Is your Basking Spot stuck in the past? Why SA Reptile Keepers are moving Beyond CHEs

Whether you’re keeping a Bearded Dragon or an Amazon Tree Boa, heat is the heartbeat of your enclosure. For years, Ceramic Heat Emitters (CHEs) have been the "old faithful" of the South African reptile hobby. They’re available at almost every local pet shop from Cape Town to Musina, but as our understanding of reptile physiology evolves, many of us are realising they might not be the "gold standard" we once thought.

If you’re looking to level up your husbandry, here’s why it might be time to rethink that ceramic bulb.

1. The Sunlight Factor: IR-C vs. IR-A/B

In the wild, our reptile pets would bask under the sun. That sun provides Infrared A and B, which penetrate deep into the muscle tissue to warm the animal’s core.

CHEs primarily produce Infrared C (long-wave). Think of it like this:

•  Sunlight/Halogens: Like a deep-tissue massage that warms you to the bone.

• CHEs: Like standing in a warm room; it heats the skin and the air, but the reptile has to sit there much longer to actually reach a healthy core temperature.

2. Ambience vs. Basking

A true basking spot should be directional, mimicking a sunbeam hitting a specific rock. CHEs tend to radiate heat in a wide, fuzzy glow. This makes it harder to create a crisp thermal gradient, that essential transition from a hot side to a cool side, which is vital for your reptile's natural self-regulation.

3. The Humidity Killer

This is a big one for keepers in our drier inland provinces like Gauteng or the Free State. CHEs are notorious for stripping humidity out of the air. If you are struggling with stuck sheds or respiratory issues in your tropical species, your CHE might be the culprit. It bakes the air dry rather than warming the surfaces.

4. No Light, No Life?

Reptiles associate bright light with heat. In nature, if it’s bright, it’s hot. Using a CHE as a primary daytime heat source can be confusing for some species' circadian rhythms. Modern husbandry thrives on the Heat + Light combo during the day, and total darkness at night.

Better Alternatives for Your Setup

If you’re looking to upgrade, here is what the experts are switching to:

Option

• Halogen Flood Lamps

Best Use

• Daytime Basking

Why it Rocks

• Provides the best IR-A/B levels;

Option

• Deep Heat Projectors (DHP)

Best Use

• Day or Night

Why it Rocks

• Penetrates deeper than a CHE but produces no light. Great for 24/7 use.

Option

• Mercury Vapour Bulbs

Best Use

• Large Enclosures

Why it Rocks

• A powerhouse bulb that provides Heat, UVA, and UVB all in one.

Does the CHE still have a place?

Don't throw your ceramics away just yet! They are still incredibly useful for:

• Night-time heat, especially if your local winter temps drop below 15°C inside your house.

• Ambient boosts: CHEs help maintain a suitable minimum temperature in large vivariums.

• Light-sensitive species, especially for certain nocturnal geckos that don't require intense basking.

The Bottom Line

We have long since moved past the survive phase of reptile keeping and are well into the thrive phase. By moving away from CHEs as a primary source and toward more biologically effective heat like Halogens or DHPs, you’ll see more active, colourful, and healthier animals.

Pro Tip:

Whatever you choose, always run your heat source through a high-quality  thermostat. Safety first, especially when some CHEs can reach surface temperatures of over 300°C!

What are you using to heat your reptile pets this winter? Let’s chat in the comments!

JP Wittstock

18 April 2026