Passwell makes animal heating pads (240V, 10 watts) which are 260 mm x 360 mm is size, with a soft PVC cover. They are useful for artificial pouches, old, sick and orphaned animals such as marsupials, dogs, cats, birds and reptiles.

The heating pads produce a temperature on their surface of about 20°C above room temperature.

When the room temperature is less than 10°C animals should be placed as close as practicable to the pad surface.

When room temperature exceeds 10°C animals should be insulated from the pad surface by inserting layers of woollen fabric between them and the pad. The thickness of insulation required will depend on the room temperature and should be adjusted so that the animal appears comfortable.  

Measure the temperature where the animal rests with a thermometer. It should be between 25°C and 35°C, depending on the age and type of animal. 

Seek professional advice if uncertain of your animal's needs. Young animals can rapidly suffer heat stress if the temperature is too high.