Seedling heat mats

Heat mats for starting seeds in a cool apartment, by size and watts.

Close-up of small seedlings in a seed-starting tray

2 of 7 seed starting match

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Hydrofarm Jump Start Seedling Heat Mat, 20 x 20 in

Type: Heat mat
Where it goes: Kitchen counter
Shelf or under a cabinet
Floor
Height, fully grown: Not listed
Seedlings at once: Not listed
Power use: 45 watts
Thermostat included: No

Made for: Warming one or two seed trays on a counter, shelf or floor.
Drawbacks: No thermostat included.

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Hydrofarm Jump Start Seedling Heat Mat, 48 x 20 in

Type: Heat mat
Where it goes: Shelf or under a cabinet
Floor
Height, fully grown: Not listed
Seedlings at once: Not listed
Power use: 107 watts
Thermostat included: No

Made for: Warming up to four standard 10 × 20 in trays at once.
Drawbacks: No thermostat included. 48 × 20 in.

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