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dew prevention

Primary Mirror Dew Heater

Kendrick   ——   SKU: 2023
$97.00 CAD
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About the Kendrick Primary Mirror Dew Heater...

Kendrick Primary Mirror Heaters have been designed for 8" to 18" mirrors. They are very effective in the prevention of dew on Newtonian telescope optics, particularly for those who have Dobsonian telescopes with open truss tube designs.

 

The Kendrick Primary Mirror Heater is installed behind the mirror in between the mirror and the mirror cell and are held in place by putting a thin skim of silicone caulk (easily found at any hardware store) onto the heater and allowing the heater to dry to the back of the mirror. We do not recommend using heaters that would wrap around the outside of the optic as the thickness of Newtonian primary mirrors make this method ineffective due to the mirror mass. It is much better and much more effective to heat a primary mirror from behind.

 

The Kendrick Primary Mirror Heater can be used with a temperature sensor with a Kendrick Premier Digital Dew Controller (#2002) or DigiFire-10 Controller (#2001-10) for accurate optic temperature control or with any Kendrick controller in duty cycle mode.

 

It is recommended that the Kendrick Primary Mirror Heater be used at a low controller setting (ie: 15% to 20% in order to prevent optical distortion. The high wattage is built into the heaters to help clear dew or frost that is already on the optic. Once cleared reset your controller to a lower setting.

 

 

Kendrick Primary Mirror Dew Heater Features...

 

  • Very effective in the prevention of dew on Newtonian telescope optics, particularly for those who have Dobsonian telescopes with open truss tube designs

     

     

  • Installed behind the mirror in between the mirror and the mirror cell

     

     

  • Can be used with a temperature sensor with a Kendrick Premier Digital Dew Controller (#2002) or DigiFire-10 Controller (#2001-10) for accurate optic temperature control or with any Kendrick controller in duty cycle mode

     

     

  • High wattage is built into the heaters to help clear dew or frost that is already on the optic

     

     

  • This model is designed for 10" mirrors

 

 

Kendrick Primary Mirror Dew Heater Specifications...

Equipment Type: Primary Mirror Heater Element

Controller: Optional

Amps: .9

Watts: 11

Volts: 12