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Best Heater For Small Greenhouse (2024 Update)

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If you’re looking for a way to keep your small greenhouse at the perfect temperature during the colder months, then investing in a good heater is essential. With so many options available, it can be difficult to know which one to choose. Here are some factors to consider before making your purchase.

Firstly, think about the size of your greenhouse. You’ll need a heater that is powerful enough to heat the entire area, but not so powerful that it wastes energy. Next, consider the energy efficiency of the heater. A more efficient heater will save money on your energy bills in the long run. Look for heaters with built-in thermostats, as these will automatically turn the heater off when the desired temperature is reached, rather than wasting energy by continuing to heat.

When choosing a heater, you may also want to think about the type of fuel it uses and the noise level. Propane heaters tend to be more powerful, but they also require a gas supply and can be noisy. Electric heaters are quieter and more convenient, but may not be as powerful.

Do you want to ensure that your plants thrive all year round? Want to avoid having to shut down your operations during the winter months? Then a small greenhouse heater may be just what you need. But with so many different choices, it can be tricky to know which one to go for. Do you prioritize cost or energy efficiency? Are you looking to heat a particularly large greenhouse or one that is very small? Do you want a quiet heater or one that packs a lot of power? Consider these and other factors when making your choice to find the best heater for your needs.

10 Best Heater For Small Greenhouse

# Product Image Product Name Product Notes Check Price
1
This product is ideal for outdoor spaces like patios, garages, and industrial workshops as a ceiling mounted electric heater.
2
Ideal for providing fast heating and overheat protection in greenhouses, grow tents, and workplaces with spraywater proof IPX4 feature.
3
This product is ideal for providing fast, portable, and safe indoor and patio heating all year round.
4
Ideal for providing fast heating and precise temperature control in greenhouses, grow tents, and workplaces with overheat protection.
5
Ideal for controlling temperature in various settings such as homebrew fermenters, greenhouses, and terrariums.
6
Ideal for heating outdoor spaces, greenhouses, garages and offices with PTC fast heating, overheat protection and 3 modes.
7
Ideal for providing portable fast heating with an adjustable thermostat in spaces such as greenhouses, garages, offices, and workplaces.
8
The product is ideal for heating and regulating temperature in greenhouses for optimal plant growth.
9
This product combination is ideal for providing heat and temperature control for greenhouses or indoor gardening spaces.
10
This product is ideal for heating small indoor spaces such as greenhouses, grow tents, and workplaces with overheat protection and fast heating.
This product is ideal for outdoor spaces like patios, garages, and industrial workshops as a ceiling mounted electric heater.
Ideal for providing fast heating and overheat protection in greenhouses, grow tents, and workplaces with spraywater proof IPX4 feature.
This product is ideal for providing fast, portable, and safe indoor and patio heating all year round.
Ideal for providing fast heating and precise temperature control in greenhouses, grow tents, and workplaces with overheat protection.
Ideal for controlling temperature in various settings such as homebrew fermenters, greenhouses, and terrariums.
Ideal for heating outdoor spaces, greenhouses, garages and offices with PTC fast heating, overheat protection and 3 modes.
Ideal for providing portable fast heating with an adjustable thermostat in spaces such as greenhouses, garages, offices, and workplaces.
The product is ideal for heating and regulating temperature in greenhouses for optimal plant growth.
This product combination is ideal for providing heat and temperature control for greenhouses or indoor gardening spaces.
This product is ideal for heating small indoor spaces such as greenhouses, grow tents, and workplaces with overheat protection and fast heating.

1. Mtplum Electric Hanging Patio Heater – Greenhouse Approved

This wall-mounted infrared heater is a must-have for those who want to feel warm and comfortable in their indoor and outdoor spaces. With its gentle and rapid heating process, it effectively generates convective hot air throughout the room without any disturbance from noise.

The heater boasts a high-power working power of 1300W, making it an ideal heating choice for terraces, bedrooms, living rooms, garages, offices, and even public places such as restaurants. It is versatile enough to meet the different needs of its users, and with its three adjustable heating modes of 800W/1000W/1300W, it can easily cater to individual preferences.

Safety is a top priority with this heater, and users can rest easy knowing that no harmful odors, chemicals, or fumes will be produced during use. Furthermore, it features double protection that automatically shuts down the device in case of overheating or tipping over.

The all-steel shell material of the heater adds a touch of elegance to any setting, and it can easily match with any kind of decoration. Plus, the heater comes with a 1m adjustable chain that allows for easy adjustment of the height or position of the device.

With its remote control feature, users can operate the heater with ease, making it a convenient and practical addition to any indoor or outdoor space. Overall, this wall-mounted infrared heater is a reliable and efficient heating solution that provides a comfortable and safe environment for its users.

2. Ipower Digital Heater Fan: Fast, Safe, Sprayproof.

Looking for a reliable and efficient heater that can keep you warm during chilly days? Look no further than this high-quality heater, equipped with a range of features that make it ideal for use in a variety of settings.

One of the key benefits of this heater is its overheat protection, which ensures that the device will automatically shut off if it reaches a potentially dangerous temperature. This feature makes it a safe choice for use in areas such as greenhouses, barns, and grow tents, where heat can easily build up and cause damage.

In addition to its safety features, the heater also boasts a high-accuracy thermostat controller that allows you to set the temperature to your exact specifications. The professional-grade waterproof temperature probe has a working temperature range of -58 to 230°F, while the controller itself can handle temperatures from -40 to 176°F. Plus, the digital display supports units in both Fahrenheit and Celsius, making it easy to read and adjust as needed.

With an effective range of up to 160 sq. ft, this heater is ideal for use in a variety of settings, including greenhouses, garages, workshops, and offices. And with its spray waterproof design, you can rest assured that it will withstand the elements and provide reliable heating for years to come.

Finally, this heater comes with a 1-year warranty, ensuring that you can enjoy peace of mind and hassle-free operation for many winters to come. So why wait? Invest in this top-quality heater today and experience the warmth and comfort you deserve! If you have any questions or concerns about this product, don't hesitate to contact the customer service department for assistance.

3. Fastheat Pro: Portable 1500w Space Heater

The HUNTINGOOD heater and fan combo is a portable and efficient solution for those seeking warmth and comfort during the colder months. With adjustable heat settings and a 1500 watt engine, this ceramic space heater can quickly heat up any room in just 3 seconds. Its PTC technology ensures an even distribution of heat, while also providing energy savings and a longer service life.

This electric space heater can be used as a fan to promote air circulation, making it a versatile option for year-round use. Its safety features ensure that the unit will remain safe, even when the temperature is too high. The PTC material is designed to protect the safety of you and your family, while the overheating system will stop increasing heat when the surrounding temperature reaches 86°F.

The HUNTINGOOD heater and fan combo is also portable and easy to take with you wherever you need it. Its compact size and built-in carrying handle make it convenient to move from room to room. Whether you need to warm your hands and feet in your office or use it in your garage, kitchen, or living room, this indoor portable heater is a great choice.

HUNTINGOOD is confident in the quality of their product and offers a one-year warranty. Their electric heater is produced under strict quality control to ensure that their customers receive a high-quality product. If for any reason you are not satisfied with your purchase, HUNTINGOOD offers a full refund or replacement. The return process is easy and hassle-free, simply log in to Amazon and request a return, choosing "Bought by mistake" or "Unwanted item" with "No comment" and the return will be processed.

Stay warm and comfortable with the HUNTINGOOD heater and fan combo, a safe and efficient solution for all your heating needs.

4. Ipower Digital Heater With Cooling Control & Overheat Protection

The floor-standing greenhouse heater is a must-have for anyone who wants their plants to thrive even in harsh weather conditions. This heater is equipped with multiple features that ensure your plants are protected from the cold while maintaining optimal temperature levels.

One of the most notable features of this heater is the internal heat limiting thermostat and overheats protection circuit. This feature ensures that the heater automatically shuts off when it reaches a potential overheat temperature, preventing any potential damage to the heater or your plants. In case of an overheat, simply unplug the heater, allow it to cool down for 10 minutes, and then restart it.

The high accuracy thermostat controller allows for adjustable heating range from -58°F to +210.2°F, and the digital display supports units in both Fahrenheit and Celsius. With a working temperature range of -40 to 176°F, this heater is perfect for areas up to 160 sq. ft such as greenhouses, garages, workshops, and offices.

In addition to its outstanding functionality, the heater also boasts a convenient design. The high air circulation fan ensures that mold formation on your plants is kept at bay, while the floor-standing design makes it easy to move the heater around as needed.

Finally, the product comes with a 1-year warranty, so you can rest assured that you are investing in a high-quality product that is backed by excellent customer service. If you have any questions or concerns about the product, the customer service department is always available to assist you.

5. Inkbird Thermostat: Precise Temperature Control For Homebrewing & Gardening.

Introducing the top-performing temperature controller that is perfect for your refrigeration and heating equipment needs! This easy-to-use device is designed with a dual relay feature that supports both refrigeration and heating equipment as conditions change, ensuring optimal temperature regulation.

Say goodbye to the hassle of switching between temperature displays, as this device boasts a dual display window that shows both the measured temperature and set temperature at the same time! The device also comes with a buzzer alarm that offers high and low temperature alerts to keep you informed when the temperature exceeds the desired range or when the sensor experiences a malfunction.

Safety is a top priority, which is why this temperature controller is designed with a maximum output load of 1100W (110V). Additionally, the device allows for customization of temperature and compressor delay, helping to protect your refrigeration/heating equipment from damage.

With its user-friendly design and reliable features, this temperature controller is a must-have for anyone looking for optimal temperature regulation for their refrigeration and heating equipment. So why wait? Get your hands on this top-performing device today and experience the benefits for yourself!

6. Heatmaster Pro: Portable Electric Outdoor Heater

The AKUSAKO Portable Space Heater is a reliable and versatile electric fan heater that comes with a long cord, making it ideal for use in various settings such as bedrooms, workplaces, and greenhouses. With a cord length of approximately 89 inches, this space heater can be positioned in any part of the room, providing comfortable warmth in a wider range. The heater is also designed with a 90° tilt rotation feature, which ensures that the heat is distributed evenly across the room.

This portable space heater is combined with a compact and lightweight design, making it easy to move around with its built-in carrying handle. The device is suitable for use in different rooms, including the office, kitchen, and living room. The AKUSAKO Portable Space Heater has three heat settings: fan-only, low, and high heat, which can be adjusted to suit your heating needs. With 1500W and 750W heat settings, this fan heater can quickly eliminate cold spots in winter, providing you and your family with a cozy and comfortable living environment.

The AKUSAKO Portable Space Heater is energy-efficient, using PTC technology to heat up quickly in just three seconds and quietly in 35-45DB. You can use it as a supplemental heat source to your main heating system, without having to turn up the thermostat for the entire house when you are out. The electric fan heater provides up to 1500W heat on the high setting, while the fan-only option generates refreshing air circulation without increasing heat, helping you save on your winter electric bill.

This electric fan heater is designed with an innovative PTC overheat protection system that ensures your safety when the temperature is too high. The PTC stones in the heater cool down quickly to avoid overheating, making it safer to use than other heaters that use resistance wires. With its safety features, the AKUSAKO Portable Space Heater is a reliable and safe option for your heating needs.

7. Greenhouse-Office Electric Heater: Fast Heat Ptc Fan

Introducing the innovative PTC electric outdoor heater, perfect for keeping your outdoor spaces warm and cozy. This heater is designed with safety in mind, utilizing PTC stones that heat up quickly and cool down just as fast to prevent overheating and ensure that the internal temperature stays at a safe level.

The portable greenhouse fan heater is an ideal solution for those who work in garages or greenhouses and need warmth to keep their feet and legs comfortable. With a cord length of more than 88.6 inches, it can be easily used in any workspace. The garage space heater has a diameter of 6.3 inches, a height of 8.7 inches, and a thickness of 4.9 inches, making it compact and easy to move around.

The adjustable heat setting feature allows you to choose between three different heat settings: fan only, low, and high heat. With a 1500 watt engine, the heater can heat up quickly and quietly, providing warmth in just 3 seconds. Enjoy natural wind in autumn and hot wind in winter with ease.

Not only is this outdoor heater effective in keeping you warm, but it also helps to reduce overall heating costs. You can use it as supplemental heat to your main heating system, avoiding the need to crank up the thermostat for the entire house when you're just hanging out in one room. The garage fan heater provides up to 1500 watts of heat on the high setting, and its Fan Only option generates refreshing air circulation without added heat for year-round convenience.

Safety is a top priority, and this heater has an overheat protection feature to give you peace of mind. It will automatically shut off when it overheats or reaches the setting temperature, preventing any accidents or fire hazards.

8. Greenhouse Heaters: Biogreen Duo Pack

The stainless steel floor-standing greenhouse heater with display is an excellent choice for those looking to heat up spaces up to 120 sq. ft. This heater is perfect for use in a greenhouse, shed, store room, garage, or milk-house. The digital summer/winter thermostat (110 V) is UL-approved and comes with an external sensor cable to measure the ambient temperature in the greenhouse.

The stainless steel housing of the greenhouse heater is durable and long-lasting. The heater features x4 splash-proof stainless steel heat elements that are engineered in Germany for greenhouse heating use. This ensures that the heater is both efficient and effective when it comes to heating up your greenhouse.

In addition to its heating capabilities, this greenhouse heater also features a high air circulation fan that helps prevent mold formation on plants. The heater casing is made from stainless steel and painted steel grills, making it both durable and aesthetically pleasing.

This floor-standing greenhouse heater is designed to heat up a greenhouse with an area of 120 sq. ft. easily (depending on the insulation of your greenhouse). The IPX4 splash-proofing makes it ideal for use in humid areas such as hobby greenhouses.

9. Greenhouse Heat+cont Thermostat Bundle (Biogreen)

Introducing the Bio Green Phoenix space heater, the ideal choice for those who seek to create the best conditions for their plants to thrive or need efficient heating solutions for their shed, garage, barn, chicken coop or store room. This room heater features precise temperature control with heating and cooling/ventilation functions that help maintain a constant optimal temperature and create an excellent greenhouse environment without putting your plants at risk.

Designed for professional-grade use, the Bio Green Phoenix space heater is made with high-quality stainless steel which is IPX4 waterproof, rust-resistant and durable. The fan is super quiet and smooth, equipped with frost detection function to ensure optimal temperature at all times.

With three heat output options, 1Kw/3412 BTU, 1.8kW 6141 BTU, and 2.8kW /9553 BTU, you can easily adjust the temperature depending on your plants' needs, space or special conditions. The Thermo2 smart thermostat is a simple but effective solution for passionate farmers who embrace technology. It helps track valuable indicators such as the climate, humidity, or temperature that assist your plants' development.

The Thermo2 digital thermostat features a double thermostatic ventilation function that allows you to control the heating and cooling functions in the winter as well as summer, ensuring your plants can enjoy excellent thriving conditions all year round. The temperature controller is extremely accurate and easy to use in any conditions, featuring an IPX4 waterproof level, a temperature range of -58 to 108-degree F and can display the temperature in both Fahrenheit and Celsius on a large screen.

Additionally, this greenhouse thermostat not only helps measure the temperature and ventilation but also allows you to control home appliances and equipment such as heaters, heating mats, heating cables, fans, and other appliances up to 3000W.

Invest in the Bio Green Phoenix space heater for a professional-grade design that provides accurate temperature control, precise readings, and a smart temperature control system. It is the perfect choice for creating optimal conditions for your plants to thrive, keeping your equipment warm and dry, and ensuring a comfortable environment for you and your family.

10. Ipower Greenhouse Heater: Fast, Safe, Versatile

Introducing a powerful and portable space heater with an array of features perfect for the cold winter months. Equipped with internal heat limiting control and an overheats protection circuit, this heater prioritizes your safety. Once the desired room temperature is reached, the heater will automatically shut off, ensuring peace of mind.

This lightweight and easy-to-carry heater does not take up extra space, making it highly convenient for you to move around with a built-in carrying handle. Its portability feature allows you to use it in various places, such as garages, kitchens, living rooms, workshops, basements, sheds, and more. You and your family will be surprised by its wonderful performance.

The heater also features a convenient design, with a floor-standing greenhouse heater and a high air circulation fan to prevent mold formation on plants. It is highly efficient and energy-saving, quickly heating up small spaces. You won't have to suffer in the cold winter anymore. Additionally, the adjustable heating range from -58°F to plus210.2°F (-50° C to plus 99 ° C) allows you to customize your heating experience according to your preferences.

The electric supply for this heater is 120V 60Hz, with an air output of 4500 Cubic Foot/Hour. With an energy output range from 25W to 1500W, this space heater is a versatile and effective solution to your winter heating needs. Don't let the cold weather bring you down – invest in this powerful and portable space heater and enjoy a warm and comfortable environment all winter long.

Best Heater For Small Greenhouse FAQs

Are there any eco-friendly options for heating a small greenhouse?

Yes, there are several eco-friendly options for heating a small greenhouse that can help reduce your carbon footprint and save on energy costs. One option is to install a solar-powered heating system, which uses solar panels to generate electricity that can power a heating device or a small fan to circulate warm air. Another option is to use a geothermal heating system, which relies on the natural heat of the earth to warm the greenhouse. This involves burying pipes underground to collect heat, which is then circulated through the greenhouse using a pump. Additionally, you can use composting as a source of heat. Composting generates heat as organic matter decomposes, and this heat can be used to warm the greenhouse. You can also consider using insulating materials like bubble wrap or double-glazed windows to retain heat and reduce heat loss. By adopting these eco-friendly heating options, you can keep your greenhouse warm while also doing your part to protect the environment.

Can a heater be used to regulate humidity in a small greenhouse?

A heater can indirectly help to regulate humidity in a small greenhouse. When the temperature drops, the relative humidity in the air increases. By using a heater to increase the temperature, the relative humidity will decrease. However, this is only a temporary solution and should not be relied upon as the primary method for regulating humidity.

To effectively regulate humidity in a small greenhouse, it is recommended to use a humidifier or dehumidifier depending on the current humidity levels. A humidifier can add moisture to the air when it is too dry, while a dehumidifier can remove excess moisture when it is too humid.

It is important to monitor the humidity levels regularly and make adjustments as needed to ensure that the plants are in a healthy environment. Proper humidity levels are crucial for plant growth and can also help to prevent the growth of mold and pests.

Can a propane heater be used in a small greenhouse?

Yes, a propane heater can be used in a small greenhouse. Propane heaters are a popular choice for greenhouse heating because they are efficient, cost-effective and produce a clean source of heat. They are ideal for small greenhouses because they can be easily moved around and do not require a lot of space. However, it is important to choose the right size of propane heater for your greenhouse to ensure that it is efficient and safe. You should also make sure that the heater is properly vented to prevent the buildup of harmful gases. Additionally, it is important to monitor the temperature in your greenhouse regularly and adjust the heater accordingly to avoid overheating or under-heating your plants. Overall, a propane heater can be an effective and convenient option for heating a small greenhouse.

How long does a heater for a small greenhouse typically last?

The lifespan of a heater for a small greenhouse depends on several factors. The quality of the heater, the frequency of use, and the maintenance practices can all affect the longevity of the device.

In general, a high-quality heater that is used regularly and maintained properly can last for several years. However, if the heater is cheaply made and used frequently without proper maintenance, it may only last for a season or two.

To extend the life of a greenhouse heater, it is important to follow the manufacturer's instructions for use and maintenance. This may include cleaning the heater regularly, replacing filters, and ensuring proper ventilation. It is also important to monitor the heater for any signs of wear or damage and to replace it if necessary.

Overall, the lifespan of a heater for a small greenhouse varies depending on several factors. However, with proper care and maintenance, a high-quality heater can last for several years.

How many BTUs does a heater need to effectively heat a small greenhouse?

The number of BTUs needed to effectively heat a small greenhouse will depend on several factors such as the size of the greenhouse, the outside temperature, and the desired temperature inside the greenhouse. However, as a general rule of thumb, you should aim for a minimum of 5,000 BTUs to effectively heat a small greenhouse. This will work for a greenhouse that is around 100 square feet in size. If you have a larger greenhouse or live in an area with colder temperatures, you may need to increase the number of BTUs to achieve the desired temperature. It's also important to note that there are many types of heaters available, including electric, propane, and natural gas heaters. Each of these options will have different BTU requirements, so it's important to choose the right type of heater for your specific needs.

How much electricity does a heater for a small greenhouse consume?

The amount of electricity a heater for a small greenhouse consumes depends on several factors such as the size of the greenhouse, the type of heater, the outside temperature, and the desired inside temperature.

Generally, electric heaters consume about 1-2 kilowatts (kW) per hour. So, if you run a 1 kW heater for 10 hours a day, you will consume 10 kWh of electricity. However, this is just a rough estimate and the actual consumption may vary based on the above-mentioned factors.

To calculate the exact consumption of your heater, you can check the specifications provided by the manufacturer. The specifications will mention the wattage of the heater and you can calculate the hourly consumption by dividing the wattage by 1000.

It is important to remember that heaters are one of the major consumers of electricity, and running them for long periods can lead to high electricity bills. Therefore, it is important to choose an efficient heater and use it judiciously to save energy and money.

Is a portable or wall-mounted heater better for a small greenhouse?

When it comes to choosing between a portable or wall-mounted heater for a small greenhouse, it really depends on your specific needs and preferences. Both options have their advantages and disadvantages.

A portable heater is easy to move around and can be placed wherever you need it. This is especially useful if you have a small greenhouse with limited space or if you need to move the heater around to different areas of the greenhouse. Portable heaters are typically less expensive than wall-mounted heaters and can be powered by electricity or propane.

On the other hand, a wall-mounted heater is a more permanent solution and can be installed out of the way, freeing up floor space. Wall-mounted heaters are typically more expensive than portable heaters, but they can be more efficient and effective at heating a small greenhouse. They can also be safer since they are not as prone to getting knocked over or accidentally moved.

Ultimately, the choice between a portable or wall-mounted heater for a small greenhouse depends on your specific needs and preferences. Consider factors such as cost, space, and safety before making a decision.

What are the most efficient heaters for a small greenhouse?

When it comes to heating a small greenhouse, there are several options available that are efficient and effective. One of the most popular options is the electric fan heater, which is not only affordable but also energy-efficient. These heaters work by circulating warm air throughout the space, ensuring an even distribution of heat.

Another option is the propane heater, which is ideal for small greenhouses that are not connected to electricity. These heaters run on propane gas and are relatively easy to use and maintain. They are also very efficient in terms of heating, and can quickly warm up a small greenhouse.

If you are looking for a more eco-friendly option, you might consider a solar-powered heater. These heaters use solar panels to collect energy from the sun and convert it into heat. They are not as powerful as electric or propane heaters, but they are very efficient and can be a great choice for a small greenhouse.

In conclusion, when choosing a heater for a small greenhouse, it is essential to consider factors such as cost, efficiency, and environmental impact. By selecting the right heater, you can ensure that your plants stay warm and healthy throughout the year.

What are the safety considerations when using a heater in a small greenhouse?

When using a heater in a small greenhouse, safety should always be a top priority. Here are some important safety considerations to keep in mind:

1. Ventilation: Ensure proper ventilation in the greenhouse to prevent the buildup of carbon dioxide and other harmful gases that can be produced by the heater.

2. Placement: Place the heater on a level, stable surface away from any flammable materials, such as plants, curtains, and plastics.

3. Temperature control: Use a thermometer to monitor the temperature in the greenhouse and adjust the heater accordingly to prevent overheating.

4. Electrical safety: Do not overload electrical outlets and use a grounded cord with the appropriate wattage for the heater.

5. Maintenance: Regularly inspect and maintain the heater to ensure it is in good working condition and free from any damage or defects.

By following these safety considerations, you can enjoy the benefits of a heater in your small greenhouse without compromising the safety of the environment or yourself.

What is the best type of heater for a small greenhouse?

When it comes to choosing a heater for a small greenhouse, there are several factors to consider, such as the size of the greenhouse, the climate in which it is located, and the type of plants being grown. However, the best type of heater for a small greenhouse is an electric heater.

Electric heaters are efficient, safe, and easy to use. They can be portable, which means you can move them around the greenhouse to focus the heat where it is needed most. Additionally, electric heaters are low-maintenance and do not require fuel or ventilation.

When choosing an electric heater for a small greenhouse, look for one with adjustable thermostats and timers, as this will allow you to control the temperature and save energy. It is also important to ensure that the heater is the appropriate size for your greenhouse, as a heater that is too small may not provide enough heat, while a heater that is too large may be wasteful and inefficient.

Overall, an electric heater is the best choice for a small greenhouse, as it provides reliable and cost-effective heat without the need for fuel or ventilation.

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