Heat mats are an excellent choice for heating reptile enclosures from below. They are primarily a contact heater though so if being installed in a vivarium they should in most cases be accompanied by an additional overhead heat source. All heat sources must be run through a thermostat to ensure the safety of the enclosure occupant and reduce the risk of fire. The habistat High power heatmats are also useful when mounted on the side of glass enclosures as they have additional power when compared to standard heatmats.