Skip to content
Price match 30-day returns* Talk to an astronomer before you buy
Dew-Not Heater Strip - 12" Scope

Dew-Not Heater Strip - 12" Scope

by Dew-Not
SKU DN013
$68.00 USD - $68.00 USD
$68.00 USD
$68.00 USD - $68.00 USD
$68.00 USD
Price Match Policy!
  • Fits: 12" Telescopes
  • Strip Length: 43.0" (109.2 cm)
  • Power: 20.2 W at 12 V DC
  • Current Draw: 1.68 A
  • Made in: USA
Only 1 left!
Worldwide Shipping
  • Description
  • FAQ
  • Specifications
  • In the Box
  • Warranty

  • Dew-Not Heater Strip - 12" Scope

    The Dew-Not Heater Strip for 12" telescopes is rated at 20.2 watts to prevent dew formation on your optics. This 43.0-inch strip operates on 12V DC, drawing 1.68 amps through a 6-foot power cord terminating in a standard RCA plug. Its patented thick-film heating element ensures even heat distribution across the 42" heated length, with no localized hot spots or burnouts.

    Thick-Film Design: 66% Heat-Emitting Surface Area

    Unlike heaters that rely on resistance wires, this Dew-Not strip uses a patented thick-film heating element where 66% of the surface area actively radiates heat. This design provides more even temperature distribution around your optical tube, with no localized hot spots or burnouts often associated with resistance wire heaters.

    A 43.0" Strip for 12" Telescopes

    Engineered specifically for 12" class telescopes, this 43.0" heater strip closes with Velcro for flexibility and a secure fit. It is cloth covered with foam insulation on the outer side for maximum efficiency and performance. A 6-foot cord with a molded RCA plug connects to standard dew heater controllers (sold separately).

  • What size telescope does the Dew-Not DN013 heater strip fit?

    The Dew-Not DN013 is designed to fit 12" telescopes. Its total strip length is 43.0 inches.

    How do I power the Dew-Not DN013 heater strip?

    This heater strip operates on 12V DC and plugs into a standard dew heater controller (sold separately) through its attached 6-foot power cord and molded RCA plug.

    What makes the thick-film technology in the Dew-Not DN013 different from other heaters?

    The thick-film heater in the Dew-Not DN013 has 66% of its surface area emitting heat. This is a key difference from traditional resistance-wire heaters, which concentrate heat along thin wires. The benefits of the thick-film design include:

    • Even Heat Distribution: No localized hot spots.
    • Reliability: The design avoids burnouts sometimes associated with resistance wires.

    Is the entire 43.0" length of the Dew-Not strip heated?

    No, the active heating element itself is 42 inches long. Dew-Not makes the heating element 1" shorter than the 43.0" strip.

  • Part Number DN013
    Type Dew heater strip
    Fits 12" telescopes
    Strip Length 43.0" (109.2 cm)
    Heater Element Length 42"
    Voltage 12 V DC
    Power 20.2 W
    Current Draw 1.68 A
    Power Cord 6 ft (1.83 m), RCA plug
    Controller Compatible with standard dew heater controllers (sold separately)
    Attachment Velcro closure
    Construction Thick-film heater, cloth covered with foam insulation on the outer side
    Made In USA

    • Dew-Not heater strip with 6 ft cord

      × 1

  • Dew-Not Warranty