Palma Twin Greenhouse Heater - PAL T-US Air Circulation Heater - See Disc The Bio Green PAL-TUS Air Circulation Heater, also known as the Palma Twin Greenhouse Heater, is an efficient heating solution designed to maintain a consistent temperature in greenhouses or similar enclosed spaces. Sporting a sleek silver color, this model is equipped with a round thermostat shape for easy temperature regulation. Included with the heater are installation and operating instructions to ensure a straightforward setup and use. While the country of origin remains unspecified, the PAL-TUS model is a trusted choice for those in need of a robust heating system suitable for a variety of agricultural and gardening applications. Item on exterior is very good condition with general wear. The fan works but no heat. Can be fixed or used for parts. See photos.