Abstract: The apparatus includes a transparent enclousre formed with a plurality of heating sources, including a thermostatically controlled resistance heater with a spaced infra-red light source mounted in association with a thermostat to effect heating of the interior of the enclosure. Further, a humidifier in association with a humidistat is mounted in a spaced relationship relative to the heating sources utilizing a separate humidistat to effect selective operation of the humidifier. A flexible heat reflector web is mounted and suspended from an upper framework of the enclosure and suspended from an upper framework of the enclosure and directed downwardly thereof and is selectively furled to selectively provide various heat ranges within the enclosure. Further, the transparent web may be formed of flexible fingers to ease access of a reptile contained within the enclosure between spaced heating zones within the enclosure. A cover is also provided for the organization.