How to Make Your Own Heat Mat for Germinating Plants
- 1). Select two pieces of drywall that are cut to the appropriate size for your needs. This could be only large enough for a single tray, or large enough to cover an entire counter top.
- 2). Arrange rope lights -- small bulbs encased in clear tubing -- over the first piece of drywall. You may zig-zag them or spiral them, as long as you have even coverage of lights over the drywall.
- 3). Secure the lights to the drywall with plastic wire ties and small screws. Use enough ties that the lights stay where you put them.
- 4). Lay the second sheet of drywall on top of the lights. It will absorb the heat from the lights and gently raise the temperature of your seed trays from the bottom up.
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