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Dew-Not Heater Strip - 8" Scope

Dew-Not Heater Strip - 8" Scope

by Dew-Not
SKU DN009
CA$77.00 - CA$77.00
CA$77.00
CA$77.00 - CA$77.00
CA$77.00
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  • Fits 8" Schmidt-Cassegrain and similar telescopes
  • 30.0" (76.2cm) strip length with 29" heating element
  • 14 W power consumption at 12V DC
  • Draws 1.18 A of current
  • Thick-film heater for even heat distribution
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  • Description
  • FAQ
  • Specifications
  • Warranty

  • Dew-Not Heater Strip - 8" Scope

    The Dew-Not Heater Strip for 8" scopes delivers consistent, burnout-free dew prevention by drawing 14 W of power at 12V DC. This 30.0" strip wraps securely around 8" OTAs, utilizing a 29" thick-film heating element to gently warm your optics and keep them clear all night. Its efficient 1.18 A current draw makes it a reliable component of any field power setup.

    Thick-Film Heating: Eliminating Hot Spots in an 8" System

    Unlike heaters that use a single resistance wire, this Dew-Not strip employs a patented thick-film heating element. This design distributes warmth evenly across the full 29" element length, preventing the localized hot spots that can degrade views or damage coatings over time. The result is a safer, more uniform thermal gradient on your corrector plate or primary objective.

    Field-Ready Power: A 14W Draw at 12V DC

    Engineered for standard 12V DC astronomy power systems, this heater draws a modest 14 W (1.18 A). This efficient power consumption helps preserve your portable battery's charge for longer imaging or observing sessions. The strip connects via a standard RCA-style jack, ensuring compatibility with most commercially available dew heater controllers (sold separately).

    Sized for 8" OTAs: The 30" Strip with a 29" Element

    With a total length of 30.0", this strip is correctly sized to wrap around the tube of an 8" telescope with a secure, insulated fit. The outer cloth and foam layer directs heat inward toward the optics, while the Velcro closure ensures a snug connection that won't slip during the night. The 29" active heating element is intentionally sized to provide full coverage without wasted energy.

  • How much power does the Dew-Not 8" Heater Strip draw?

    The Dew-Not heater for 8" scopes is rated for 14 W of power and draws 1.18 A of current when connected to a 12V DC source. This is a standard power level for a heater of this size, balancing effective dew prevention with efficient use of field battery power.

    What makes this Dew-Not Heater Strip different from cheaper wire-based heaters?

    The primary difference is the heating technology. Dew-Not uses a thick-film heating element that distributes heat evenly across a large surface. Many other heaters use a simple resistance wire, which can create hot spots and uneven heating. This even distribution provides more reliable dew prevention and is safer for your optics.

    Will this 30" Dew-Not strip fit my Celestron 8" SCT or Meade 8" ACF?

    Yes, this heater strip is designed specifically for 8" OTAs, including popular Schmidt-Cassegrain (SCT), Maksutov-Cassegrain, and ACF designs. The 30.0" length provides the necessary circumference to wrap securely around the front cell of these telescopes.

    What kind of controller do I need for this Dew-Not Heater Strip?

    You will need a dew heater controller that operates on 12V DC and has outputs with standard RCA-style phono jacks. The Dew-Not strip does not have a built-in controller and requires an external unit to regulate its power output. Most astronomy-specific dew controllers are compatible.

    Can I use this Dew-Not heater on my 8" Dobsonian's secondary mirror cage?

    Yes, this strip can be used to warm the upper tube assembly or secondary cage of an 8" truss-tube or solid-tube Dobsonian. Wrapping it around the exterior of the cage can help prevent dew from forming on the secondary mirror by slightly raising the temperature of the surrounding structure.

    Why is the heating element (29") shorter than the strip length (30.0")?

    The 30.0" measurement is the total physical length of the fabric strip, including the Velcro closure. The active heating element is 29" long. This design ensures the entire heated portion of the strip is in contact with your telescope tube, with the extra inch of material providing a secure overlap for the Velcro.

  • Fit 8" Telescopes / OTAs
    Strip Length 30.0" (76.2cm)
    Heater Element Length 29"
    Voltage 12V DC
    Power 14 W
    Current Draw 1.18 A
    MPN DN009
  • Dew-Not Warranty