Best Greenhouse Heater buyers guide

Keeping your greenhouse warm when it’s cold will prevent your plants from any cold-related problems or even diseases. So what do you use to keep your greenhouse warm? do you really have to use a layer of clothes? Simply use a greenhouse heater to avoid all this hassle. Keep reading through this article to get the best greenhouse heaters available in the market today.

Most people are used to the DIY supplementary heating methods which may be costly to manage and can also cause some problems and diseases to your crops.

Using a greenhouse heater keeps your plants healthy when it’s cold and it’s relatively cheap to use since they are energy efficient.

It’s always a dilemma when it comes to choosing the best greenhouse for your garden. This article will therefore help you out by providing you will a list of the best greenhouse heaters available in the market to choose from.

Make sure to follow the buyer’s guide provided below to help you in deciding which greenhouse heater to buy per your needs and preferences.

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6 Best Greenhouse Heater

  1. Mr. Heater F215100 MH4B Little Buddy 3800-BTU  Heater

This is a propane heater that is easy to carry around and it’s also easy to use in your greenhouse. It can be used for indoor use and can cover an area of up to 95 square feet.

It features a 1-pound disposable propane cylinder and it’s able to run for up to 5.6 hours when in use. You should note that it’s not safe to operate this heater in a moving vehicle or golf cart.

For efficient performance, use this heater on a vent area of 4 square inches minimum for ultimate ventilation when operating.

For safety and easy operation, this heater comes with a low-oxygen sensor and accidental tip-over switch with auto shut-off.

NOTE: Do not use any unauthorized accessories or attachments with this heater as this may cause vital injuries.

Mr. Heater F215100 MH4B Little Buddy 3800-BTU  Heater


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Key Features

  • It’s portable
  • 45-degree heating angle
  • Covers up to 95 square feet area
  • I-pound disposable propane cylinder
  • Low oxygen sensor
  • Auto shut-off for optimal safety.
  1. Mr. Heater F232000 MH9BX Buddy 4,000-9,000-BTU Heater

If you are looking for the best greenhouse heater that is powerful and safe to use then this is your perfect choice.

This is a patented radiant 4,000-9,000 BTU liquid propane heater that is connected to a 1 lb cylinder and can be used for heating enclosed spaces of up to 225 square feet.

This heater features a swivel regulator that allows you to adapt usage from a disposable cylinder to a remote gas supply using a hose and a filter. This heater can run for 3 hours.

It’s easy to operate this heater since all you have to do is to rotate the knob to the pilot and push to light the heater. From there, its integrated Piezo sparking mechanism will do the rest.

You should note that operating this heater at altitudes over 7,000 FT above sea level may lead to shutting off of the heater.

For comfortable and safe indoor use, this heater features the Oxygen Depletion Sensor and accidental tip-over switch with shut-off.

NOTE: Do not use unauthorized accessories or attachments with this heater because they may cause injuries.

Key Features

  • It Covers 225 enclosed areas
  • 1 lb cylinder
  • Features an oxygen depletion sensor
  • A tip-over switch with shut-off
  1. Lasko 754200 Ceramic Portable Space Heater

If you are looking for the best greenhouse heater for your small area that is easy and safe you use, this is your perfect choice.

This heater comes with 3 quiet settings which include high heat, low heat, and fan thus making this heater ideal for warming up an area in your home effectively.

This is a personal heater that works the best for small areas and does not have a remote due to its size.

The adjustable thermostat featured in this heater allows you to adjust the heater’s 1500 watt ceramic heating element for efficient and convenient operation.

It has 11 different temperature settings that help you to get a comfortable setting of your choice by turning the dial to the heat setting you desire.

It’s easy to move this heater to the area of your interest due to its compact size and also convenient carry handle for easy carrying. The heater can cover up to 300 square feet.

For safety purposes, this heater comes with overheat protection to ensure that the heater does not overheat even if left on for long hours. The cool-touch exterior featured in this heater allows its body to stay cool even when it’s on high heat.

The heater is already assembled when you buy thus making it easy and fast to use just after unboxing it.

Key Features

  • 110 Volts
  • 300 square feet coverage
  • Feature 3 quiet settings
  • Adjustable thermostat
  • 11 temperature settings
  • Carry handle
  • Come fully assembled.
  1. 4. Dr. Heater DR218-1500W Greenhouse Garage Workshop Infrared Heater

For the best greenhouse heater that is ideal for small greenhouses with low maintenance and easy to operate choose this heater.

This heater uses infrared heating technology thus making it able to keep a 150 square kilometers greenhouse warm when cold.

It comes in a small size thus making it easy to carry around and its strong handgrip makes it easy to pull the heater from one area to another.

For efficient and easy operation this heater features dual adjustable knobs located on the front end of the heater. The first knob is for setting the needed temperature for the thermostat to prevent overheating while the second knob is for helping you get the right speed for the fan in regards to the area of the room and temperature requirements.

Enjoy the safe and convenient operation of this heater by the use of its built-in temperature control thermostat that aids in preventing the heater from overheating or catching fire when in use.

Its maintenance is made easy by the heavy-duty motor with ball bearing and good lubrication that will last for a long thus reducing its maintenance cost.

Its heavy-duty steel housing is ideal for keeping the heating elements inside the heater safe in case of accidental collision or splashing.

Key Features

  • Lightweight
  • Comes with an adjustable thermostat
  • Strong steel housing
  • Dual adjustable knobs
  • Excellent lubrication.
  1. Bio Green PAL 2.0/US  Electric Fan Heater

This is a mini-size heater suitable for smaller greenhouses that you can use to warm your crops during winter. It can cover an area of up to 120 square feet.

It has a compact design that makes it able to occupy a small space on the ground and its strong mounting stand keeps it in position without falling.

This is a dual-function heater will allow you to use the heat settings as well as the fan-only mode. The fan mode acts as a ventilation system that is responsible for eliminating extra humidity from the greenhouse thus preventing the development of molds and fungal infections on the plants.

It has an IPX4 splash-proof stainless steel housing that is responsible for protecting the heater parts from moisture contact thus reducing any risk of accidents or damage.

Its Palma digital thermostat control gives you numerous temperature settings that you can set for your heater. The temperature range can be between -58℉ to 210.2℉ depending on your preference. The heater will automatically shut off when the required temperature is reached to prevent overheating and also save on power.

Key Features

  • Has a compact design
  • It has a dual function
  • A palm digital thermostat control
  • Easy to operate
  • IPX4 splash-proof stainless steel housing.

Features To Consider When Buying The Best Greenhouse Heater( Buyer’s Guide)

To get the best greenhouse for your garden, consider the following features to help you choose the perfect one that suits your needs and you will not regret it.

The price

The price is always the number one feature to consider when buying any item to avoid going beyond your budget. It’s always wise to set your budget before doing your research to stick to your set budget.

Greenhouse heaters are available in a wide range of prices thus giving you room to choose the one that is within your budget. The price difference is brought about by the size and amount of power your heater will generate.

The type of the heater

When it comes to the type of heater, make sure you choose the one that compliments your greenhouse perfectly.

The different types of heaters include; electric heaters, fan heaters, halogen heaters, propane heaters, and also paraffin heater. All these types are different and will work differently to warm your greenhouse.

For instance, for you to use a propane heater you ought to have proper ventilation in your greenhouse for easy exit of the propane fumes when warming.

Electric heaters on the other hand can only be used where you have power in your greenhouse.

Consider all these heater types and choose the one that will work well with your greenhouse.

Your greenhouse size

The size of your greenhouse will determine the size and also the type of heater you require.

Before buying any greenhouse heater, make sure it goes well with the size of your greenhouse for perfect results.

Power rating

The power rating of your heater will determine the amount of heat it’s going to generate. Greenhouses differ in terms of the amount of heat they require therefore you should be keen enough to choose a heater that has enough power to generate the specific amount you require for your greenhouse.

Consider a heater that is energy rated to give you the most power as compared to the energy used to warm your greenhouse.

It’s also key to get a greenhouse heater that has the ability to automatically shut off after reaching the right temperature in the greenhouse. When the temperature drops below the required temperature the heater should be able to turn itself on.

Sound produced

The sound produced will differ from one heater to another and also the noise level of each heater. All the heaters will produce a sound so it’s up to you to choose the sound that you are okay with and can tolerate.

You should also note that the noise varies from the loudest to the most silent so you can choose the perfect one for yourself.

The location and zone

The location and zone of your greenhouse will dictate the type of climate you experience therefore deciding on the best type of greenhouse heater to use.

This will also determine what time to use the heater and when not to use it for the healthy growth of your crops.

The temperature required by the plants

Different types of plants and crops will require different amounts of temperature. You should bear in mind the type of crops you intend to grow in your greenhouse to get the perfect heater for your greenhouse.

The Insulation sheets type

Greenhouses use different types of polycarbonate sheets or wrap to insult their walls. This should be considered when buying a greenhouse heater to ensure it matches the insulation sheets.

The material used to make the insulation sheets will determine how long the insulator is going to retain heat. Some materials have poor heat retention while others will retain heat for longer periods.


This article has provided you with a list of the best greenhouse heaters available in the market that you can choose from for your greenhouse.

I am hopeful that you found this information useful and I have given you all the important information you need to know concerning greenhouse heaters.

Make sure to follow the buyer’s guide provided above to help in deciding which greenhouse heater to settle for.

You should note that all the greenhouse heaters have their differences in terms of features, size, power rating, and others so it’s up to you to choose the heater of your choice.

All the best!

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