits http://www.hags.btik.com |