Parasene The Big Red Heater Code: 591A This is a very powerful easy to use greenhouse heater and is recommended for use in greenhouses of a minimum size of 8' x 10'. This model can also be used in greenhouses up to 14 sq. ms (8' x 14'). Complete with carry handle. Recommended for larger greenhouse. Specifications: Continuous burning time up to 16 hours on one filling. Capacity 4.0 ltrs Power output of 2.5 kW £64.73 Quantity: