Crested gecko · Safe heat

How do I heat a crested gecko enclosure safely?

Crested gecko heat should be thermostat-controlled across the warm, cool, and nighttime ranges below. Verify animal-level readings with separate digital thermometers.

Safe heat gives a crested gecko guarded warmth, cooler cover, and a genuine nighttime cycle.

Use the practical checks
Adult crested gecko in a tall habitat with guarded overhead heat, measured warm and cool zones, ventilation, and shaded foliage.

The short answer

Control every heater and verify both ends for crested geckos

Crested gecko heat should be thermostat-controlled across the warm, cool, and nighttime ranges below. Verify animal-level readings with separate digital thermometers.

Adult home
At least 45 × 45 × 60 cm (18 × 18 × 24 in) for one adult; larger furnished height is welcome
Warm zone
Basking area 26–28°C (79–82°F)
Cool and night
Cool area 20–24°C (68–75°F); A controlled drop to 18–20°C (64–68°F)
Humidity
RSPCA baseline 40–50% with brief rises toward 80%; RVC guidance 50–70%
UVB
Low-output UVB with a measured gradient near UVI 0.7 to zero shade
Food
A complete formulated crested-gecko diet is typical; use a reviewed plan for suitable insects and supplements

The honest fit

Would the adult routine work in your home?

Do this

  • Control every heater with the correct thermostat.
  • Verify the warm and cool zones with separate digital thermometers.
  • Keep fresh water and monitor crested gecko behavior every day.
  • Record changes so a reptile veterinarian receives useful evidence.

Avoid this

  • Do not trust the thermostat setting as a thermometer.
  • Do not use heat rocks or colored night lamps.
  • Do not copy another reptile species' setup.
  • Do not treat a persistent health change as a shopping problem.
01

Build a usable gradient

Aim for basking area 26–28°C (79–82°F) with cool area 20–24°C (68–75°F). Place several secure retreats across that range so the gecko can regulate temperature without sitting exposed.

Choose the heater from the room, enclosure material, ventilation, and required temperature difference. The goal is the measured result at animal level, not a particular wattage copied from another home.

Adult crested gecko climbing a sturdy diagonal branch through leafy cover at dusk.
02

Put control before heat

Connect each heat source to the correct thermostat, keep probes fixed, and guard any source the gecko could touch. A thermostat controls power; separate digital thermometers confirm what actually happened.

Check the warm surface and cool air every day while the setup is new, after seasonal room changes, and after moving a probe or furnishing. Never use a heat rock or a red or blue night lamp.

Adult crested gecko in a tall planted habitat with sturdy climbing routes, cork cover, a feeding ledge, and fresh water.
03

Let night be night

The nighttime plan is a controlled drop to 18–20°C (64–68°F). All visible lights should switch off so the gecko receives a clear day-night cycle.

If readings suddenly rise or fall, protect the gecko from the unsafe zone and diagnose the equipment before compensating with random extra heaters. Burns, weakness, or abnormal posture deserve reptile-veterinary advice.

Keep deciding

See the complete care picture

Sources and further reading