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Last Updated On August 19th, 2021

Top 8 Reviews

Best Greenhouse Heater in the UK 2021

Best Space Saver

Hylite Slimline Eco HHT207

4/5
Hylite Slimline Eco HHT207

Editor's choice

Sunhouse SHTTH2 Tubular

4.5/5
Sunhouse SHTTH2 Tubular

Luxury Choice

LightHouse 2kW Electric

4.5/5
LightHouse 2kW Electric

A greenhouse heater is an essential item if you intend to grow flowers and plants. Greenhouses are naturally warm places as the glass absorbs the sunlight, but a heater can make a huge difference, especially during our unpredictable British winters when temperatures can plummet. If you need to invest in this equipment, we have created a list of the best greenhouse heater and nine other high-quality products.

Regardless of the size of your greenhouse, a reliable heating system is important to protect your plants and produce. If there is minimal sunlight or a particularly cold day, you can use a greenhouse heater to boost the temperatures and protect from things like frost. In this guide, we feature a selection of electrical, paraffin, and propane heaters that would be perfect for your greenhouse.

Best Greenhouse Heater List

Best Greenhouse Heater Reviews – Top 8 Picks

The Sunhouse SHTTH2 Tubular Heater is great if you need flexibility in your temperatures. This is due to the built-in thermostat control that allows you to adjust the temperature based on your specific greenhouse needs.

Sunhouse SHTTH2 Tubular

Features

This tubular unit has an 80W heater that should generate plenty of heat for small to medium-sized greenhouses. It is built for continuous operation and should not burn out or overheat. There is also a built-in thermostat at the end that allows you to control the heater temperature.

For protection, this greenhouse heater is splash proof to IPX4 standards. The wall brackets and fixings are also durable. It also has a decent length cable so you can easily connect it to the mains power in your greenhouse, or an extension cord.

This is an excellent greenhouse heater, but you could have a few minor issues. For example, the thermostat may not be the most intuitive to use. Also, this heater is only splashproof whereas many heaters are waterproof to IP55 standards or higher. Lastly, you may benefit from using different screws than the ones supplied as they may not be the best quality.

PROS

CONS

Sunhouse SHTTH2 Tubular
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If you have limited space in your greenhouse, the Hylite Slimline Eco Tubular Heater is a great space-saving option.

Hylite Slimline Eco HHT207

Features

This Hylite tubular heater has an excellent slimline design. As a result, it should not clutter your greenhouse and fit neatly against the walls or on a pre-built heating rack. For installation, it also includes all the required brackets and screws.

In terms of heating, this unit is 90W and has an energy-efficient design. It is also durable and has a splash proof rating of IP44. This means that it should not get damaged if it is sprayed with water accidentally, for example. It is also available in three sizes with the 75cm model offering the greatest heating output.

We like this greenhouse heater, but you may need a couple of them strategically placed in larger greenhouses. Also, some customers have experienced delivery issues resulting in damaged heaters. Lastly, the power cable could be sensitive to movement and turn off the heater if adjusted.

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Hylite Slimline Eco HHT207
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The Lighthouse 2kW electric greenhouse heater is a great product and is highly portable due to its encased design and carry handle. It is one of the best greenhouse heaters that offer precision thermostat controls and a high heating rating. These electric heaters will keep your greenhouse frost-free, but they also provide great air circulation.

LightHouse 2kW Electric

Features

The Lighthouse heater is one solid unit and has a carry handle in the top. It has a front grill that allows the heat to travel through and the grill is spacious to allow a decent airflow. There is also a large control panel that has two dials on – one for the power, and one for the heat, making this heater relatively easy to use.

On full power, this electric greenhouse heater should heat an area in your greenhouse equivalent to 20m2. The air output is also 186 m/3. Once powered, the fan has continuous operation and requires a mains power supply. The overall dimensions of this heater are 230 x 198 x 320mm, and it is lightweight so you can easily carry it as well.

This 2kw greenhouse heater is a great option, but it may not be perfect. Firstly, once powered it provides constant air circulation. This means that it may not have a high level of energy efficiency. Also, due to the constant usage, it could reduce the overall life of the electric fan heater.

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LightHouse 2kW Electric
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The Elixir Gardens TH03B is our choice for the best tube heater. If you want a simple heating element that is easy to use and install, this is a great choice. It has a 180W heating element and connects directly to a mains socket.

Elixir Gardens TH03B Tube

Features

You can buy four versions of this greenhouse heater – from 34cm / 60W to 125cm / 240W option. All have the same design features and fixtures for installation.

This greenhouse heater works great as a low-energy heating solution. Also, it is easy to assemble, and the wall brackets supplied are easy to fit, too. It can be installed in many different ways, but the ideal stance is vertical.

Each tube is also IP44 waterproof from all angles, so don’t worry about stray water dripping from your plants as you water them.

The Elixir Gardens TH03B heater also has an adjustable thermostat. The power switch is isolated and has safety coverings surrounding it.

Although this tube heater is a solid product, it could have a few problems. For example, it has an electrical power cable and this could not be long enough depending on your greenhouse setup. Also, there are no temperature figures on the thermostat dial, so it’ll take a while to get the right level.

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Elixir Gardens TH03B Tube
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The Hyco Tube Heater is a compact and effective greenhouse heater that has a durable design and a low-energy usage for cheap operation.

Hyco Ift Tube

Features

This Hyco product should easily reduce condensation and dampness in your greenhouse and help keep your plants at the optimum growing temperature. It has a robust design and is waterproof to an IP55 rating.

The brackets for mounting are also durable and are made from metal. This should mean that you can install it within no time at all. In terms of the heating element, it provides 45W and runs on an amp rating of just 0.02amp. As a result, it should provide decent heat, without costing a fortune to run.

For connectivity, the heater also includes a 1.3m cable with a standard UK plug.

Despite these benefits, this heater could have some small problems. Firstly, it has a safety cut-off at 15-degrees which some people may not like. Also, for larger areas, it may not give complete heating coverage. Finally, it does not have an adjustable thermostat.

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Hyco Ift Tube
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The Hausen Electric Tubular Heater is a versatile product that offers great heating for small to medium-sized greenhouses. It is perfect for eliminating condensation and reducing dampness in older greenhouses.

Hausen Electric Tubular

Features

This greenhouse heater is available in four different configurations. The sizes range from 1ft to 4ft, and the wattage ranges from 60W to 240W. This means you can easily get a heater that suits the size of your greenhouse.

We also like that the heating element is low-cost and should not dramatically increase your energy bills – even with continuous use. It is also waterproof to a rating of IP55 which should protect it from any condensation or splashes.

This heater also comes with a decent length power cable, and all the fixtures you require to either mount it to a greenhouse wall or the floor.

This is a great low-energy heater but it may not be perfect. For example, it does not have an adjustable thermostat which some people may not like. Also, during installation, you could find that the fixings can be tricky to line up. Lastly, for larger greenhouses and garden buildings, you may need several of these heaters for full coverage.

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Hausen Electric Tubular
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The Dimplex ECOT1FT Tubular is a fantastic choice if you’re looking for a heater with digital thermostat for use in smaller greenhouses. It has a standard tubular design and is also easy to use with minimal controls. Despite the small heating element, this heater still has a decent power output and could be great for frost protection during the unpredictable UK winter months.

Dimplex ECOT1FT Tubular

Features

This heater is a great option for smaller greenhouses. It has a digital thermostat so you can change the output easily. It also has a simple on/off switch and connects to mains power via a standard electrical cable and 3-pin UK plug.

We also like that this heater has some added safety features. For example, it has an auto-reset thermal overload cut-out. This means that the heater should never overload and burnout due to an electrical surge.

All of the parts of the heater are water and dustproof to IPX4 standard including the 1.5m electrical cable and the plug. The digital thermostat also has a frost watch function, and there are 6 potential outputs for different greenhouse settings.

This simple tubular heater is a great option, but it could have a few downsides. Based on an electric greenhouse heaters review, the tubular heater may not have enough power for your whole greenhouse – you may need multiple units. Also, it is thermostatically controlled, but you could find that the temperature accuracy is temperamental.

PROS

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Dimplex ECOT1FT Tubular
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The Tooltime 3ft portable electric tubular greenhouse heater is another great option that is brilliant for heat circulation and a consistent heat supply for any season. It has a traditional splash-proof design and is easy to install.

Tooltime Voche 3ft 135W

Features

This 135 watts greenhouse heater provides an even heat distribution across the whole heat element. As it is a tube heater, it also has a relatively low consumption compared to some other models on this list.

The casing of the element is made from white enamel, and the whole heater is splash-proof to a rating of IP55. This means it should be safe from any condensation and water spillage. It is also CE certified.

For usage and installation, it has a 1.3m cable and is connected to a standard British 3-pin plug. It also comes with all the necessary fittings including wall brackets. You can use these to mount on the floor, shelves, or any solid surface.

This tube heater is a solid choice but it could have a few minor drawbacks. For example, it only has a 1.3m electrical cable. Depending on the setup of your greenhouse, this could mean that you need to use an extension unit. Also, there’s no way to regulate the temperature as it doesn’t come with a thermostat.

PROS

CONS

Tooltime Voche 3ft 135W
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How to Choose a Greenhouse Heater

We have given you the best greenhouse heaters available in the UK, but how do you choose a suitable model for your situation? It can be tricky and we understand this. To help, we have created a short buying guide below so you can easily choose.

Before buying a heater for a conservatory or greenhouse, we first advise assessing your greenhouse. You should have a clear idea of what you are working with, and also how to heat a greenhouse properly. Ask yourself the following questions – how big is the greenhouse? What available floor space is there? What (if any) power outlets do you have inside? What type of plants do you have inside? (Different plants may require different temperatures).

By understanding the above, you can look at the below considerations to choose the best greenhouse heater for your circumstance.

Fuel, or Electrical?

Firstly, there are two main types of greenhouse heater – fuel, or electrical. Fuel heaters typically use either paraffin or propane which is ignited and burned to heat up the required space. This requires no electricity which is a plus.

Alternatively, electrical heaters require mains connections. There are two types of electric greenhouse heater – tube heaters with a heating element, or an electric fan heater which circulates the air. Both of these electric greenhouse heaters require no fuel.

Tube electric heaters generally require less electricity, whilst a greenhouse fan heater will require more power as they have more powerful motors. You must consider this and look at which option would be the most efficient when looking to heat your greenhouse.

Heating Area

You should also consider the heating area. Depending on the power of the greenhouse heater, it will only heat a certain area of your greenhouse. In some instances, depending on the size of your greenhouse, you may therefore need to buy more than one.

Paraffin or electrical greenhouse heaters offer the greatest output and can heat a larger area. In most instances, you will only need one of these to heat your greenhouse. Alternatively, smaller electric heaters have a smaller heating element and thus can only cover a smaller area. You may need a whole setup of tubular heaters, for example.

plants inside polycarbonate shed

Size and Weight

The size and weight of the greenhouse heater are important. This depends on how much space you have in your greenhouse. Some greenhouse heaters are larger and require placing on the floor. Others, like tube heaters, can be fixed to the wall or to greenhouse shelves and require less space.

Fixtures and Installation

mounted heating source in nurseryDifferent greenhouse heaters have different fixtures and installation methods. For example, paraffin heaters, usually require no fixtures and are generally free-standing with legs or a solid base. Alternatively, tubular heaters generally have two brackets so you can screw them to walls or shelves. Some paraffin heaters may need assembly, but they should generally be easier to set up than fixing a tube heater.

Conclusion

We hope you have found this list of the best greenhouse heaters useful. Any of the eight picks we have chosen would make a great option. However, our top pick is the Sunhouse SHTTH2 Tubular Heater. This simple and effective heater has everything you need for your greenhouse.

It is lightweight with a simple design, and also has an adjustable thermostat. This means you can control the temperature depending on what you have in your greenhouse. It also has a low energy consumption use and the 80W heater should give adequate heating for small to medium greenhouses.

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