Ultratherm Reptile Heat Pads | Under-Tank Vivarium Heaters for Reptile Enclosures
Ultratherm Vivarium Heaters are trusted under-tank heat pads manufactured in Scotland for over 20 years to exacting European standards. UL listed and built with a unique double-laminated flexible fiberglass construction, these heaters are designed specifically for reptile vivariums — not repurposed from other industries. Available in four sizes to fit a range of enclosures, including sizes that pair perfectly with the belly heat recess option on Kages PVC enclosures.
CHOOSE YOUR SIZE
All four sizes use Ultratherm's low wattage density design, which keeps surface temperatures generally below 95°F — safe for most reptile species. Select the size that best fits your enclosure footprint or belly heat recess:
| Size | Wattage | Best for |
|---|---|---|
| 11" | 15W | Smaller enclosures for hatchlings, ball pythons, juvenile bearded dragons, geckos, and smaller snakes |
| 17" | 22W | Mid-size enclosures (4'–5' range) for adult ball pythons, juvenile boas, corn snakes, and adult bearded dragons |
| 23" | 30W | Larger enclosures (5'–6' range) for adult boas, juvenile tegus, blue-tongued skinks, and other medium-large species |
| 35" | 46W | Extra-large enclosures (7'–8' range and larger) for adult tegus, large boas, large monitors, and other big-bodied species needing a broad warm zone |
Important: Room temperature affects heat pad output. Always test temperatures with a thermostat before introducing your reptile. We recommend pairing any heat pad with a quality thermostat for safe, consistent temperature regulation.
KEY FEATURES
- Manufactured in Scotland for 20+ years — built to exacting European standards with consistent quality control
- UL Listed component — meets recognized North American safety standards
- Low wattage density — gentle, safe heat that typically stays below 95°F surface temperature
- Ready to use out of the box — comes fully assembled, just plug in and place
- Double-laminated flexible fiberglass construction — durable and flexible; designed to conform under enclosures
- Repositionable — use a few small pieces of duct tape or packing tape to secure it, making it easy to remove and move to a different enclosure later
HOW TO USE
Place the heat pad under the enclosure — not inside it. Positioning it underneath keeps the element away from moisture, substrate, and live or frozen/thawed prey items. You can:
- Lay it flat under the enclosure without any tape, or
- Secure it with a few small pieces of duct tape or packing tape for a cleaner setup that still allows for easy removal later
If your Kages enclosure was ordered with the matching belly heat recess, the Ultratherm pad is designed to sit flush in that recessed channel, keeping it protected and positioned directly under your reptile's preferred warm zone.
Why Kages
SLEEK AND MODERN
First and foremost all Kages custom reptile enclosures are made out of animal safe materials. We use ½” extruded rigid PVC, we use this high quality material because of its sleek matte finish, heat retention qualities and not to mention its non porous so it's easy to clean up and doesn't promote bacteria growth like other reptile cages may.
VERSATILE
Kages custom enclosures can be used for a variety of species depending on their individual needs. All of our PVC enclosures have been designed to allow either minimal humidity retention or maximum depending on what the keepers goal is, if you are planning on doing a bioactive setup we suggest adding the additional side vents to promote more air flow. Our enclosures are built out of ½” extruded PVC for its superior heat retention qualities, this great quality will result in needing a lower wattage bulb in your reptile enclosure resulting in energy savings and keeping more of your hard earned money in your pocket.
CUSTOMIZATION
At Kages we believe there is no one size fits all solution to reptile enclosures, so we decided that we would build them custom and build them quickly without any compromises. Here at Kages we make PVC enclosure customization easy, all it takes is a few clicks, just head over to the size of the enclosure you are interested in, select your features, then place your order, and we will get to work quickly building your new PVC enclosure so your pet can have the home of its dreams. We have built a variety of awesome reptile enclosures, from small 12”x12”x12” for hatchlings to 8x4x4 enclosures. If you need a custom sized reptile cage feel free to contact us to design your custom enclosure.
Shipping
- FREE Shipping to Continental United States.
- All of our PVC reptile enclosures are shipped unassembled to minimize shipping costs and prevent damage in transit. We build and disassemble each individual reptile enclosure to ensure a perfect fit. Assembly is very easy and takes about 15 minutes and requires only a Phillips screwdriver, but I would recommend a drill to speed things up.
- Please check our current enclosure lead times: HERE