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Hotwired · February 8, 2013

I use an electric blanket and it holds my soil at 78F-80F really nicely on a setting of "8". I fold a twin blanket lengthwise, so it is 30" x 82". I lay it on a sheet of 6-mil plastic and fold the plastic over it so it stays nice and dry.

I find I can fit seven 11" x 22" trays on each folded twin blanket. The Sunbeam holds 78F-80F really close on a setting of "8". I modified the circuitry on mine to bypass the auto shut-off. You'll have to turn it off and back on every 12 hours, but it is a really economical heat mat. I bought several from the Salvation Army @ $5 each. You can buy a new twin size at $29 from Walmart.

February 8, 2013	#4
Hotwired Tomatovillian™ Join Date: Nov 2012 Location: Ithaca, NY - USDA 5b Posts: 241	I use an electric blanket and it holds my soil at 78F-80F really nicely on a setting of "8". I fold a twin blanket lengthwise, so it is 30" x 82". I lay it on a sheet of 6-mil plastic and fold the plastic over it so it stays nice and dry. I find I can fit seven 11" x 22" trays on each folded twin blanket. The Sunbeam holds 78F-80F really close on a setting of "8". I modified the circuitry on mine to bypass the auto shut-off. You'll have to turn it off and back on every 12 hours, but it is a really economical heat mat. I bought several from the Salvation Army @ $5 each. You can buy a new twin size at $29 from Walmart. __________________ Give a man a fish and he eats for a day - Teach him to fish and he eats for a lifetime.