Use manure to turn a cold frame into a hotbed
Warm up your cold frame with help from your friendly neighborhood horse. Horse manure will raise the temperature in a cold frame, and our automatic vent openers will keep the cold frame from over-heating. Cold frames are heated by the sun. As soon as you add another heat source (via manure or electricity) the cold frame is called a hotbed. In our latest video, Tricia shows how to position a cold frame in your garden and how to turn it into an electrically heated hotbed.