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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.
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.
Orion Optics UK Dew Heater for Sec. 14″

Orion Optics UK Dew Heater for Sec. 14″

by Orion Optics UK
SKU OOUK-SECONDARY-DEW-HEATER-AG14-ODK14
$852.14 - $852.14
$852.14
$852.14 - $852.14
$852.14
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  • Custom-designed for 14" Orion Optics UK secondary mirrors
  • Prevents dew formation on the secondary optical surface
  • Ensures maximum image contrast and light transmission
  • Engineered for AG14 and ODK14 telescope models
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  • Description
  • FAQ
  • Specifications
  • In the Box
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  • Warranty

  • Dew Heater for Sec. 14″

    This Orion Optics UK Dew Heater is the definitive solution for protecting the secondary mirror of your 14-inch telescope from moisture. Custom-engineered specifically for the 14-inch AG14 and ODK14 models, it ensures your imaging sessions are not cut short by dew. By applying gentle, controlled warmth, this heater keeps the secondary mirror surface just above the dew point, preserving the high-contrast performance of your 14-inch optical system all night long.

    Maintain Peak Contrast: Why Your 14" Secondary Needs Heat

    In any open-tube Newtonian or Dall-Kirkham design, the secondary mirror is the most exposed optical element and the first to fall victim to dew. As its temperature drops below the ambient dew point, microscopic water droplets form, scattering light, destroying contrast, and ultimately rendering your telescope unusable. This heater for your 14-inch secondary directly counteracts this cooling, maintaining the mirror's surface temperature to prevent dew from ever forming.

    The result is a protected optical surface that continues to deliver the sharp, high-contrast views your Orion Optics UK instrument was built for. For imagers, this means no loss of faint signal from nebulae or galaxies, and for visual observers, it means planetary details remain crisp even on damp nights.

    Seamless Integration for 14" AG14 & ODK14 Telescopes

    This is not a generic, one-size-fits-all solution. The Orion Optics UK Dew Heater for Sec. 14" is designed to integrate perfectly with the specific mechanics of their 14-inch Astrograph (AG14) and Optimized Dall-Kirkham (ODK14) telescopes. Its form factor and power requirements are matched to the instrument, ensuring efficient heat transfer without introducing any optical or mechanical interference.

    By using a component designed by the telescope's original manufacturer, you guarantee a correct fit and reliable operation. It's an essential piece of equipment for any owner of a 14-inch Orion Optics UK telescope who observes or images in humid conditions.

  • Why do I need a secondary dew heater for my Orion Optics UK 14" telescope?

    The secondary mirror on your 14" AG14 or ODK14 is exposed to the night sky and will radiate heat, quickly cooling below the dew point. When this happens, dew forms and completely compromises your images and views by scattering light. This heater is essential insurance against a session-ending dew-out.

    Is this Orion Optics UK 14" dew heater compatible with other telescopes?

    No. This heater is specifically designed for the secondary mirror mounts and dimensions of the Orion Optics UK 14" AG14 and ODK14 models. Using it on other telescopes is not recommended as the fit and heating characteristics may not be appropriate.

    Will using this heater on my ODK14 affect image quality or introduce tube currents?

    When used with a proper dew controller, the heater applies very gentle, low-power warmth—just enough to stay 1-2 degrees above the dew point. This minimal thermal input is highly unlikely to create noticeable tube currents or degrade the exceptional image quality of your 14-inch ODK14. Its primary function is to preserve, not alter, the optical performance.

    I'm imaging the Andromeda Galaxy (M31) with my AG14; how critical is this heater?

    For long-exposure imaging of faint, broad targets like the Andromeda Galaxy (M31), preventing dew is absolutely critical. Even a thin layer of dew on the secondary of your AG14 will scatter faint light from the galaxy's outer arms, drastically reducing contrast against the sky background. This heater ensures your 14" optical system collects clean data for the entire duration of your imaging run.

    What kind of dew controller do I need for this 14" secondary heater?

    You will need a 12V DC dew controller system with at least one available heater output channel. These controllers allow you to adjust the power sent to the heater, ensuring you apply only the minimum energy needed to prevent dew. This conserves battery power and minimizes any potential for heat-induced turbulence.

    How is the Dew Heater for Sec. 14" installed?

    Installation typically involves attaching the heater element to the back of the secondary mirror holder. The power cable is then routed along one of the secondary spider vanes to the outside of the optical tube for connection to a dew controller. Always refer to the manufacturer's specific instructions for your telescope model.

  • Orion Optics UK 1-Year Warranty