Astrozap Heater Strap for 14" and 16" Scopes

AstroZap Dew Heater Strap for 14" and 16" Telescopes

Big scopes mean big views—and big surfaces for dew to settle on. The AstroZap Heater Strap for 14" and 16" Telescopes is designed to deliver reliable, even heat to the optical front end of your large-aperture instrument, whether it’s a Schmidt-Cassegrain, Ritchey-Chrétien, Newtonian, or Maksutov. If your OTA has a 14" to 16" outer diameter, this strap has it covered—literally.

At the heart of the design is a low-wattage nichrome heating element, embedded in a durable, fabric-backed flexible strip. It wraps cleanly around your optical tube and stays in place with a Velcro fastening strip, delivering uniform warmth across the corrector plate, objective lens, or secondary mirror housing. The standard RCA-style plug allows seamless integration with most 12V dew controllers (sold separately), giving you precise power regulation to match the night’s conditions.

Whether you’re set up for a long night of astrophotography or a public star party, this heater strap ensures your views stay sharp and dry from first light to last call.

Features:

• Designed for 14" to 16" telescopes of all designs (SCT, RC, Mak, Newt, etc.)

• Low-wattage heater element provides gentle, even warmth

• Connects via RCA plug to standard 12V dew controllers

• Flexible, fabric-backed construction wraps snugly around the OTA

• Secures with Velcro closure for easy, adjustable fit

• Ideal for dew prevention on corrector plates, lenses, and mirror cells

Observing Tip:

Heater straps work best when activated before dew starts to form. Pair one with a dew shield for extra insulation and better battery efficiency—you’ll use less power while keeping your optics clear all night long.