Bio Green Phoenix 2.8Kw Electric Greenhouse Heater A stainless steel greenhouse heater with a maximum 2.8Kw heat output which will heat up to 100 sq. ft. and offers frost protection up to 180 sq. ft. The Phoenix is ideal for heating your greenhouse, but can also be used in any room where consistent heat or air circulation is required. Can be used as a fan only, thermostatic heating with fan controlled or thermostatic heating with fan always on for maximum air circulation and prevention of fungus and mould. Included in the Phoenix heater for greenhouses The heaterblower. Suspension chains for hanging and feet for floor standing.