A heater is a must for any greenhouse owner who wants to protect their plants from the harsh winter months. This paraffin heater will help to protect your plants from the dangers of frost, and is highly economical to run. It has a 4.5 litre capacity, and will burn continuously for up to 3.5 days from one filling. This particular heater is ideal for a 5m² greenhouse (6' x 8'), or as an anti-frost heater in a larger structure. It has two elements, which can be turned on together or separately to find the ideal temperature for your greenhouse. It also incorporates a number of safety features, such as the heat spreading guard, and burner and fuel cap seals.