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Are you on the lookout for the best greenhouse heaters? If you are, then you came to the right place! Today, we are going to discuss four greenhouse heaters and find out which is the best one. In order to do so, we are going to list the pros and cons of using them.

So what about greenhouse heaters? These are actually the best option to provide the right amount of heat in your greenhouse. Some people use heated mattress pads, but they are not really ideal. Why is that? It is because the heat may not be consistent and it only goes so much as the length of the mattress.

In short, if you really have to heat the whole greenhouse, you have to cover the base with mattresses. Therefore, to really ensure the health and proper growth of your plants, using a greenhouse heater is the best.

Are you ready to meet our contenders? Then keep on reading.

Best Greenhouse Heaters: The Top Four Choices

1. Bio Green Greenhouse Heater

We are starting off with a greenhouse heater that has a big capacity in terms of the reach of heat. The Bio Green Greenhouse Heater can easily heat up spaces that are up to 120 square feet. Also, it can be used in greenhouses, storerooms, garages, milk houses, sheds, etc.

This floor-standing heater has a splash-proof IP X4, and it is housed in steel. Further, it has a digital thermostat with an external sensor cable that can measure the current temperature of the greenhouse. It is said to be more cost-effective because the thermostat is very accurate.

Additionally, its heat elements are made of steel. As for the heating output, it is 1500 watts, and it already has fans with bearings so as to keep up the humidity of the greenhouse.

Great customer service
Easy to set up
Heats up fast
Made to last
Controls do not work like they are supposed to
No controls for the fans

2. Comfort Zone Ceiling Mount Quartz Heater

Moving on to the next greenhouse heater, this one is made of metal. Further, its controls only come from a single pull string so it easy to operate. You can customize the heat settings (750 or 1500 watts) as well as the halogen light. What is so special about it is the fact that you can generate heat without using the lights. Instead, you can only use the heater.

There is also a safety system that contains an overheat protection sensor as well as a metal grille that can lower the risk of fire hazards. More than that, there is also a ceiling mount that saves floor space and adds to its safety as well.

Lastly, this greenhouse heater also has a tilting bracket, which is adjustable for up to 90 degrees. In this way, you can apply direct heat to a particular area.

Powerful heater
Does not overheat
Heats up easily
Easy to install
Does not have a fan
Highest setting can destroy the safeguards
Not very customizable
Not shockproof

3. Mr. Heater Propane Radiant Heater

The next greenhouse heater is different from the previous ones in such a way that this needs to be connected to a propane tank. Does that mean that operating this one is dangerous? Not necessarily.

This greenhouse heater shuts off automatically when used in an area that is 7,000 feet higher than sea level. At the same time, it can also automatically close when it is tipped over, if it detects low oxygen levels, or if the pilot light goes out. Hence, combined with your extraordinary diligence, this is safe enough not to cause a fire in your greenhouse.

This unit can heat up a space that is up to 225 square feet. Its heater also has a power of 4000 to 9000 BTU, which can be both used for indoor and outdoor heating. At the same time, it burns clean and is almost 100% cost efficient.

As for its design, it has a handle that can be folded down, and the regulator swivels out. With regard to the regulator, it can be attached to a disposable cylinder, which then connects to another gas supply.

Heat is consistent
Powerful enough to heat up a large space
Easy to set up and use
Very customizable
There is an exposed flame, which is not entirely safe
Emits carbon monoxide
Control knob gets stuck
Not that durable
Some parts might melt

4. Dr. Heater Greenhouse Workshop Infrared Heater

Last but certainly not the least, we have the coolest-looking greenhouse heater. We deemed it that because, out of everything in this list, this one is the most pleasing to the eye in such a way that it does not look like a typical heater. In fact, it looks like a vintage electric fan.

This greenhouse heater also has simple controls, which means that it only has one setting and 1500 watts for its power. At the same time, you do not have to worry about water damage because it has protection against that instance.

Additionally, it can be easily moved from one place to another if you want to concentrate heat in a specific area in your greenhouse. Furthermore, it does not need a lot of maintenance too as it is already lubricated for life.

Lastly, this greenhouse heater has an overheat protection and thermostat control, which will ensure that you always have the right climate in your greenhouse. As for its housing, it is completely made of heavy-duty steel so as to prevent it from melting when the heater is used often.

Easy to use and set up
Does not overheat
Very customizable controls
Lasts for years
Cannot cover a lot of space
Does not heat up to extreme temperatures
Wiring might burn

What Is Our Top Pick?

All four greenhouse heaters are actually good picks. However, if we really need to choose one out of these best greenhouse heaters, we will definitely go with the Dr. Heater Greenhouse Workshop Infrared Heater.

We chose this one, even when it is actually seems to be the weakest out of the four, because it is the product that is less likely to be problematic. In this case, its weakness is actually its strength because this will ensure you that no matter how high you set it to, your plants will not burn. At the same time, the heater itself will not self-destruct.

Best Ways To Heat A Greenhouse

A greenhouse must be installed in a sunny place to take advantage of the natural heat emitted by solar radiation. You will thus save substantial energy and provide all the brightness necessary for the good growth of your plants. To do this, orient your greenhouse so that its longest surface faces south. In summer, it will be enough to bring shade by covering the white windows of Spain, or by installing blinds.

In the same vein, think about choosing a place protected from prevailing winds that would cool the structure significantly. You can install windbreaks or hedges of low heights near the greenhouse to protect it.

Whether you want to preserve your frosty plants, prepare beautiful cuttings, practice early planting that can be installed in the garden in a timely manner, or protect fragile plants, heating the greenhouse is your ally. The various types of heating depend on the surface to be heated and the use that one wants to make of its greenhouse: one will not heat in the same way a huge tropical greenhouse and a small greenhouse intended to preserve plants of orangery frost free.

Types of Greenhouse heaters

heating greenhouses with the best greenhouse heater

Gas Greenhouse Heaters

You can use this type of heating for larger areas (up to 15 m²). With gas, you will save about 30% compared to oil heating while having greater autonomy. Choose a new generation model that will ensure optimal safety of the installation by preventing any uncontrolled gas leakage. Some of them are equipped with a thermostat that keeps a constant temperature.

The fuel used is bottled propane, because butane is too sensitive to freezing and the installation of city gas would be too complicated and expensive to implement.
Easy to install, you only need to connect the connectors directly to your bottle.

Oil Heating Greenhouses

Oil is generally used to heat cold greenhouses and small structures. Ideal for warning fragile plants or to compensate for heat loss at night. It is a practical solution, which you use according to specific needs (cold nights, bad weather, strong wind). Without a thermostat, it requires your intervention to adjust it.

It will also be necessary to think of providing available oil reserves and to refill it quite often. Use only sulfur-free white oil, as other forms of this fuel can release toxic gas to your plants. This type of heating remains easy to install, you can transport it and it is quite economical to use.

Electric heating Greenhouses

You will have the choice between common radiators type blowers and radiant heaters infrared lamp that it is possible to hang from the ceiling. They are practical because they are easily transportable.

For larger areas, you can choose tubular radiators that you will install along the walls. This system ensures a good space saving, but it remains a little more expensive.
For a tropical greenhouse that requires an almost constant temperature with lesser climatic variations, we will turn instead to pulsed hot air generators equipped with a room thermostat and a flexible power regulator at leisure.

Suspended ceiling fans also exist, they have the advantage of brewing hot air in winter and being convertible in summer to ventilate cooler air, they ensure good ventilation of the greenhouse.

Controlling temperature in the greenhouse

reviews and information for greenhouse heaters

Always use a special material whose characteristics correspond exactly to this type of use. Your heating will have to withstand the ambient humidity and any splashing water (watering, leaks).

For all those who do not have the chance to have the place to install a greenhouse in their garden, there are heated mini greenhouses that will allow them to do some planting in the house. They come with a tank heated by a resistance placed in its bottom and covered with a transparent plastic envelope to keep heat and hygrometry these mini greenhouses can be provided with separate compartments to grow several plant species at the same time. You will find them in garden centers or on websites specialized in gardening products.

Some sophisticated models include an adjustable thermostat according to the needs, very practical to germinate tropical plants requiring a strong and constant heat. You can arrange them inside your home near a bright window.

Heat ex-changer system

The concept of closed greenhouse is based on a water or air heat exchanger system coupled to an aquifer located between 25 and 100m deep. This device is reversible and can also cool the greenhouse.

The excess heat produced in the summer by solar radiation during the day is recovered by means of heat exchangers and stored in an aquifer. In return, this warm water is reused in winter to heat the greenhouse.

This system is one of the best ways to heat a greenhouse. It allows you to keep in the greenhouse a maximum temperature during the day between 26 ° and 30 ° C during the summer, and in winter on the coldest nights between 16 and 20 ° C (16 ° C for an outside temperature of -20 ° C). Since the electricity consumption in the greenhouse is limited to fans and pumps, it represents only 10 to 15% of the costs of conventional gas heating.

In addition to saving energy, the closed greenhouse concept offers many advantages that save operating costs and increase agricultural productivity: 75% water saving is achieved through the recovery of condensation. With a rainwater harvesting system, you have total autonomy for watering plants. Closed greenhouse production avoids insect intrusion and limits disease, drastically reducing the use of pesticides.

An artificial supply of CO² allows an increase in production. The effectiveness of CO² intake is much better than in a normal greenhouse. Greenhouses using the ESETA closed method have been shown to be at least 30% better by increasing CO2 levels, avoiding disease and insects, and reducing stress. plants due to better control and greater stability of the environment (humidity and temperature).

The greenhouse becomes a source of energy instead of using it. The unit can produce an excess of hot water that can heat more than one hundred dwellings or another greenhouse.

About Admin

Thomas is an avid gardener and started gardening with his Grandfather when he was just knee high. He has over 35 years experience in landscaping and greenhouse growing and is CAEP certified.

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