80 82 bottom temperature gap between heat mat and seed trays.
How to make a homemade heat mat.
73 75 degrees f soil temperature.
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.
To control heating times use a thermostat or timer.
It has to be easy to construct even by inexperienced users.
Here s a simple diy heater for seed starting that will cost less than the flexible ones and should last for decades.
Noticing that i would have to drop a lot of dough for heat mats i decided to go with this plan instead.
Of particular interest is the temperature comparisons of the store bought heat mats and the diy plan.
The only drawback is the cost.
Bottom temperature gap between heat mat and seed trays.
For gardeners everywhere this was a great invention as it gives the seedlings a quicker chance at success.
An average size mat 36 x 19 ranges from 20 60.
You have to make sure that the heating mat is safe and won t cause an electrical shock or a fire hazard.
You don t want to spend so much money on this homemade device.