Item Number: GP9670
Seedling Heating Mat (One Flat Size)
Increase Your Seed Starting Success
- Internal insulated wiring for enhanced safety. Heavy duty multi-layer construction
- Warms root area 10-20 degree fahrenheit over ambient temperature to improve germination. Provides constant temperature to improve vegetable, plant, herb, and flower seed germination
- Perfect for seeding, germination, homebrewing, and pet enclosures terrariums, such as those used in reptile, rodent and arachnid
- Dimensions: 10"x 20.5"; Watt: 17.5W
- Length of Power Cord:5.90ft
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Growing Zone for

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Since 1976, we've served our customers at every stage of growing. Please contact us at any time. We are happy to support and assist you.
Shipping Information
Shipping Information
Shipping Weight: 1.1 lb
Dimensions: 20.5"L x 9.25"W x 1.0"H
Features
Features
- Use for Seed Starting
Characteristics
Characteristics
Use Instructions
Use Instructions
Useful Information
Useful Information
Guarantee
Guarantee
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Plug it in and forget it. Used under my mini-greenhouses or under seed trays you just plug them in and forget them. They maintain a good soil temperature for germination and early growth and seem to be water-resistant when you make a mistake, as we all do. Coupled with my Sun Blaster lights (also reliable) I can get good vigorous seedlings even though I have no greenhouse, just a woodwork shop with skylights.
Fermwarps and other heating elements have been hard to come by thanks to increasing interest in homebrewing due to COVID-19. Got one of these in pinch to use on a 14 conical. Works like a dream! Brought the temp of 11.5 gallons of soon to beer up to desired temp in about 8 hours, maintained that temp once it was reached.
Sure it works great for seed starting too!