Tools & Supplies Seed Starting Supplies Seedling Heat Mats
Seedling Heat Mats
Seedling Heat Mats
Heat mats can both increase germination rates and help you achieve more uniform germination by giving you control over temperature — one of the environmental factors most closely linked with germination. They also decrease production time by maintaining optimal root-zone temperature, thereby increasing growth rates in the early stages of a plant's life cycle. Johnny's offers heat mats in a range of sizes, from small to large add-on commercial styles, as well as thermostats and control devices for precise circadian regulation of bottom temperatures.
Filters
1 - 14 of 14
Done
Sale
Hydrofarm Single Outlet Thermostat Seedling Heat Mats
Precise temperature control for seed germination.
Precise temperature control for seed germination.
Sale
Hydrofarm Seedling Heat Mat – 9" x 19 1/2", 17 Watts Seedling Heat Mats
Warms seed flats for improved germination.
Warms seed flats for improved germination.
Sale
Hydrofarm Seedling Heat Mat – 20" x 48", 107 Watts Seedling Heat Mats
20" x 48" waterproof mat warms soil for optimum germination.
Warms seed flats for improved germination.
Sale
Hydrofarm Commercial Heat Mat – 21" x 5', 180 Watts Seedling Heat Mats
Stand-alone mat with 6 ft 120-volt AC power cord.
Maximize your germination area.
Sale
Add-on Heat Mat – 21" x 5', 180 Watts Seedling Heat Mats
Plugs into Master Heat Mat or another Modular Add-on Mat.
Maximize your germination area.
Sale
Redi-Heat™ Bench Mounting Bracket Seedling Heat Mats
Holds thermostat above plant material on your seedling bench.
Conveniently positions thermostat above plant material on your seedling bench.
Sale
Redi-Heat™ Heat Mat – 21" x 10', 300 Watts Seedling Heat Mats
21" x 10' heavy-duty heat mat for constant heat to root zone.
Increase growth and reduce production time by maintaining proper root zone temperature.
Sale
Redi-Heat™ Heat Mat – 21" x 5', 150 Watts Seedling Heat Mats
21" x 5' heavy-duty heat mat for constant heat to root zone.
Increase growth and reduce production time by maintaining proper root zone temperature.
Sale
Hydrofarm Seedling Heat Mat – 20" x 20", 45 Watts Seedling Heat Mats
20" x 20" waterproof mat warms soil for optimum germination.
Warms seed flats for improved germination.
Sale
Redi-Heat™ Heat Mat – 12" x 5', 150 Watts Seedling Heat Mats
12" x 5' heavy-duty heat mat for constant heat to root zone.
Increase growth and reduce production time by maintaining proper root zone temperature.
Sale
Redi-Heat™ Heat Mat – 12" x 10', 300 Watts Seedling Heat Mats
12" x 10' heavy-duty heat mat for constant heat to root zone.
Increase growth and reduce production time by maintaining proper root zone temperature.
Sale
Redi-Heat™ Four Outlet Digital Thermostat Seedling Heat Mats
Precise temperature control of up to four heat mats at once.
Precise temperature control of up to four heat mats at once.
Sale
Redi-Heat™ Heat Mat – 12" x 20', 600 Watts Seedling Heat Mats
12" x 20' heavy-duty heat mat for constant heat to root zone.
Increase growth and reduce production time by maintaining proper root zone temperature.
Sale
Redi-Heat™ Dual Outlet Dial Thermostat Seedling Heat Mats
Precise temperature control of one or two heat mats.
Out of Stock
Precise temperature control of one or two heat mats.
Out of Stock
1 - 14 of 14