Paraffin heaters are an excellent solution for heating a greenhouse or outhouse in the winter months and keeping your plants alive.
You can buy these popular heaters relatively cheaply compared to more expensive electric versions, which use more power and tend to take longer to get a room up to the desired temperature. You can buy decent sized paraffin heaters from Two Wests for £41.99 which will suitably heat most greenhouses at a reasonable cost for the fuel.
Paraffin heaters, although allowing you to quickly heat up a space, are a little tricky to use if you want to regulate the temperature which means you should keep a close eye on the heater and only use it when you are present to ensure the light doesn’t go out – which could fill the greenhouse with gas which causes all kinds of problems for your and your plants.
The downside to paraffin heaters is that you are relying on gas canisters or liquid kerosene for the power, which can be used up quickly if you are using the heater often. Gas canisters and kerosene can be bought cheaply from Two Wests and from many camping and caravanning stores to replenish your stores although if you use the heater sparingly you can make the fuel go much further.
Another way to get the most out of paraffin heaters is to make sure that your greenhouse is fully insulated so that the heat that is being produced is being kept inside teh greenhouse for as long as possible. You will need to monitor the temperature constantly to make sure that the temperature doesn’t get too high, but this is an opportunity to see how efficient your greenhouse is by judging the rate of heat loss.
As with any form of liquid fuel, care should be taken when replacing cannisters or refuelling the heater to ensure that the fuel isn’t contaminated or spilled. Always refuel the heater in an open space which is well ventilated to avoid inhaling the fumes which can be toxic.