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16" Inch Joist Spacing

Designed to be installed between the joist bays under an existing floor, UnderFloor mats can be used to add heat to a floor that has already been installed. UnderFloor mats are manufactured for joists that are either 12” or 16” on center. They are very DIY friendly. Simply staple the mats up into the joist bay and add insulation under them. These mats are available in both 120v (the most commonly used voltage) and 240v (used for very large areas).

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  1. SunTouch UnderFloor 16" x 4' long 120V 0.4A

    SunTouch UnderFloor 16" x 4' long 120V 0.4A

    Our Price
    Our Price: $85.00
    SunTouch UnderFloor 1200416U2ST is a safe and efficient radiant electric floor heating system retrofitting an existing cold floor with heat without disturbing the existing floor covering. Learn More
  2. SunTouch UnderFloor 16" x 6' long 120V 0.6A

    SunTouch UnderFloor 16" x 6' long 120V 0.6A

    Our Price
    Our Price: $125.00
    SunTouch UnderFloor 1200616U2ST is a safe and efficient radiant electric floor heating system retrofitting an existing cold floor with heat without disturbing the existing floor covering. Learn More
  3. SunTouch UnderFloor 16" x 8' long 240V 0.4A

    SunTouch UnderFloor 16" x 8' long 240V 0.4A

    Our Price
    Our Price: $156.00
    SunTouch UnderFloor 2400816U2ST is a safe and efficient radiant electric floor heating system retrofitting an existing cold floor with heat without disturbing the existing floor covering. Learn More
  4. SunTouch UnderFloor 16" x 8' long 120V 0.8A

    SunTouch UnderFloor 16" x 8' long 120V 0.8A

    Our Price
    Our Price: $156.00
    SunTouch UnderFloor 1200816U2ST is a safe and efficient radiant electric floor heating system retrofitting an existing cold floor with heat without disturbing the existing floor covering. Learn More
  5. SunTouch UnderFloor 16" x 9.5' long 120V 1A

    SunTouch UnderFloor 16" x 9.5' long 120V 1A

    Our Price
    Our Price: $174.00
    SunTouch UnderFloor 1200916U2ST is a safe and efficient radiant electric floor heating system retrofitting an existing cold floor with heat without disturbing the existing floor covering. Learn More
  6. SunTouch UnderFloor 16" x 12' long 240V 0.6A

    SunTouch UnderFloor 16" x 12' long 240V 0.6A

    Our Price
    Our Price: $218.00
    SunTouch UnderFloor 2401216U2ST is a safe and efficient radiant electric floor heating system retrofitting an existing cold floor with heat without disturbing the existing floor covering. Learn More
  7. SunTouch UnderFloor 16" x 12' long 120V 1.3A

    SunTouch UnderFloor 16" x 12' long 120V 1.3A

    Our Price
    Our Price: $218.00
    SunTouch UnderFloor 1201216U2ST is a safe and efficient radiant electric floor heating system retrofitting an existing cold floor with heat without disturbing the existing floor covering. Learn More
  8. SunTouch UnderFloor 16" x 14' long 120V 1.5A

    SunTouch UnderFloor 16" x 14' long 120V 1.5A

    Our Price
    Our Price: $249.00
    SunTouch UnderFloor 1201416U2ST is a safe and efficient radiant electric floor heating system retrofitting an existing cold floor with heat without disturbing the existing floor covering. Learn More
  9. SunTouch UnderFloor 16" x 16' long 120V 1.7A

    SunTouch UnderFloor 16" x 16' long 120V 1.7A

    Our Price
    Our Price: $282.00
    SunTouch UnderFloor 1201616U2ST is a safe and efficient radiant electric floor heating system retrofitting an existing cold floor with heat without disturbing the existing floor covering. Learn More
  10. SunTouch UnderFloor 16" x 16' long 240V 0.8A

    SunTouch UnderFloor 16" x 16' long 240V 0.8A

    Our Price
    Our Price: $282.00
    SunTouch UnderFloor 2401616U2ST is a safe and efficient radiant electric floor heating system retrofitting an existing cold floor with heat without disturbing the existing floor covering. Learn More

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