You have to make sure that the heating mat is safe and won t cause an electrical shock or a fire hazard.
How to make a homemade heat mat.
These are mats on which you set your pots with seeds and they provide a small amount of heat to keep the soil temperature warm.
Your heating mat has to be big enough to help all your seeds and seedlings.
Diy light heat mat surface temperature.
Commercial heat mat surface temperature thermometer placed on top of soil.
For gardeners everywhere this was a great invention as it gives the seedlings a quicker chance at success.
73 75 degrees f soil temperature.
An average size mat 36 x 19 ranges from 20 60.
It has to be easy to construct even by inexperienced users.
80 82 bottom temperature gap between heat mat and seed trays.
To control heating times use a thermostat or timer.
Bottom temperature gap between heat mat and seed trays.
Here s a simple diy heater for seed starting that will cost less than the flexible ones and should last for decades.
The only drawback is the cost.