Gardening is a way of life for many. However, when the temperatures drop, and you’re working in the greenhouse, you may wish to invest in a better solution than layers of clothing to stay warm.
You’ll want something that will not only keep you going but also your plants. Seedlings and end of season plants still require tender loving care and just the right amount of heat.
Read on for our expert reviews of the best greenhouse heaters available. Check the latest prices to ensure you get a great deal!
- 1 Our Picks of the 10 Best Greenhouse Heaters
- 2 Best Greenhouse Heaters
- 2.1 1. Bio Green PAL 2.0/GB 2KW Palma Heater with Digital Thermostat
- 2.2 2. CrazyGadget® Large Paraffin Greenhouse Heater
- 2.3 3. Biogreen PHX 2.8/GB Phoenix Electric Fan Heater
- 2.4 4. Biogreen WM-P5 Warmax Power5 Paraffin Heater
- 2.5 5. SUNHOUSE SHTTH2 80W Low Energy Tubular Heater
- 2.6 6. Dimplex ECOT2FT Tubular Heater
- 2.7 7. LightHouse 915mm 135W Eco Heat Greenhouse Heater
- 2.8 8. Large Parasene Electric Greenhouse Heater
- 2.9 9. Eden Gas Greenhouse Heater
- 2.10 10. Simplicity Heater Set 2kW Greenhouse Fan Heater
- 3 Greenhouse Heater Buying Guide
- 3.1 Features To Look For In Your Greenhouse Heater
- 3.2 Conclusion
- 3.3 Guide to Heating Your Greenhouse During the Colder Months
Our Picks of the 10 Best Greenhouse Heaters
Bio Green PAL 2.0/GB 2KW Palma Heater with Digital Thermostat
CrazyGadget® Large Paraffin Greenhouse Heater
Biogreen PHX 2.8/GB Phoenix Electric Fan Heater
Biogreen WM-P5 Warmax Power5 Paraffin Heater
SUNHOUSE SHTTH2 80W Low Energy Tubular Heater
Dimplex ECOT2FT Tubular Heater
LightHouse 915mm 135W Eco Heat Greenhouse Heater
Large Parasene Electric Greenhouse Heater
Eden Gas Greenhouse Heater
Simplicity Heater Set 2kW Greenhouse Fan Heater
Best Greenhouse Heaters
1. Bio Green PAL 2.0/GB 2KW Palma Heater with Digital Thermostat
Have you been looking for a sturdy and reliable heater for your greenhouse? If you answered yes, then your search ends here. Look no further than the Bio Green Palma Heater with Digital Thermostat. Don’t be fooled by its compact design. This heater packs a punch without wasting energy. Keep reading to learn more about the features of this cost-effective heater.
Powerful Greenhouse Heater
This electronic fan heater by Bio Green proves to be an excellent addition to your greenhouse. It boasts of 2.0 kW heating power, which should be more than enough for your needs. It circulates warm air quickly and evenly to ensure that any cold air pockets are removed.
It’s not often that you stumble upon a heater that doesn’t only function well but looks great at the same time. This floor-standing heater is made largely from stainless steel, giving it a luxurious appeal. Not to mention, it’s very durable as well, giving you excellent value for your money.
The temperature accuracy of the Bio Green Palma Heater is simply outstanding. Because of this, expect a lower energy consumption than other heaters on the market. You can even set the temperature in the minus range using the digital thermostat.
- Portable – While it’s most popularly used in greenhouses, the Palma heater can also be placed in damper rooms like basements, garages, and workshops. It’s portable so you shouldn’t have problems moving it around.
- Simple yet elegant design – This heater looks great wherever you decide to place it. It has a simple look that will surely stand the test of time.
- Splash-proof – It has IPX4 protection, which means it is splash-proof in all directions.
- Thermostatic control comes as a separate item, so you have to shell out a few extra pounds for the bundle.
2. CrazyGadget® Large Paraffin Greenhouse Heater
Do you want to add a heater to your greenhouse but don’t want another electric fan heater? If so, then you should definitely consider the CrazyGadget® Large Paraffin Super Warm Heater. You might find it surprising how cheap this product is. But just because it has a low price tag doesn’t mean it’s no good. In fact, this can prove to be the best heater for your particular needs.
5 Litre Capacity Tank
This heater comes with a large tank with a maximum capacity of 5 litres. Because of its sheer size, the heater can burn for up to 80 hours on one fill. For small greenhouses, this should be more than enough.
One of the best things about paraffin heaters is their portable design—and this one by CrazyGadget® is no exception. There are zero power cables, so the unit is extremely easy to move around.
Carbon Dioxide Emissions
The rising popularity of paraffin heaters is mainly attributed to carbon dioxide emissions. As you know, this gas is vital for plant growth.
- Large capacity – Since the tank can hold up to 5 litres, you have plenty of time before you need to refill. On the average, one fill lasts for 2 to 3 days.
- Cheap operation – If you don’t want to increase your electricity bill, then this paraffin heater should be on top of your list. This applies in particular if you can get fuel for cheap in your area.
- No cables – Cables can be extremely bothersome at times, but they’re not a problem when you go for this heater.
- Affordable – This heater is much cheaper compared to electric fan heaters.
- Manual operation – Since it isn’t electric, you need to turn off the heater manually.
- Can be expensive – In case you live in an area where fuel is expensive.
3. Biogreen PHX 2.8/GB Phoenix Electric Fan Heater
Keeping your greenhouse free of frost has never been this easy. With the Biogreen PHX 2.8/GB Phoenix Electric Fan Heater, you can protect greenhouses of up to 180 sq. Ft. from frost. The fan heater produces ample heat and circulates the heat around the greenhouse using the inbuilt fan. Moreover, Bio Green has optimised this greenhouse fan heater to be easy to use and they manufacture it to be durable.
3 Heat Output
The Biogreen PHX 2.8/GB Phoenix Electric Fan Heater has 3 heat output options in the form of 1000W, 1800 W, or 2800 W. The variety of these settings allows users to precisely control the heat the output to closely match your needs.
Heating And Cooling Capabilities
The smooth running fan allows you to use this unit for cooling as well as heating. When the fan runs on its own, it functions cool your greenhouse. However, when used in conjunction with the heating element, the fan works to circulate the heat produced.
The heat circulating fan is designed to run smoothly and quietly. With these qualities, the Biogreen PHX 2.8/GB Phoenix Electric Fan Heater is not a nuisance in your greenhouse. It runs quietly in the background.
Variety Of Installation Capabilities
This greenhouse fan heater comes with floor mounting brackets and hanging chains. You can, therefore, install the heater in a wide variety of locations depending on your needs.
Given that most greenhouses have irrigation systems, Bio Green has designed this greenhouse fan heater to withstand water sprays. You can use the heater in your greenhouse, knowing that small water sprays will not affect the heater.
- Robustly build for durability; the heating element is sturdy and durable as well
- Runs smoothly and quietly
- Easy to operate with efficient controls for heat output
- You can use the heater on its feet or suspend the heater from
- The thermostat could be more accurate
4. Biogreen WM-P5 Warmax Power5 Paraffin Heater
The Biogreen WM-P5 Warmax Power5 Paraffin Heater is just what you need when you want to keep your greenhouse warm. This heater will keep your greenhouse frost free. It has a single burner and uses paraffin for the fuel. This heater is easy to use and you can easily adjust it so you get just the right level of warmth. The heater has a two year guarantee so you have peace of mind when you buy it.
The single burner ensures that you end up with uniform heat distribution in your greenhouse. The heater will keep greenhouses of up to 5 M2 warm. The multiple burners ensure that you end up with the right level of heat for your greenhouse.
Long Burning Time
The Biogreen WM-P5 Warmax Power5 Paraffin Heater features a 40 percent longer burning time. This is because the wick is extra long. The long wick allows the heater to run for a long time without you needing to add more paraffin, saving you money in the process.
Easy To Operate
The heater is very easy to operate and light. It is simple to use and once you have it assembled it is going to be very easy to turn on.
The simple and attractive design looks good in any greenhouse. The design also allows the unit to save energy. Your plants are going to be healthier since they won’t be battling the cold. If you want to make sure that your greenhouse is going to be healthy make sure that you choose the Biogreen WM-P5 Warmax Power5 Paraffin Heater.
- Equal distribution of warmth in greenhouses up to 5 M2
- Single burner makes heater easy to operate and turn on
- 40% longer burn time due to the extra long wick
- Assembly can be tricky
5. SUNHOUSE SHTTH2 80W Low Energy Tubular Heater
This 80W low-energy tubular heater makes a good space-saving addition to any room. The heater is designed to be run continuously, putting out a steady and safe level of heat. This low-energy tubular heater is ideal for greenhouses and protecting against frost and avoiding damp in utility rooms and storage areas.
Designed for Constant Operation
The heater consumes very little energy and is designed to be run continuously. This 80W unit will heat up to its operating temperature within just a few minutes and then relies on its thermostat controller to manage itself after that. The heater will cycle periodically to maintain a stable temperature and minimise energy use.
Comes With Everything You Need
This affordable heater has a built-in thermostat and comes with wall mounting brackets so it is ready to install right away, no fuss, no hassle, and no complex wiring needed.
Safe and Splashproof
The heater is splash proof to IPX4 requirements, so you can use it in a kitchen or on a bathroom wall. Note that splash proof does not mean ‘can get wet/be used in the shower’, but the device will cope with steam and splashes.
This is an affordable and highly energy efficient heater, designed to maintain a stable temperature in small spaces. If you need to heat a bigger space, use multiple heaters or opt for a 120W variant.
- Low energy use
- Designed to be run constantly
- Set and forget thanks to the thermostat
- Ideal for preventing frost/damp in your greenhouse
- Wall brackets included
- Works well in small spaces
- Costs just a few pence per day to run
- While the device is efficient, heat does not project far
6. Dimplex ECOT2FT Tubular Heater
Are you looking for a small heating solution space for a small greenhouse? The Dimplex ECOT2FT Tubular Heater is the appliance you are looking for.
This tubular heater consumers little power and it can easily be fixed above your windows, doors and even in small spaces such as cupboards. It is highly energy-efficient meaning that you will not consume a lot of power.
Additionally, it comes with an in-built thermostat meaning that you can control how it heats your spaces. If you were looking for a safe, affordable and highly functional heating solution, this is it.
Can Be Installed in Small Spaces
The Dimplex ECOT2FT Tubular Heater is only two feet in size meaning that it can fit in even the smallest spaces. It also comes with very discreet mounting brackets meaning that people will not even notice you have a heater. Once fitted, it can easily pass for a fluorescent bulb.
It Is Very Safe
This heater comes with a thermostat meaning that you have control over how your spaces get heated. Additionally, it also has a cut-out switch for extra safety.
It Is Highly Energy-Efficient
With this heater, you no longer have to worry about ballooning power bills. Not only do you have control over the heating in your property, this heater also consumes very little power when in operation. The Dimplex ECOT2FT Tubular Heater is the perfect blend of affordability, functionality, safety and energy-efficiency.
- Consumes very little power when operating
- The power input can be interchanged easily
- It is very stylish since it comes with discrete mounting brackets
- Can effectively heat different types of spaces
- It is splash-resistant
- Users can control the heating using the in-built thermostat
- It is designed for maximum safety
- Cannot heat huge spaces effectively
7. LightHouse 915mm 135W Eco Heat Greenhouse Heater
If you grow any plants in a greenhouse, you probably know that they have very unique heating needs. Fluctuations in temperature can affect your plants negatively. To keep your plants growing healthily, you definitely need to ensure that they have access to the right temperature levels during seasons like autumn and winter.
How can you ensure that your plants get the right temperature levels? It’s simple simply acquire the LightHouse 915mm 135W Eco Heat Greenhouse Heater. This heater is specifically designed for use in greenhouses. On installing it, you will get to protect your plants from any fluctuations in temperature and humidity.
This heater is very cost-effective and affordable. With this heater, you do not have to accrue huge power bills to give your plants the right growing environment. These heaters consume very little power and they are highly energy-efficient.
With the wrong type of heater, you can end up accruing huge utility bills during cold seasons when attempting to give your greenhouse plants the right environment. This heater consumes very little power and it functions very effectively. If you are looking for a balance between affordability, energy-efficiency and lower power bills, this is the appliance for you.
Depending on the heating needs of your plants, this type of heater comes with varying heat output.
Additionally, depending on the location of your plants, you can either place this heater on a ground surface or mount it on a wall. This means that this heater can serve you effectively whether you have seedlings or fully-grown plants.
Easy to Use
To give your plants the right growth environment, you simply need to plug the LightHouse 915mm 135W Eco Heat Greenhouse Heater into a power source and turn it on. No complicated installation procedures, just plug in and use.
- Consumes very little power
- Highly energy-efficient compared to other greenhouse heaters
- It is very affordable
- Easy to use
- Can be mounted on walls
- The power chord of the heat is not that long meaning that you may have to make changes to your electrical setup when using this heater
8. Large Parasene Electric Greenhouse Heater
Keeping your greenhouse is easy when you choose the Large Parasene Electric Greenhouse Heater. You get up to 2000W of instant heat with this heater. The fan ensures that the heat is distributed evenly. This heater is easy to use and it is also easy to clean. The portable design allows you to move the heater easily around to wherever you need it. The heater also has overheat protection which gives you peace of mind if you are using it in your greenhouse or garage.
Two Power Settings
The Large Parasene Electric Greenhouse Heater features two powerful heat settings so you get just the right amount of heat. The low setting is 1000W and the high setting is 2000W. You get instant heat as soon as you turn the unit on so it won’t take a long time to start feeling the warmth.
The temperature is easy to adjust. This means you can easily choose the right amount of heat you receive for any type of situation, whether you are heating a garage or a conservatory.
If the heater overheats or gets tipped over, the overheat protection will kick in and the heater will turn off. This gives you peace of mind when you use it and ensures that you won’t have to worry about a fire or other problem when you use the heater. Additionally, the heater is IP24 approved.
Easy To Move
Even though the heater puts out a lot of heat, it is still very easy to move around. It has convenient carry handles that allow you to move the heater around very easily.
- Overheat protection prevents fires
- Unit puts out a lot of heat
- Two power settings make the heater easy to adjust
- Fan keeps running even if the heat is off
9. Eden Gas Greenhouse Heater
The Eden Gas Greenhouse Heater is used to keep your greenhouse warm during those cold nights and days. Plants require warmth to grow and some are temperature sensitive they cannot withstand the cold weather. If you have a greenhouse and you would like to keep it warm this is the device.
It is manufactured in Europe with the highest standards of quality. It is designed for maximum performance. It is highly reliable and heats up a greenhouse very fast. The greater uses propane gas as the main source of fuel. It burns the propane gas to produce heat that is distributed in the greenhouse. It is thermostatically controlled to maintain maximum temperature and efficiency.
The heater comes with an inbuilt thermostat. The thermostat is used to maintain temperature levels at a desired optimum. The thermostat will automatically shut off the heater when desired temperatures are reached. When the temperature goes below the desired level, the thermostat will switch on the heater to bring the temperature back up.
37 Mbar Regulator
The heater comes with a 37 Mbar regulator that controls how much fuel goes into the heater. The regulator prevents excess fuel from reaching the heater and preventing an overheat scenario.
Piezo Ignition And Safety Valve
This is the device that automatically switches on and off the flame inside the heater. It is connected to the thermostat. The two work hand in hand to control the flame and therefore control the temperature of the greenhouse. The ignition happens automatically and doesn’t require any human intervention.
- Made with high quality materials and it is durable
- Thermostatically controlled to achieve and maintain optimum levels of temperature
- Extra feet base for improved stability
- Self igniting burners to remove any need for human intervention, making it easy to use
- Oxygen depletion system that helps monitor the level of oxygen in the greenhouse to allow combustion to take place
- Consumes a lot of fuel
10. Simplicity Heater Set 2kW Greenhouse Fan Heater
The Simplicity Heater Set 2kW Greenhouse fan heater is newly developed to provide heat in outbuilding and greenhouses. It has a string metal casing, the casing has been coated with powder paint, the paint is shiny and attractive with a anthracite colour. It is definitely better and lasts longer than heaters made of plastic.
The heating element is made out of stainless steel, this means the element is durable and can produce heat for long without reducing its integrity. It Is fitted with a good quality fan to propel the heat from the element, the fan circulates c. 186 cubic metres of air every hour. This will make sure that heat is evenly distributed in the greenhouse.
Stainless Steel Heating Element
The heating element is made out of high quality stainless steel that is made to last for long. It also works very efficiently to generate enough heat for whole greenhouses.
For a device to be safe to be used in a greenhouse, it must be IPX4 rated and above, this means that it is basically safe if it were to encounter an accidental spill or some wet conditions. The heater is IPX4 rated meaning it is safe for use in a greenhouse.
The heater is fitted with a thermostat to regulate temperatures. The thermostat helps to maintain set temperature by switching off the heater once it senses the temperature is optimum. When the temperature drops, it automatically switches on the heater till the optimum heat level is achieved.
Two Preset Heat Settings
The heater had two set heat outputs. It can output 1kW if heat or 2kW of heat. The heat you choose is highly dependent on the weather, plant preference and other factors.
- It has a good fan hence it heats up a greenhouse evenly
- Thermostat helps maintain optimum temperatures
- The fan can be used solo during the summer
- Cannot properly heat up a big greenhouse
Greenhouse Heater Buying Guide
You may find that during the colder autumn, winter and the earlier spring days you require some form of heat in your greenhouse. This guide will help you to determine which type of heater will best suit your needs. From a small heater that will work well in your propagation greenhouse to larger commercial-sized greenhouses, you’re sure to find what you’re looking for.
There are many things that you’ll want to consider regarding your greenhouse heater. You’ll want to consider how large or small your greenhouse is, what sort of energy you plan to use and how energy efficient the heater is that you’ve chosen, and you’ll want to know what the ratings are before you invest your hard-earned money into one of these heaters. We’ve compiled it all right here to make it easier than ever for you to find what you’re looking for.
Features To Look For In Your Greenhouse Heater
Not all greenhouse heaters are created equally so you’ll want to know all of the variables that may have an impact on the particular type of heater that you select for your greenhouse.
Before you embark on your journey to purchase a new greenhouse heater, you’ll want to consider the following:
The Size Of Your Greenhouse
Your greenhouse may be smaller or larger than others around you. You’ll want to select a heater that is designed for the square space of your greenhouse. Read the specs on the heaters that you’re considering and make sure that you’re purchasing a heater that will fulfil the needs and requirements for your particular greenhouse size.
There are many options here. You can select from electric heaters, fan heaters, halogen heaters, propane or even a paraffin heater. All of them will work to warm your greenhouse, however, each of them will run slightly differently. If you’re going to use a propane heater, for example, you’ll want to ensure that you have the proper type of ventilation so that no one is overcome with propane fumes.
If you don’t have power to your greenhouse, you certainly won’t want an electric heater out there. Be sure to consider all of your options before you make your final decision. You’ll also want to consider whether or not the heater that you’re considering has a fan with it to help propel the heat out to the outer areas of the greenhouse. A fan can help to disperse the heat in and around your greenhouse making for even heating and a more evenly dispersed heating to ensure optimal plant growth.
The power rating of your heater will help you to determine if it has enough power to generate the type and amount of heat that you will require for your specific sized greenhouse. Since each greenhouse is slightly different you’ll find that these vary greatly as well.
The power rating will determine the square footage of the heater unit’s ability to heat the greenhouse. Some will also be energy rated to give you the most power in comparison to the amount of energy that is used to heat your greenhouse. You’ll also want to consider a heater that will automatically shut itself off when the right temperature has been reached in the greenhouse. The heater should then turn itself back on accordingly when the temperature drops below the temperature threshold that you’ve set.
Before you begin on your quest to find the best greenhouse heater, you’ll want to have a budget in mind. Greenhouse heaters come in a wide array of budget-friendly solutions. Depending on what you’re looking for you’ll find that there is a vast difference in the overall cost of a greenhouse heater depending upon the size and the amount of power that it generates.
Set your budget before you begin and then do your research so that you can stay within your budget. This will help you to spend only what you can afford and not go over budget.
Different heaters are going to sound different so get a feel for what sorts of sound you’re willing to tolerate in your greenhouse. If you’re seeking a very quiet greenhouse you may not want to invest in the greenhouse heater that has a nosier motorised sound over a silent sounding version.
Fans and other features can also add sound to the particular type of heater that you’re looking at so be sure that you consider all of these factors and don’t be afraid to ask questions of the manufacturer or of other users. The more questions you ask, the more informed of a decision you can make in regards to which greenhouse heater you’re going to choose.
Depending on the particular plants that you’ll be growing in your greenhouse, you may need a more industrialised model as opposed to an everyday space heater type model. Consider what you’re growing and the purpose (personal or to sell) when you’re determining which type of heater to purchase for your greenhouse.
The more information you read and gather before you go shopping, the more armed you’ll be to make the best possible greenhouse heater purchase. You can purchase a heat lamp style heater, or a very large industrial-sized greenhouse heater depending on your needs and your budget.
Most people choose something that is middle of the road and focus on the specific features of size and convenience when they buy a greenhouse heater. If you’re planning a commercial-sized greenhouse operation, you’ll want to consider the best that money can buy to ensure that you’re going to be able to use it for the foreseeable future.
If you’re only concerned about a smaller more family-sized greenhouse you’ll be able to save a bundle and opt for something much smaller and more budget-friendly. Keeping your greenhouse warm in the winter months is easy when you buy the right size and type of greenhouse heater.
Guide to Heating Your Greenhouse During the Colder Months
When it comes to capturing and storing heat from the sun, greenhouses excel. However, when winter comes and sub zero temperatures become the norm, your plants will appreciate some additional assistance in this regard.
If you are looking to protect your warm weather plants from freezing temperatures during winter with the help of a greenhouse, use the expert tips listed below to make your structure as warm as necessary.
Start By Positioning Your Greenhouse Correctly
The first step towards keeping your greenhouse as warm as possible during winter months involves proper positioning.
When putting up the greenhouse, make sure that it is in an east to west position, lengthwise, ensuring that one of the longer sides is facing southwards; thus being directly exposed to the sun. The northern facing side should preferably run along a wall or fence. This helps shield this side from direct winds thus providing some much needed insulation.
You can further protect your plants from sub zero winter temperatures by properly insulating the structure.
To minimise the loss of heat, clip bubble wrap along the inside of the structure. Alternatively, you can use sheet foam insulation to get the highest level of insulation during the night if you have a plastic greenhouse. Moisture proof insulation should be used to insulate the northern facing wall in glass greenhouses.
Take Advantage Of Compost
Providing your plants with the right nutrition is essential, if they are to get through the winter season unscathed. Using an organic fertiliser is highly recommended.
However, did you know that you can provide the necessary level of nutrition and keep the green house warmer for your plants by simply string your compost within the structure, preferably in a central location? Well now you do. Storing the compost in the structure also protects it from any loss of nutrients that may be occasioned by exposure to rainfall.
Build Thermal Mass
Any object that is capable of absorbing heat during the day and giving it off during the night, when temperatures dip, is referred to as thermal mass.
You can create thermal mass in your greenhouse by following a few simple tricks. The easiest way involves using black coloured capped containers filled with water that is also black in colour – using black food dye – . This maximises the heat absorption capabilities of the water.
The containers should then be distributed all over the structure, in direct exposure to sunlight.
Get A Heating System Designed Greenhouses
If you still need to raise the internal temperature of your greenhouse, consider getting a heater that is specifically designed for this purpose. From fuel and paraffin oil to electric powered systems, the market is full of affordable and effective options.
When shopping for the perfect heater, remember to match it to the requirements of your plants; you can save a lot by avoiding units that are too powerful for the intended purpose.
Once you get the heater, position it in a way that directs airflow where it is needed; the most vulnerable plants.
With these tips in mind and practice, keeping your greenhouse and the plants therein, sufficiently warm during freeing winter weather will be much easier.