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Black aluminum dew heater ring for 11 inch telescope

Celestron

Celestron Dew Heater Ring 11" Aluminum Black

SKU CH-QH6K-QK41F

Prevents dew on 11" Schmidt-Cassegrain and EdgeHD corrector plates using a 12V powered aluminum ring that replaces the retaining ring

  • Prevents dew on the Schmidt corrector lens for clear observing and imaging
  • Custom fit for 11" Celestron Schmidt-Cassegrain EdgeHD and RASA optical tubes
  • Replaces the retaining ring permanently so the heater is always ready
  • Lightweight durable aluminum construction with rigid frame supporting cable circuitry and corrector lens
  • Built-in storage clips and cable management clip keep power leads secure and organised

Perfect fit for 11" EdgeHD and RASA

The Celestron Dew Heater Ring is a dedicated accessory that permanently replaces the standard retaining ring on 11-inch Schmidt-Cassegrain EdgeHD and RASA optical tubes. Its rigid aluminium frame supports the Schmidt corrector lens while housing the heating circuitry. The unit draws power from an external 12V DC source to deliver continuous warmth that stops dew forming on the corrector plate.

Suited for owners of compatible 11" tubes

This ring is built exclusively for Celestron 11-inch EdgeHD and RASA telescopes, so it suits astronomers who use those specific models and want a permanent, integrated dew solution. Observers with smaller or larger aperture tubes, or with optical tubes from other manufacturers, cannot use this ring because the mounting dimensions and retainer design are model-specific.

Requires a 12V DC power source

Operation depends entirely on an external 12V DC supply, which is not included with the heater ring. The ring provides two storage clips for the power and thermistor jacks plus a cable management clip that attaches to the front cell, but you must provide the 12V source and any necessary controller or cabling to complete the installation.

How it compares

Measured against everything we stock in AV Accessories & Components, at today’s prices. Recalculated every night.

Price $58.99
Pricier than about 61% of the 3,838 comparable items (median $41.99).

Specifications

No published specifications for this item yet.

Questions about this item

Does the 11" Dew Heater Ring include a 12V DC power supply or must one be bought separately?

The ring requires an external 12V DC power source which is not included; you will need to supply your own power supply or battery pack.

Which telescopes does the 11" Dew Heater Ring fit?

It fits all 11" Celestron Schmidt-Cassegrain EdgeHD and RASA optical tubes and permanently replaces the existing retaining ring.

How does the 12V DC power affect dew prevention during a session?

Continuous 12V DC power delivers consistent heat across the corrector plate, keeping the lens clear of dew for the entire observing or imaging session.

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