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Heat MatsClick to Zoom In
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Specifications at a Glance:

  • Warms root area 10 to 20 degrees above ambient temperature
  • 19" x 9" mat is 20 watts
  • 20-3/4" square mat is 45 watts
  • 48" x 20" mat is 107 watts
  • 6' power cord

Heat Mats

Place Your Order Here

Heat Mat, 19" x 9" - Item #34-357

$38.95
Qty.   

Heat Mat, 20-3/4" x 20-3/4" - Item #39-421

$69.95
Qty.   

Heat Mat, 48" x 20" - Item #34-356

$110.00
Qty.   

Bottom Heat Jump-Starts Your Seedlings

These Heat Mats speed germination and stimulate root growth by keeping soil at about 70º F. Here's a clever extra — instructions and growing tips are printed right on the mat, so you can't lose them. 9" x 19" mat holds a standard seed flat. 20-3/4" square mat holds two standard seed flats. 48" x 20" mat holds 4 flats. All sizes have 6-ft power cords.

  • Heat Mat provides consistent bottom heat for fast germination and vigorous root growth
  • Can be used indoors or in greenhouse
  • Available in three sizes
  • Please note: If you are ordering this item as a gift, there is a picture of the item on the outside of the package

REVIEW SNAPSHOT®

by PowerReviews
Heat Mats
 
4.5

(based on 21 reviews)

100%

of respondents would recommend this to a friend.

Pros

  • Solid construction (9)
  • Extends season (8)
  • Attractive (3)
  • Weather proof (3)

Cons

    Best Uses

        • Reviewer Profile:
        • Do-it-yourself (13), Novice (4)

      REVIEWS

      Reviewed by 21 customers

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      Displaying reviews 1-10

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      5.0

      Love this!

      By Kathi

      from Minnesota

      About Me Do-It-Yourself

      Verified Buyer

      Pros

      • Extends Season
      • Seedlings sprout faster

      Cons

        Best Uses

        • Starting plants in spring

        Comments about Heat Mats:

        I start my plants every spring in my basement which is the colder part of my house in the spring. These heat mats raise the temperature just enough so that the seedlings sprouted faster. I had much better results than I have ever had.

         
        5.0

        Seedling Heat Mat

        By Estelle

        from Vail, CO

        About Me Do-It-Yourself

        Verified Buyer

        Pros

          Cons

            Best Uses

              Comments about Heat Mats:

              The small seedling heat mat is just large enough for two APS trays. The mat is contructed well and helps to heat the ambient air around the seed trays. We saw our tomato seedlings appear in 5 days and are very happy with the mat. I would buy this again when we want to increase our seedlings.

               
              5.0

              Worked Great!

              By sjc

              from N.W. Montana

              About Me Novice

              Verified Buyer

              Pros

              • Extends Season
              • Solid Construction

              Cons

                Best Uses

                  Comments about Heat Mats:

                  The heat mat helped some of my seeds sprout in less than a week. I was surprised. It's a great aid for gardeners who want to start seeds early indoors.

                   
                  3.0

                  more powerful than advertised

                  By capsaicin

                  from Cambridge, MA

                  About Me Do-It-Yourself

                  Verified Buyer

                  Pros

                  • Simple instructions

                  Cons

                  • Too powerful

                  Best Uses

                    Comments about Heat Mats:

                    I have found that with small seed sprouting pots the soil temperature at the surface can get over 90 degrees with an ambient air temperature of about 68, while the soil closer to the bottom of the pot may be well over 110. With a humidity dome on the temperatures got much hotter - up to 110 at the surface. I would imagine that such temperatures could be harmful to some varieties. By leaving the humidity dome off and not leaving the mat on for long periods I can keep the temperature in a reasonable range, and my seedlings are thriving. You could also experiment with different amounts of insulation between the pots and the mat.

                     
                    5.0

                    Great!

                    By kwol

                    from Chelmsford, MA

                    About Me Do-It-Yourself

                    Verified Buyer

                    Pros

                    • Solid Construction

                    Cons

                      Best Uses

                        Comments about Heat Mats:

                        We had germination in 7 days for our eggplants and 3 days for our greens! Seedlings are looking great so far.

                         
                        3.0

                        GOOD HEATING .

                        By CLAIRE

                        from PATCHOGUE NEW YORK

                        About Me Do-It-Yourself

                        Verified Buyer

                        Pros

                        • GOOD CONDITION FOR TRAY
                        • Weather Resistant

                        Cons

                          Best Uses

                            Comments about Heat Mats:

                            SLOW STARTING BECAUSE BASEMENT TOO COLD.NOW SEEDS ARE WORKING BECAUSE IT WAS MOVED INTO KITCHEN

                            (1 of 1 customers found this review helpful)

                             
                            4.0

                            Love my Heat Mat

                            By Ms. Kim

                            from Winchester, VA.

                            About Me Do-It-Yourself

                            Verified Buyer

                            Pros

                            • Solid Construction

                            Cons

                              Best Uses

                                Comments about Heat Mats:

                                I started my seeds in the garage in February in zone 6 region which is still a very cold time of year here. The Heat Mat was a great addition to my seed starting processand since I was able to set it up in the garage with my grow light it kept my germinating seeds warm and all the mess out of the house. My seeds germinated quickly and are strong healthy plants. I really love everything about the mat except the price I felt like it was a little pricey for it size, product directions and size.

                                 
                                5.0

                                Just what I needed

                                By Daffy the Dill

                                from Salem, IL

                                About Me Do-It-Yourself

                                Verified Buyer

                                Pros

                                • Easy to set up
                                • Solid Construction

                                Cons

                                  Best Uses

                                    Comments about Heat Mats:

                                    Just the ticket, especially for those tender young seedlings.

                                     
                                    4.0

                                    Keeps plants and worms warm

                                    By Gail

                                    from Wyoming

                                    About Me Do-It-Yourself

                                    Verified Buyer

                                    Pros

                                    • Extends Season

                                    Cons

                                      Best Uses

                                      • Warms roots
                                      • Warm worm bed

                                      Comments about Heat Mats:

                                      This is my second mat, my worms have been kept warm thru 2 winters now (to -30) by placing the mat under their bed, and covering the whole thing with a comforter, in our shop, that is heated only part time. This second mat is for my plants, that will be in my unheated greenhouse. I also used the first mat in the greenhouse over another winter to keep some pots warm, (so it is 3 years old) up on a bench, they were also covered at night with a sheet. The mat it a bit expensive but worth it and so far I am very happy with how long they are lasting.

                                       
                                      5.0

                                      Heat Mat

                                      By greenhouse girl

                                      from oregon city, or

                                      About Me Do-It-Yourself

                                      Verified Buyer

                                      Pros

                                      • Extends Season
                                      • Weather Resistant

                                      Cons

                                        Best Uses

                                          Comments about Heat Mats:

                                          I have not opened this product as yet,it is still to cold and wet to work in the greenhouse. From past experience with this same product I expect no problems and was pleased with the way it help the seeds germinate. [...]. I will continue to use your business for my greenhouse needs.

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