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Dew Heaters & Controllers

Moisture condensing on the eye lens of your eyepiece or on the front lens of your telescope (in other words, dew) can cut short an evening's observing or ruin a long exposure deep space photograph if it forms during the exposure. If enough moisture condenses, it also has the potential of getting into the optical tube or eyepiece and causing damage.

Dew heaters are low wattage 12 Volt DC electrical heater strips that wrap around the objective lens of the telescope (as well as the finderscope and eyepieces, if desired). These warm the optics above the dew point to prevent the formation of dew. Unlike dew shields, dew heaters don't merely slow the formation of dew, they prevent its formation entirely.

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  • Digital Dew Heater Strip for 7" to 8" telescopes
    $59.00 - $59.00
    $59.00
    $59.00 - $59.00
    $59.00

    Thousand Oaks Digital Dew Heater Strip for 7" to 8" Telescopes

    Thousand Oaks
    More on the way

    This 1" x 30" dew heater strip fits 7" to 8" catadioptric telescopes. The entire back of the heater strip is Velcro. There is a Velcro tab on an el...

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    $59.00 - $59.00
    $59.00
    $59.00 - $59.00
    $59.00
  • Flexi-Heat Dew shield for Celestron and Meade 8" SCTs
    $92.00 - $92.00
    $92.00
    $92.00 - $92.00
    $92.00

    Astrozap Flexi-Heat Dew Shield for Celestron and Meade 8" SCTs

    Astrozap
    More on the way

    This Astrozap Flexi-Heat heated dew shield fits most Celestron 8" Schmidt-Cassegrains (except the NexStar 8 GPS/I/SE) and most Meade 7" Maksutov-Ca...

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    $92.00 - $92.00
    $92.00
    $92.00 - $92.00
    $92.00
  • $79.95 - $79.95
    $79.95
    $79.95 - $79.95
    $79.95

    Celestron 9.25" Dew Heater Ring

    Celestron
    In Stock

    Celestron's innovative dew solution provides heat where you need it most, on the corrector. The Celestron Dew Heater Ring is the ideal dew preventi...

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    $79.95 - $79.95
    $79.95
    $79.95 - $79.95
    $79.95
  • Heater strap for 7" scopes
    $59.00 - $59.00
    $59.00
    $59.00 - $59.00
    $59.00

    Astrozap Heater Strap for 7" and 8" Scopes

    Astrozap
    More on the way

    This 1.75" x 29" AstroStrap dew heater strip fits refractors and catadioptric telescopes. One side of the heater strip is sponge-insulated. This di...

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    $59.00 - $59.00
    $59.00
    $59.00 - $59.00
    $59.00
  • Flexi-Heat Dew shield for 5" Celestron SCTs (except NexStar 5SE) & Meade ETX-125
    $62.00 - $62.00
    $62.00
    $62.00 - $62.00
    $62.00

    Astrozap Flexi-Heat Dew Shield for 5" Celestron SCTs (Except NexStar 5SE) & Meade ETX-125

    Astrozap
    More on the way

    This Flexi-Heat heated dew shield fits the Celestron 5" C-5 Schmidt-Cassegrain, Celestron 5" C130MAK Maksutov-Cassegrains, and Meade 5" ETX-125 Mak...

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    $62.00 - $62.00
    $62.00
    $62.00 - $62.00
    $62.00
  • Flexi-Heat Dew shield for Meade 12" SCTs
    $159.50 - $159.50
    $159.50
    $159.50 - $159.50
    $159.50

    Astrozap Flexi-Heat Dew Shield for Meade 12" SCTs

    Astrozap
    More on the way

    This Flexi-Heat heated dew shield fits Meade 12" Schmidt-Cassegrain telescopes. The flexible plastic rollup dew shield is made of black ABS plastic...

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    $159.50 - $159.50
    $159.50
    $159.50 - $159.50
    $159.50
  • Flexi-Heat Dew shield for Meade 10" catadioptrics
    $126.00 - $126.00
    $126.00
    $126.00 - $126.00
    $126.00

    Astrozap Flexi-Heat Dew Shield for Meade 10" Catadioptrics

    Astrozap
    In Stock

    This Flexi-Heat heated dew shield fits Meade 10" LX200 and LX200GPS Schmidt-Cassegrains and LX200R Ritchey-Chrétiens. The flexible plastic rollup d...

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    $126.00 - $126.00
    $126.00
    $126.00 - $126.00
    $126.00
  • Flexi-Heat Dew shield for Celestron fork mount 9¼" SCTs (except GPS)
    $122.00 - $122.00
    $122.00
    $122.00 - $122.00
    $122.00

    Astrozap Flexi-Heat Dew Shield for Celestron Fork Mount 9.25" SCTs (Except GPS)

    Astrozap
    In Stock

    This Astrozap Flexi-Heat heated dew shield fits Celestron 9.25" fork mount Schmidt-Cassegrains (except the NexStar 9¼ GPS). The flexible plastic ro...

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    $122.00 - $122.00
    $122.00
    $122.00 - $122.00
    $122.00
  • Heater strap for 12" scopes
    $69.00 - $69.00
    $69.00
    $69.00 - $69.00
    $69.00

    Astrozap Heater Strap for 12" Scopes

    Astrozap
    More on the way

    This 1.75" x 43" AstroStrap dew heater strip fits 12" catadioptric telescopes having an outer barrel diameter of 12.7" to 14.3" (320mm to 365mm). O...

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    $69.00 - $69.00
    $69.00
    $69.00 - $69.00
    $69.00
  • $439.95 - $439.95
    $439.95
    $439.95 - $439.95
    $439.95

    Celestron Smart Dewheater Controller With Four Outputs 94036

    Celestron
    In Stock

    The Celestron Smart Dewheater Controller has some great attachment options and cool features to help you eliminate any dew issues. Work smarter, no...

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    $439.95 - $439.95
    $439.95
    $439.95 - $439.95
    $439.95
  • Flexi-Heat Dew shield for Celestron 11" SCTs
    $141.00 - $141.00
    $141.00
    $141.00 - $141.00
    $141.00

    Astrozap Flexi-Heat Dew Shield for Celestron 11" SCTs

    Astrozap
    In Stock

    This Flexi-Heat heated dew shield fits Celestron 11" Schmidt-Cassegrain telescopes. The flexible plastic rollup dew shield is made of black ABS pla...

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    $141.00 - $141.00
    $141.00
    $141.00 - $141.00
    $141.00
  • Heater strap for 0.965" eyepieces and finderscope eyepieces
    $42.00 - $42.00
    $42.00
    $42.00 - $42.00
    $42.00

    Astrozap Heater Strap for 0.965" Eyepieces and Finderscope Eyepieces

    Astrozap
    More on the way

    This 1.25" x 4.5" AstroStrap dew heater strip fits 0.965" eyepieces and finderscope eyepieces. One side of the heater strip is sponge-insulated. Th...

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    $42.00 - $42.00
    $42.00
    $42.00 - $42.00
    $42.00
  • $43.95 - $43.95
    $43.95
    $43.95 - $43.95
    $43.95

    Celestron 6" Dew Heater Ring

    Celestron
    More on the way

    Celestron's innovative dew solution provides heat where you need it most, on the corrector. The Celestron Dew Heater Ring is the ideal dew preventi...

    View full details
    $43.95 - $43.95
    $43.95
    $43.95 - $43.95
    $43.95
  • $159.95 - $159.95
    $159.95
    $159.95 - $159.95
    $159.95

    Celestron 14" Dew Heater Ring

    Celestron
    In Stock

    Celestron's innovative dew solution provides heat where you need it most, on the corrector. The Celestron Dew Heater Ring is the ideal dew preventi...

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    $159.95 - $159.95
    $159.95
    $159.95 - $159.95
    $159.95
  • Flexi-Heat Dew shield for 8" Meade SN-8 LXD55/75 Schmidt-Newtonians
    $95.00 - $95.00
    $95.00
    $95.00 - $95.00
    $95.00

    Astrozap Flexi-Heat Dew Shield for 8" Meade SN-8 LXD55/75 Schmidt-Newtonians

    Astrozap
    More on the way

    This Flexi-Heat heated dew shield fits Meade 8" SN-8 LXD55/75 Schmidt-Newtonian telescopes. The flexible plastic rollup dew shield is made of black...

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    $95.00 - $95.00
    $95.00
    $95.00 - $95.00
    $95.00
  • Flexi-Heat Dew shield for 10" Meade SN-10 LXD55/75 Schmidt-Newtonians
    $126.00 - $126.00
    $126.00
    $126.00 - $126.00
    $126.00

    Astrozap Flexi-Heat Dew Shield for 10" Meade SN-10 LXD55/75 Schmidt-Newtonians

    Astrozap
    More on the way

    This Flexi-Heat heated dew shield fits Meade 10" SN-10 LXD55/75 Schmidt-Newtonian telescopes. The flexible plastic rollup dew shield is made of bla...

    View full details
    $126.00 - $126.00
    $126.00
    $126.00 - $126.00
    $126.00
  • Flexi-Heat Dew shield for 4" Celestron NexStar 4 and Meade ETX-105 Maksutov-Cassegrains
    $60.00 - $60.00
    $60.00
    $60.00 - $60.00
    $60.00

    Astrozap Flexi-Heat Dew Shield for 4" Celestron NexStar 4 and Meade ETX-105 Maksutov-Cassegrains

    Astrozap
    More on the way

    This Flexi-Heat heated dew shield fits the Celestron 4" NexStar 4 and NexStar 4 SE and Meade ETX-105 Maksutov-Cassegrains. The flexible plastic rol...

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    $60.00 - $60.00
    $60.00
    $60.00 - $60.00
    $60.00
  • Flexi-Heat Dew shield for 3.5" Celestron C-90 and Meade ETX-90
    $54.00 - $54.00
    $54.00
    $54.00 - $54.00
    $54.00

    Astrozap Flexi-Heat Dew Shield for 3.5" Celestron C-90 and Meade ETX-90

    Astrozap
    More on the way

    This Flexi-Heat heated dew shield fits the Celestron 3.5" C-90 and Meade ETX-90 Maksutov-Cassegrains. The flexible plastic rollup dew shield is mad...

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    $54.00 - $54.00
    $54.00
    $54.00 - $54.00
    $54.00
  • Flexi-Heat Dew shield for Celestron and Meade 14" SCTs
    $188.00 - $188.00
    $188.00
    $188.00 - $188.00
    $188.00

    Astrozap Flexi-Heat Dew Shield for Celestron and Meade 14" SCTs

    Astrozap
    In Stock

    This Flexi-Heat heated dew shield fits Celestron and Meade 14" Schmidt-Cassegrain telescopes. The flexible plastic rollup dew shield is made of bla...

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    $188.00 - $188.00
    $188.00
    $188.00 - $188.00
    $188.00
  • Binoviewer heater straps, pair
    $78.00 - $78.00
    $78.00
    $78.00 - $78.00
    $78.00

    Astrozap Binoviewer Heater Straps, Pair

    Astrozap
    In Stock

    This AstroStrap binoviewer/binocular heater consists of two 1.25" x 6" dew heater strips, one for each eyepiece in a binoviewer setup. The two stri...

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    $78.00 - $78.00
    $78.00
    $78.00 - $78.00
    $78.00
  • Flexi-Heat Dew shield for Meade 16" SCTs
    $205.00 - $205.00
    $205.00
    $205.00 - $205.00
    $205.00

    Astrozap Flexi-Heat Dew Shield for Meade 16" SCTs

    Astrozap
    More on the way

    This Flexi-Heat heated dew shield fits Meade 16" Schmidt-Cassegrain telescopes. The flexible plastic rollup dew shield is made of black ABS plastic...

    View full details
    $205.00 - $205.00
    $205.00
    $205.00 - $205.00
    $205.00
  • Heater strap for 16" scopes
    $71.00 - $71.00
    $71.00
    $71.00 - $71.00
    $71.00

    Astrozap Heater Strap for 16" Scopes

    Astrozap
    More on the way

    This Product Has Been Discontinued And This Is Here for Informational Purposes Only. It Is No Longer For  Sale. This 1.75" x 55" AstroStrap dew hea...

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    $71.00 - $71.00
    $71.00
    $71.00 - $71.00
    $71.00
  • Flexi-Heat Dew shield for 6" Meade SN-6 LXD55/75 Schmidt-Newtonians
    $71.34 - $71.34
    $71.34
    $71.34 - $71.34
    $71.34

    Astrozap Flexi-Heat Dew Shield for 6" Meade SN-6 LXD55/75 Schmidt-Newtonians

    Astrozap
    More on the way

    This Flexi-Heat heated dew shield fits Meade 6" SN-6 LXD55/75 Schmidt-Newtonian telescopes. The flexible plastic rollup dew shield is made of black...

    View full details
    $71.34 - $71.34
    $71.34
    $71.34 - $71.34
    $71.34
  • $46.00 - $46.00
    $46.00
    $46.00 - $46.00
    $46.00

    Astrozap Rigel Quik Finder Heater

    Astrozap
    In Stock

    This product requires the use of a simple D/C adapter (AZ-719) or dual channel controller (AZ-720) to be powered.

    $46.00 - $46.00
    $46.00
    $46.00 - $46.00
    $46.00

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