The 7 Best Grow Tent Heaters on the Market: How to Find the Best One for You

We know by now that growing cannabis can be a high-maintenance project if you don’t already have the natural setting required for the best growth.

To help promote good health and yields, you can look for the best heater for your grow room. But with so many options available, it can be hard to pick!

For a solid lineup of recommendations, PLUS a guide to picking the best grow tent heater, check out the article below!

The 7 Best Grow Tent Heaters on the Market

If you are just starting to grow cannabis indoors, check out our guide to the best grow tents and the best pots.

For now, take a look at the best grow room heaters we’ve found on the market:

1) Lasko Oscillating Ceramic Space Heater – Best Overall

Lasko Oscillating Ceramic
  • Adjustable thermostat
  • Oscillating feature
  • Fast heating

The Lasko Oscillating Ceramic Tabletop Heater has an adjustable thermostat, so you can easily set and maintain your preferred temperature for the best conditions for plant growth.

As a ceramic heater, it provides fast and efficient heating. Coupled with its oscillating feature, it distributes heat evenly throughout the grow space.

Additionally, safety features such as overheat protection and a cool-touch exterior ensure that the heater can be used with full peace of mind.

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  • Powerful and efficient
  • Easy controls
  • Reasonably price
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  • Some users report issues with durability
Lasko Oscillating Ceramic
Rating: 4.8/5

2) Pro Breeze Electric Space Heater 1500 W – Best Value For Money

Pro Breeze Electric
  • It has low and high power modes
  • Cost-efficient operating cost
  • Various practical features

The Pro Breeze Electric Heater 1500 W is a powerful heating solution for indoor gardening. It has two heat settings (low heat and high heating mode) and even a fan mode!

This is my pick for the best value because it offers many useful features for its price. These include its efficient operating cost, advanced safety details, adjustable heat settings, etc.

Among the many electric heaters in the market, I find this to be a contender for the best heater when it comes to its advantages.

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  • Very light
  • Powerful heating
  • Many features
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  • It can be quite noisy
Pro Breeze Electric
Rating: 4.7/5

3) Brightown’s 400W Portable Ceramic Mini-Heater – Best Budget Option

Brightown’s 400W Portable
  • Compact design
  • User friendly

Brightown’s 400W Mini-Heater is a compact and convenient heating solution. In my experience, this is the best heater for small to medium-sized grow spaces.

The heater’s compact design allows easy placement and does not take up valuable floor space while still providing fast and even heating.

It also has a user-friendly control set-up for temperature settings, making adjustments easy.

Despite its size and low cost, it offers plenty of safety features, such as overheat protection and a cool-touch exterior, to reduce the risks of accidents.

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  • Great for small indoor grow spaces
  • Low energy use
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  • It has a low humming noise
Brightown’s 400W Portable
Rating: 4.6/5

4) Vornado MVH Vortex Heater

Vornado MVH Vortex
  • Vortex air circulation
  • Three heat settings
  • Internal thermostat

If you are looking for power, the Vornado MVH Vortex Heater is a strong contender for the best heater available today.

The heater’s unique design circulates air evenly throughout the grow space, ensuring that all plants receive equal heat.

Because of its productivity, you might think it operates loudly or consumes a lot of electricity. I’m happy to report that it does not give any of those issues!

As for its safety features, it has auto shut-off capabilities, tip-over protection, and a cool-touch body.

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  • Powerful but energy efficient
  • Quiet
  • Even circulation
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  • Pricey for some
Vornado MVH Vortex
Rating: 4.5/5

5) Bio Green PAL 2.0 Basic Electric Fan Heater

Bio Green PAL 2.0
  • Powerful fan technology
  • Smart design
  • High power

The Bio Green PAL 2.0 Basic Electric Fan Heater uses fan technology to create and evenly distribute warmth throughout a grow space.

I found it additionally helpful when there was already too much warmth and humidity inside the grow tent, and I only needed to scatter it or remove it.

This heater has an intelligently designed exterior that prevents falling or skidding. It is also moisture-resistant with its splash-proof stainless steel body!

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  • Reliable
  • Helpful even when the heat doesn’t need to be generated
  • Sturdy build
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  • A bit expensive
Bio Green PAL 2.0
Rating: 4.4/5

6) De’Longhi Comfort Temp Full Room Radiant Oil-Filled Radiator

De'Longhi Comfort Temp
  • ComfortTemp technology
  • Permanently-sealed oil reservoir
  • Automatic shut-off

The De’Longhi Comfort Temp Full Room Radiant oil-Filled heater is a reliable heating solution for various grow room setups.

Though it weighs roughly 24 lbs., this oil heater does not need any setup and is surprisingly easy to move around thanks to its wheels and durable body.

This is the best heater in the oil-filled category, in my opinion, thanks to its maintenance-free system. Not having to replenish the oil reserves means having fewer things to worry about!

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  • Reliable performance
  • Hassle-free setup
  • No need to refill the oil
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  • Some users don’t enjoy the smell it emits
De'Longhi Comfort Temp
Rating: 4.4/5

7) AC Infinity CLOUDLINE T4 4” Inline Duct Fan

AC Infinity CLOUDLINE T4 4”
  • Heater for a hydroponic system
  • Dynamic programming (with timers, scheduling, etc.)
  • It can be controlled via app and Bluetooth

If you want a heating solution that can be integrated into your grow ventilation system, look no further. The AC Infinity CLOUDLINE T4 4” Inline Duct Fan is the best one I’ve found.

This inline duct fan helps to circulate air throughout the grow space and can be easily added to a ducting system, making it a convenient solution for large indoor gardening setups.

It features a digital thermostat that you can easily control through your phone via Bluetooth. It truly is cutting-edge!

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  • Unique high-tech design
  • It can be incorporated into a general ventilation system
  • Great for big operations
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  • Expensive
  • Battery replacements may be needed
AC Infinity CLOUDLINE T4 4”
Rating: 4.3/5

What is a Grow Tent Heater?

A grow tent heater is a specialized device used in indoor gardening to regulate the temperature within a grow tent where temperature control is essential.

It typically uses an electric heating element to warm air inside grow tents. The temperature can be controlled using a thermostat that allows users to set the temperature range.

Once the temperature within the grow room reaches the set range, some heaters can automatically turn off (an overheat protection feature).

When the temperature falls below the set range, such a space heater will turn back on, maintaining a consistent temperature within the tent.

There are various types of grow tent heaters available in the market, each with different features and benefits that I elaborate on below. They include the following:

  • Duct fan heater
  • Oil-filled heater
  • Hydronic heater
  • Ceramic heater
  • Electric heater

In my experience, using normal room heaters as a heater for grow tent environments is okay as long as it has an adjustable thermostat feature or multiple heat settings.Did you know that some grow room situations also require cooler temperatures? Check out my guide to cooling your grow tent and picks for the best grow tent fans.

Why Do You Need a Grow Tent Heater?

A grow tent heater is essential for growing cannabis indoors because controlling grow room temperature is critical for optimal plant growth and development.

Cannabis strains have specific temperature requirements. Maintaining their environment at a consistent temperature positively impacts their health and yield.

A grow tent heater can help you regulate the temperature inside the grow room, ensuring that it will stay within the optimal range for cannabis growth.

Moreover, temperature fluctuations can lead to mold and mildew growth that is harmful to plants. A good space heater helps reduce this risk by keeping the level of warmth stable.

It should be noted, though, that not every grow room needs a dedicated heater.

If you operate in a location that naturally has the optimal temperatures for the plants you’re trying to grow, you can skip investing in a heater.Apart from keeping your grow room warm, you must also maximize their light source for the best growth results. Visit this link for the best reflective materials for your grow tent.

Types of Grow Tent Heaters

Did you know that most modern heaters use electrical energy to produce heat?

To be able to choose the best grow tent heater for your space, you first need to know the different kinds!

Duct Fan

A duct fan grow tent heater consists of a fan and a heating element (burner), which are both housed within a duct.

The fan pulls air from outside the grow tent into the duct, where the burner heats it and then blows it back into the grow tent.

This type of heater is best suited for indoor growers who need to control the temperature and humidity levels within their grow tents.

It can also be used in a variety of indoor growing environments, from small closets to large grow rooms.

Oil-Filled Radiator Heater

An oil-filled radiator grow tent heater is a type of electric heater that is filled with special oil.

The oil is heated by an electric element, which warms the entire heater and then radiates heat into the surrounding environment.

These heaters are designed to provide steady and consistent heating, making them well-suited for grow tents where temperature control is critical.

This type of heater can work well for growers who want a low-maintenance heating solution that can provide a consistent and even heat output.

It’s also suitable for growers looking for a safe heating option, as the burner is surrounded by oil, which poses less fire risk.

Additionally, oil-filled heaters are typically quiet in operation, which makes them a good option for grow tents where noise is a concern.

Hydronic Heater

A hydronic grow tent heater uses hot water to heat the grow tent. It typically consists of a water heater, a circulating pump, and a heat exchanger.

Water is heated by the water heater, then circulated through the heat exchanger and into the grow tent, releasing heat into the air.

This type of heater is great for large grow tents or commercial growing operations where temperature control and power efficiency are a priority.

Hydronic heating systems can be more energy-efficient than other types of heating systems as they use hot water instead of electricity to provide heat.

They may also be incorporated into an air circulation system, including humidifiers, cooling systems, etc.

However, they can be more complex and expensive to install than other types of grow tent heaters; they also require a reliable water source.

Ceramic Heater

A ceramic space heater is a type of electric heater that uses a ceramic heating element to provide heat.

The element is housed within a ceramic casing, which helps to distribute heat evenly throughout the grow tent.

This type of heater is best for small to medium-sized grow tents, where controlling temperature is important, but space is limited.

They are also relatively inexpensive and low maintenance, making them a popular choice for budget-conscious growers of cannabis plants.

Still, ceramic heaters can be less energy-efficient than other grow tent heaters and noisy in their operation.

Therefore, they are best suited to growers looking for a low-cost, simple heating solution that can provide basic thermoregulation.

Electric Heater

As the name suggests, an electric grow tent heater uses electrical energy to create heat.

This grow tent heater typically consists of an electric burner and housing that protects the element and directs the flow of heat.

Electric heaters can come in a variety of shapes, sizes, and power ratings, making them suitable for use in a range of grow tent environments.

This type of heater is best suited for growers who want a simple and convenient heating solution that is easy to install and operate.

They are also relatively inexpensive. Therefore, they are a good choice for growers who are working on a budget.

But, electric heaters can be less energy-efficient than other types of grow tent heaters. They can also pose a fire risk if not used properly.

Benefits of Grow Tent Heaters

Using a specialized heater for grow tent environments allows you to enjoy numerous benefits. Here are some key advantages you may appreciate:

  1. Controlled temperature.
    • Cannabis has specific temperature requirements. A grow tent heater helps you ensure that the grow room stays within a temperature range that is best for cannabis growth.
  2. Prevent mold and mildew growth.
    • Temperature fluctuations increase risks that can be harmful to the plants. Using a heater will maintain a consistent temperature that can reduce this problem.
  3. Power efficiency.
    • Space heaters help reduce the consumption of energy over time (compared to other heating options), lowering power costs and making them an affordable solution for growing cannabis indoors.
  4. Great for small spaces.
    • Grow space heaters are typically compact and designed specifically for use in grow tents, making them ideal for small indoor growing setups where space may be limited.
  5. Convenient usage.
    • Grow room heaters offer useful features (e.g., built-in adjustable thermostat, automatic shut-off system, tip-over protection), which make them handy and easy to use.
  6. Improved plant growth.
    • Keeping stable temperatures in grow spaces can improve the overall health and growth of cannabis strains (and other plants), resulting in higher yields and better-quality crops.
  7. Flexibility.
    • There are many options available when it comes to a heater for grow tent setups. Growers of all kinds can choose the best heater based on their specific needs to maximize their grow room efficiency.

Though it’s great to enjoy the benefits of having the best heater for grow tent setups, you also need to ensure proper ventilation.Learn how to raise the humidity in your grow tent as well as how to control humidity with my helpful guides.

Factors to Consider When Choosing Grow Tent Heaters

You may wonder what makes a good grow tent heater. In this section, I will discuss key aspects you should keep in mind when picking the best grow tent heater for your space:

Size of Your Grow Room

Choosing a grow tent heater based on the size of your grow room ensures that the temperature in the grow tent stays within the optimal range for the plants.

Proper temperature is crucial for the growth, health, and yield of cannabis plants.

If a grow room heater is too small for the room, it will not produce enough heat to maintain the desired temperature, leading to temperature fluctuations which can stress the plants.

This can slow down growth, reduce yields, and even cause plant death.

On the other hand, if the grow room heater is too large, it may produce more heat than necessary, resulting in excessive energy consumption and increased costs.

High heat can also create a dry environment that negatively impacts the health of the plants.

Size of Your Grow Tent Heater

It is important to pay attention to the size of a grow room heater if you are growing cannabis because it helps to ensure that the grow tent is heated evenly and efficiently.

Relative to the size of your grow room, you may struggle to maintain the optimal temperature, leading to negative impacts on the cannabis plants’ growth and yields.

As I mentioned above, a small space heater may not efficiently heat a grow room, while a large one can waste energy and create an overly hot room, both of which can be harmful to plants.

Choosing an aptly sized grow tent heater can ensure that the temperature is consistent and within the optimal range for the plants, promoting healthy growth and high yields.

Portability of Your Heater for Grow Tent

The portability of a grow tent heater may be beneficial when growing cannabis, as doing so can allow you to easily move the heater around the grow tent as needed.

If you need to change the location of plants or access different parts of the grow tent for maintenance or inspection, a portable heater can be the best heater for you.

A portable heater can help you easily adjust the heat distribution within the grow tent, ensuring that the temperature stays consistent and within the optimal range.

Additionally, a portable heater can be useful when you need to turn off the heat quickly and easily in case of an emergency, such as a power outage or equipment failure.

Ease of Use

Simplifying the heating and process of controlling temperature with a grow tent heater can help save time and reduce stress, allowing you to focus on other aspects of growing cannabis.

Easy-to-use heaters often have intuitive controls and user-friendly interfaces. These things make setting up heat settings and adjusting the temperature as needed simple.

I personally enjoy a streamlined and stress-free heating experience, so I tend to look for features that enhance usage.

The best heaters may automatically shut off when needed or have temperature-controlling systems that help ensure the grow tent stays at the optimal temperature for the plants.

A space heater that is easy to use can help prevent mistakes or incorrect temperature settings, which can stress the plants and lead to poor growth and yields.

Energy Efficiency

Energy-saving is important when choosing grow tent heaters because it can lower your spending on your electric bills and reduce your overall carbon footprint.

Energy-efficient heating uses less power to produce the same amount of heat, which can scale down your power costs over time.

In addition to being cost-effective, an energy-saving space heater also tends to be more environmentally friendly because it produces fewer greenhouse gas emissions.

Furthermore, energy-saving heaters may also have other features that can improve your plant’s overall health and yield.

Type of Heater

Different types of space heaters present different strengths and weaknesses. Therefore, some may be better suited to your cannabis growing needs than other types.

For example, a hydroponic heater uses water to heat plants and objects in the grow tent. They are known to be useful for big spaces and are able to provide consistent warm air.

On the other hand, a propane heater uses gas as a fuel source. They can provide fast and efficient heat to a grow room.

Another type of heater, the ceramic heater, is a popular choice for growing cannabis due to its productivity and durability.

Choosing the correct type of grow tent heater can allow you to create a more favorable and efficient growing environment for your plants.

Type of Heat Produced

Different types of heat energy can also have different effects on the growth and health of plants.

Take, for instance, infrared and convection heat.

Infrared heat is a type of radiant heat that is absorbed directly by plants. It is particularly useful for providing spot heating or supplemental heat.

Convection heat, on the other hand, is produced by forced air heaters and circulates hot air throughout the grow tent, providing a more even heat distribution.

Convection heat can be especially useful for maintaining a consistent and stable temperature.

Furthermore, it is important to consider the heating power of your space heater, as various strains have different temperature requirements.

Power Consumption

The power consumption of a space heater is important to consider when growing cannabis as it can affect your electric bills and the efficiency of the heating system.

Higher consumption means that the grow room heater will consume more electricity, which can lead to higher energy bills over time.

Additionally, heaters with higher consumption may generate heat that is more than necessary. This can waste energy as well as create a potentially harmful environment for plants.

To ensure that it can operate safely and effectively, it is also important to consider the voltage requirements of a space heater and your grow tent’s electrical capacity.

Safety Features

Choosing a grow tent heater based on its safety features is important when growing cannabis because heaters can pose a potential fire hazard if not properly used or maintained.

To ensure the safety of your grow tent, it is important to choose a heater that is equipped with appropriate safety features

For example, some units feature overheat protection. In the event that overheating happens, the grow room heater automatically shuts off to prevent accidents.

In addition, some heaters in the market have safety features such as a tip-over switch for tip-over protection.

Also consider the placement of the space heater, as well as the type of materials in your grow tent, to ensure that the heater will not be a fire hazard or create an unsafe environment.

Auto Power System

A grow tent heater with auto-power capabilities can be beneficial when growing cannabis as it can make the heating system of your indoor garden more efficient and effective.

An auto power system (a.k.a. automatic control system) is a feature that allows a space heater to automatically adjust its power output based on the temperature in the grow tent.

This can help maintain a consistent and stable temperature while also aiding in conserving energy and reducing electricity costs.

This is because it will only consume the amount of power necessary to maintain your preferred temperature.

Additionally, an auto power system can improve the safety of the heating system, as the heater can turn off or adjust its output should overheating or other malfunctions occur.


The price of a space heater is a critical consideration as it affects the total cost of your grow room’s heating system. This means it impacts your overall budget for growing cannabis.

Though investing in a high-quality heater that meets your specific needs and requirements is important, it’s also worthwhile to consider how it fits into your overall finances.

Doing so can help you determine the most cost-effective option for your grow tent.

I suggest balancing getting a quality heating system with your budget constraints, as it can enable you to allocate more resources for other aspects of your grow tent setup.

Frequently Asked Questions (FAQs)

Have more questions about picking the best heater? Here’s some more information:

What is the Best Type of Grow Tent Heater for My Grow Room?

The best heater for your setup will depend on many factors which have been discussed above. Generally, you should:

  • Choose a heater that is appropriate for the size of your grow tent.
  • Consider the temperature needed by the plants you are growing.
  • Look for energy-efficient heaters to reduce energy costs and minimize your carbon footprint.
  • Look for convenient features like a built-in adjustable thermostat or auto shut-off.
  • Pick a cost-effective heater that delivers quality and efficiency.

Following these guidelines can help you get the best grow tent heater for your operation.

Is it Safe to Use a Heater in a Grow Tent?

It is generally safe to use them, given that certain precautions are taken.

Here are some tips to ensure the safe usage of a heater for grow tent setups:

  • Use specialized heaters. Avoid using normal room heaters as much as possible.
  • Keep it away from moisture and water to reduce the risk of fire or electrical hazards.
  • Maintain good ventilation, as heaters can produce high heat and humidity.
  • Use a heater with overheating protection and a tip-over switch.

Doing so can provide consistent heat that promotes the best plant growth and development.

How Much Heat Should My Grow Tent Maintain?

This depends on the plants you are growing in your indoor grow space.

For cannabis, many growers agree that the best temperature range to keep inside the grow tent is between 68°F and 77°F.

  • The ideal temperature for the day is around 70-75°F, while the ideal nighttime temperature is around 68-72°F.

Keeping your heater’s temperature settings in that range should uplift a cannabis plant’s growth and yield.

My Top Picks

Here’s a quick recap of my pick for the best heaters:

Brightown’s 400W Portable Ceramic Mini-Heater – Best Budget Option

Brightown’s 400W Portable


  • Compact design
  • User friendly

If you don’t have enough cash to spend on a heater, this Brightown one is perfect as it is inexpensive and only consumes low amounts of electricity.

Small and mid-sized grow room users will not be disappointed.

Pro Breeze Electric Space Heater 1500 W – Best Value for Money

Pro Breeze Electric


  • It has low and high power modes
  • Cost-efficient operating cost
  • Various practical features

This heater from Pro Breeze packs a punch with its many useful features, like its three heat modes and complete safety capabilities.

This is a great pick if you’re not too bothered by its low-humming noise!

Lasko Oscillating Ceramic Space Heater – Best Overall

Lasko Oscillating Ceramic


  • Adjustable thermostat
  • Oscillating feature
  • Fast heating

This Lasko offering is, in my opinion, the best heater your money can buy, thanks to its efficiency, safety, and user-friendly features.

The price is reasonable, and it can work for a variety of setups too!


A specialized grow space heater can help you keep the temperature inside regulated. This introduces numerous benefits to plant growth, especially for growing cannabis indoors.

There are many kinds available in the market. To choose the best heater for your specific setup, you need to consider a number of factors, such as its size, energy use, price, etc.

To help with this task, I have tested some products and listed the best grow tent heaters I could find.

Good luck!