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IMPORTANT: Our store is located in Canada. All orders that include products manufactured outside of Canada or USA will be subject to tariffs and duties, regardless of the order value. US customers are responsible for all applicable duties and tariffs, and those will be billed by the carrier, except for the Lacerta upgrade kit, for which we collect them at checkout.
Celestron Dew Heater Ring - 14"
Celestron Dew Heater Ring - 14"
Celestron Dew Heater Ring - 14"
Celestron Dew Heater Ring - 14"
Celestron Dew Heater Ring - 14"

Celestron Dew Heater Ring - 14"

by Celestron
SKU CEL-94054
$164.95 - $164.95
$164.95
$164.95 - $164.95
$164.95
Price Match Policy!
  • Maintains clear optics by directly heating your 14" corrector plate
  • Delivers up to 52 watts of heating power for use in heavy dew conditions
  • Rigid aluminum construction replaces the telescope's retaining ring for a permanent, perfect fit
  • Integrated thermistor provides precise temperature data to Celestron Smart DewHeater Controllers
  • Powered by a standard 12V DC, 5.5mm/2.1mm barrel connector
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  • Description
  • FAQ
  • Specifications
  • In the Box
  • Downloads
  • Warranty

  • Celestron Dew Heater Ring - 14"

    The Celestron Dew Heater Ring for 14" telescopes is an integrated dew prevention system that delivers up to 52 watts of power directly to your corrector lens. Its durable aluminum ring construction with an inner diameter of 355.6mm permanently replaces the stock retaining ring on your 14" Schmidt-Cassegrain, EdgeHD, or RASA. Power is supplied via a common 12V DC barrel connector, and an integrated thermistor provides precise temperature monitoring when used with Celestron's SmartHeat controllers.

    Direct Corrector Heating with 52 Watts

    Unlike standard heater strips that warm the lens cell inefficiently, the Celestron Dew Heater Ring heats the corrector glass directly. This method provides the most efficient heat transfer possible, applying up to 52 watts to keep your optics clear even on nights with heavy dew. This direct heating is more effective and consumes less power over an observing session compared to external bands.

    Permanent Fit for 14" Celestron OTAs

    Engineered from lightweight, rigid aluminum, this dew heater ring is designed to replace the plastic retaining ring on your telescope. This creates a permanent, secure installation you never have to remove, ensuring you're always prepared for a dewy night. The 355.6mm inner diameter provides a precise fit for 14" Schmidt-Cassegrain, EdgeHD, and RASA optical tubes, supporting the corrector lens while housing all cable circuitry cleanly.

    • Integrated Design: Replaces the factory retaining ring for a seamless fit that doesn't add bulk or interfere with accessories.
    • Storage Clips: Two built-in clips secure the power and thermistor jacks when not in use, allowing the dust cover to fit perfectly.
    • Cable Management: An included clip attaches to the front cell, preventing the power cables from dangling and causing snags or strain.

    12V DC Power and Smart Controller Integration

    The ring operates on a standard 12V DC input using a 5.5mm/2.1mm barrel connector, a common power source at any imaging setup. For maximum efficiency, the ring's built-in thermistor connects to Celestron SmartHeat Dew Controllers via a 2.5mm audio jack. This smart system provides just enough power based on real-time temperature and humidity, drastically reducing power draw and extending battery life.

    • Thermistor Compatibility: The integrated thermistor is designed exclusively for Celestron SmartHeat Dew Controllers, enabling intelligent power management.
    • Included Extension Cable: A 6" cable is provided to connect the ring to a controller's heater port or a third-party controller that uses a male RCA-style plug.

  • How much power does the 14" Celestron Dew Heater Ring actually use?

    The ring has a maximum power draw of 52 watts. However, actual consumption is typically much lower, especially when paired with a Celestron Smart DewHeater Controller. The controller uses the ring's built-in thermistor to apply only the necessary amount of heat, significantly conserving battery power.

    Can I use the 14" Dew Heater Ring with my Celestron EdgeHD 1400 on a very humid night?

    Yes, this is precisely what the ring is designed for. Its 52-watt maximum output and direct-heating method are highly effective at preventing dew on large 14" corrector plates, even in challenging, high-humidity conditions. For best results, pair it with a dew shield to reduce the overall power required to keep the optics clear.

    Is the installation of the Celestron Dew Heater Ring reversible?

    Yes. While it's designed for permanent installation, you can reverse the process. The Dew Heater Ring replaces the telescope's original plastic retaining ring, which you should keep. If you ever need to remove the heater, you can simply reinstall the original ring.

    Can I use the Celestron Dew Heater Ring with a third-party dew controller?

    You can power the Celestron Dew Heater Ring with a third-party controller. The included 6" power jack extension cable has a male RCA connector compatible with many controllers. However, the ring's integrated thermistor function is only compatible with Celestron Smart DewHeater Controllers.

    Will the Dew Heater Ring for my RASA 36cm interfere with my camera cables?

    No. The ring is designed with integrated storage clips and includes a cable management clip. These features help you route the power and thermistor cables away from the imaging train, preventing them from dangling in the light path or pulling on any connections.

    Why should I choose the Celestron Dew Heater Ring over a standard dew strap?

    The primary advantage is efficiency. The Dew Heater Ring heats the corrector glass directly, while a dew strap heats the lens cell and surrounding metal. Direct heating prevents dew with less power and provides more even heating across the entire optical surface, which is critical for maintaining image quality on a 14" system.

  • Max Power 52 watts
    Power Jack 12V DC barrel connector, 5.5mm/2.1mm, tip positive
    Ring Construction Aluminum
    Power Jack Extension Cable 6" long, 12V DC, 5.5mm/2.1mm barrel connector on one end, male RCA connector on other end, tip positive
    Thermistor Jack 2.5mm audio jack, compatible with Celestron SmartHeat Dew Controllers
    Compatibility 14" Schmidt-Cassegrain, EdgeHD, Rowe-Ackermann Schmidt Astrograph (RASA)
    Inner Diameter 355.6mm (14")
    Outer Diameter 388.1mm (15.28")
    Weight 6.88 oz (195.2 g)
    • Celestron 14-inch Dew Heater Ring

      Dew Heater Ring - 14"

      × 1

    • Cable Management Clip

      Cable Management Clip

      × 1

    • Power Jack Extension Cable

      Power Jack Extension Cable

      × 1

    • Paper Installation Shield

      Paper Installation Shield

      × 1

  • Celestron 2-Year Warranty