I bought a couple of the Hydrofarm mats last week. UPS tracking says they will be delivered tomorrow. I am more concerned about burning my seedlings to a crisp with too much heat with the mats than not enough heat. I have some test seeds planted in dry medium to test the mats when they arrive. All I need to do is add a little water, turn the mats on; and sit back and observe. Since I don't need to germinate seed for my garden until mid December, I have plenty of time to experiment and get it right.
Ted
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