Celestron Dew Heater Ring 11"

050234940535

Celestron

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£84.99
£84.99
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Celestron Dew Heater Ring for 11” SCT, EdgeHD & RASA

Keep your optics clear and your telescope ready with the Celestron Dew Heater Ring, purpose-built for 11” Celestron Schmidt-Cassegrain, EdgeHD, and RASA OTAs (manufactured 2006 or later). This smart, efficient dew prevention system replaces the factory retaining ring, becoming a permanent and reliable part of your setup.

Direct Heating for Reliable Dew Control

Unlike standard heat bands that warm the lens cell, the Dew Heater Ring applies heat directly to the Schmidt corrector, delivering fast and efficient performance with minimal power draw. The lightweight aluminium frame provides structural support while housing the built-in circuitry.

Simply connect the ring to a 12V DC power source for consistent heating—even in heavy dew conditions. Integrated jack holders and a cable clip ensure a tidy, secure installation.

Smart Thermistor Integration

A built-in temperature sensor allows for intelligent, automated control when used with Celestron Smart DewHeater Controllers (sold separately). These controllers optimise power use based on ambient conditions and corrector temperature, helping extend battery life without compromising performance.

What's Included

  • Dew Heater Ring

  • Cable management clip

  • Power jack extension cable

  • Paper installation shield

Recommended Accessories

  • Smart DewHeater Controller – Enables automatic, sensor-based heat regulation

  • Dew Shield – Reduces heat loss and further improves efficiency

  • 12V Power Supply – Such as the PowerTank Lithium Pro for extended sessions

Key Features

  • Fits 11” Celestron SCT, EdgeHD & RASA OTAs (2006+)

  • Replaces factory retaining ring for permanent, low-profile installation

  • Heats corrector glass directly for maximum efficiency

  • Built-in thermistor for use with Smart DewHeater Controllers

  • Integrated jack storage and cable management for clean setup

Reliable, efficient, and purpose-built, the 11” Celestron Dew Heater Ring is the ideal upgrade for astronomers who want clear, uninterrupted viewing and imaging—no matter the conditions.

Shipping Options

Fast & Reliable UK Delivery

We offer flexible delivery options across the UK, with free shipping available on qualifying orders.

  • FREE Next Working Day Delivery (Mon–Fri)
    On all orders £300 and over
  • FREE Express Delivery (1–3 Working Days)
    On orders £49.99 – £299.99
  • Express Delivery – £3.99
    On orders under £49.99
  • Standard Delivery (2–4 Working Days) – £2.99
    A great value option for smaller orders
  • Priority Shipping – £8.99
    A fully tracked, guaranteed delivery service, including Saturday delivery options

Order Fulfilment

Some items, as clearly stated on the product page, may be fulfilled directly by our partners or manufacturers. In these cases, your order will be shipped to you straight from the brand’s warehouse. This helps us provide a wider range of specialist equipment and may result in slightly different delivery times.

Returns Policy

If something isn’t right, we’ll always try to help.

  • Unused items in “as new” condition can usually be returned within the statutory cooling-off period
  • Please contact us before sending anything back so we can advise on the safest way
  • For unwanted items, return shipping is your responsibility, and original shipping may be deducted where applicable
  • If a product is faulty or damaged, we’ll arrange repair, replacement or refund in line with your consumer rights — and we’ll cover reasonable return costs

Telescope shipping is expensive, and specialist — avoidable returns really do impact our business, so we always encourage customers to ask questions before buying. We’re here to help you get it right first time.

Your statutory rights are not affected.

Does it come with a warranty?

All our products are UK stock so come with manufacturers warranty

What happens if I don't like it?

We always want you to be happy with your purchase — so if you’re unsure, please ask us first. We’re always happy to give honest advice before you buy.

If the product arrives and you simply decide it isn’t for you, you can usually return it within the cooling-off period — as long as it’s unused, in perfect condition, and returned with all original packaging and accessories.

Because telescopes and optical equipment are large, delicate and expensive to ship, you’ll need to cover the cost of sending it back, and if we originally subsidised delivery, we may deduct our outbound shipping costs from your refund.

We’re a small specialist business, and unnecessary returns genuinely hurt us — so if you’re unsure at all, please talk to us first. We’d rather help you choose the right item than process a return.

How fast is shipping?

We aim to ship in-stock items as quickly as possible.

  • Most in-stock orders dispatch within 1–2 working days
  • Delivery usually takes 1–3 working days after dispatch (UK mainland)
  • Heavier / oversized items and special orders may take a little longer

You’ll receive tracking details as soon as your order is on its way.

Astronomy equipment often requires specialist packing and trusted couriers — we do this to keep your gear safe, not to slow things down. If you need something urgently, just ask and we’ll do our best.

What's the returns policy?

If something isn’t right, we’ll always try to help.

  • Unused items in “as new” condition can usually be returned within the statutory cooling-off period
  • Please contact us before sending anything back so we can advise on the safest way
  • For unwanted items, return shipping is your responsibility, and original shipping may be deducted where applicable
  • If a product is faulty or damaged, we’ll arrange repair, replacement or refund in line with your consumer rights — and we’ll cover reasonable return costs

Telescope shipping is expensive, and specialist — avoidable returns really do impact our business, so we always encourage customers to ask questions before buying. We’re here to help you get it right first time.

Your statutory rights are not affected.

What are your opening hours?

Monday: 9.00am - 5.00pm
Tuesday: 9.00am - 5.00pm
Wednesday: 9.00am - 5.00pm
Thursday: 9.00am - 5.00pm
Friday: 9.00am - 5.00pm
Saturday: 9.00am - 5.00pm
Sunday: Closed