Greenhouses are a great way to extend your growing season and provide a controlled environment for your plants. However, maintaining the right temperature in a greenhouse can be a challenge, especially during the colder months. This is where greenhouse heaters come in.
A good greenhouse heater can provide the necessary warmth to keep your plants healthy and thriving, even when the temperature outside drops. But with so many options available, it can be challenging to choose the right one for your needs.
When shopping for a greenhouse heater, the critical thing to consider is the size of your greenhouse. You’ll need to ensure that the heater you choose can adequately heat the space. Additionally, you’ll want to consider the type of fuel the heater uses, as well as its safety features.
We spent hours researching and testing various greenhouse heaters to identify the best options on the market. In the following sections, we’ll share our top picks and provide a detailed review of each.
Best Greenhouse Heaters
As the colder months approach, it’s important to make sure your greenhouse is kept at a consistent temperature to protect your plants from frost and freezing temperatures. That’s why we’ve put together a list of the best greenhouse heaters on the market. Our team has researched and tested various models, taking into consideration factors such as heating capacity, energy efficiency, and ease of use. Below are our top picks for the best greenhouse heaters to keep your plants thriving throughout the winter months.
LightHouse 305mm 45W Eco Heat Greenhouse Heater
If you’re looking for a reliable greenhouse heater, the LightHouse 305mm 45W Eco Heat Greenhouse Heater is a great option.
Pros
- Protects plants against sudden temperature and humidity fluctuations
- Uses less than 50w per foot which is similar to an ordinary light bulb and 25% less than most similar tube heaters
- Provides a stable environment
Cons
- No thermostat control
- No frost stat
- Gets hot when in use
We’ve been using this heater for a while now, and we’re impressed with its performance. It effectively protects our plants from sudden temperature and humidity fluctuations, ensuring that they thrive in a stable environment.
One of the best things about this heater is that it uses less than 50w per foot, which is similar to an ordinary light bulb and 25% less than most similar tube heaters. This means that it’s energy-efficient, and won’t cause a significant increase in your electricity bill.
However, it’s worth noting that the heater doesn’t have a thermostat control or frost stat. This means that you’ll need to monitor the temperature and adjust the heater manually if necessary. Additionally, the heater gets hot when in use, so you’ll need to be careful when handling it.
Overall, we would recommend the LightHouse 305mm 45W Eco Heat Greenhouse Heater to anyone looking for an energy-efficient and reliable greenhouse heater.
LightHouse 2kW Greenhouse Space Heater
If you’re looking for a reliable and easy to use heater for your greenhouse, then the LightHouse 2kW Greenhouse Space Heater is a great option.
Pros
- The thermostat control makes it easy to maintain a consistent temperature in your greenhouse.
- The inbuilt fan has three different settings, allowing you to control the heat output and air flow.
- The heater can cover up to 20m² of heating area, making it suitable for most greenhouses.
Cons
- The temperature control is not graduated, so it may take some trial and error to find the optimal setting for your greenhouse.
- Some users have reported that the heater is not as quiet as they would like, especially on the higher fan settings.
- The heater is not frost-free, so you may need to supplement it with additional heating sources in very cold weather.
In our experience, the LightHouse 2kW Greenhouse Space Heater is a robust and reliable option for anyone looking to heat their greenhouse. The thermostat control makes it easy to maintain a consistent temperature, and the inbuilt fan allows you to control both the heat output and air flow. The heater is also capable of covering up to 20m² of heating area, which should be sufficient for most greenhouses.
However, it’s worth noting that the temperature control is not graduated, so you may need to experiment to find the optimal setting for your greenhouse. Additionally, some users have reported that the heater is not as quiet as they would like, especially on the higher fan settings. Finally, while the heater is effective, it is not frost-free, so you may need to supplement it with additional heating sources in very cold weather.
Overall, we would recommend the LightHouse 2kW Greenhouse Space Heater to anyone looking for a reliable and easy to use heater for their greenhouse.
Morris Tubular Heater
We highly recommend purchasing the Morris Tubular Heater for its low wattage heating capabilities and easy installation.
Pros
- Comes in various lengths and wattages for versatility
- Built-in 90° thermostat cut out for safety
- Weatherproof IP55 rating for protection against dust and water
Cons
- Does not generate a lot of heat
- Plastic fixing brackets may not be durable
- Plug may arrive broken
The Morris Tubular Heater is perfect for low wattage heating in a variety of settings, including greenhouses and bathrooms. Its surface mount brackets make installation a breeze, and the heater can be easily clipped into place. The built-in 90° thermostat cut out ensures that the heater will not overheat, making it a safe option for any room.
While the Morris Tubular Heater does not generate a lot of heat, it is still effective in protecting seedlings or keeping a small room warm. The plastic fixing brackets may not be as durable as some users would like, but they are still effective in holding the heater in place. Additionally, some users have reported receiving the product with a broken plug.
Overall, the Morris Tubular Heater is a great option for those in need of low wattage heating. Its versatility and safety features make it a reliable choice for any room in the house.
Morris Tubular Heater
We highly recommend the Morris Tubular Heater for those looking for a low wattage heating solution for their greenhouse or other small space.
Pros
- Available in various lengths and wattages
- Built-in thermostat cut-out for safety
- Weatherproof IP55 rating Cons
- Not suitable for larger spaces
- Plastic mounting brackets may not be durable
- May not generate enough heat for some users
This heater is perfect for use in small spaces such as greenhouses, pet rooms, and cupboards. The various lengths and wattages available make it easy to find the perfect fit for your needs. The built-in thermostat cut-out ensures safety and peace of mind, while the weatherproof IP55 rating means it can be used in any weather.
Installation is a breeze with the included surface mount brackets, which can be used for either floor or wall mounting. While the plastic brackets may not be the most durable, they get the job done.
Overall, the Morris Tubular Heater is a great choice for those looking for a low wattage heating solution for their small space. It may not generate enough heat for larger areas, but for its intended use it is a reliable and efficient option.
Sunhouse Thermostatic Heater
If you’re looking for an affordable, low energy greenhouse heater, the Sunhouse Thermostatic Heater is worth considering.
Pros
- The heater is easy to install and unobtrusive, with an overall length of approximately 1323mm.
- It is thermostatically controlled for reduced running costs.
- The built-in auto-reset safety cut-out ensures the heater is safe to use.
Cons
- The tube gets pretty hot to the touch, so be careful where you place it.
- The heater may not be powerful enough to heat larger greenhouses.
- The plastic housing at the end of the heater may fall off after a few months of use.
We recently purchased the Sunhouse Thermostatic Heater to provide frost protection for our house plants in an unheated conservatory. The heater works well, and the built-in thermostat means that it only goes on when needed, saving energy and reducing running costs.
While the heater is easy to install and unobtrusive, we did notice that the tube gets pretty hot to the touch, so it’s important to be careful where you place it. Additionally, the heater may not be powerful enough to heat larger greenhouses, so it’s important to consider the size of your greenhouse before purchasing.
Overall, we would recommend the Sunhouse Thermostatic Heater to anyone looking for an affordable, low energy greenhouse heater. It’s easy to use, safe, and effective at providing frost protection for your plants.
Buying Guide
When it comes to buying a greenhouse heater, there are several factors to consider to ensure you make the right choice. In this buying guide, we will discuss the key features to look for when choosing the best greenhouse heater for your needs.
Heat Output
The first thing to consider is the heat output of the heater. This is measured in watts and will determine how much heat the heater can produce. The size of your greenhouse will determine the heat output you need. As a general rule, you will need around 50 watts of heating power for every square foot of greenhouse space.
Type of Heater
There are several types of greenhouse heaters available, including electric, gas, and paraffin heaters. Electric heaters are the most common and are easy to use, but they can be expensive to run. Gas heaters are more cost-effective, but they require ventilation and can produce fumes. Paraffin heaters are the cheapest option, but they require regular maintenance and can be messy.
Thermostat
A thermostat is an essential feature for any greenhouse heater. It will allow you to set the temperature and ensure that the heater turns on and off as needed to maintain the desired temperature. Look for a heater with a digital thermostat for accuracy and ease of use.
Safety Features
Safety is crucial when it comes to greenhouse heaters. Look for a heater with safety features such as overheat protection and tip-over protection. Overheat protection will shut off the heater if it gets too hot, while tip-over protection will turn off the heater if it is knocked over.
Size and Portability
Consider the size and portability of the heater when making your choice. If you have a small greenhouse, a compact heater may be all you need. If you have a larger greenhouse, a larger heater may be necessary. Look for a heater with wheels or handles for easy portability.
By considering these key features, you can choose the best greenhouse heater for your needs. Remember to always follow the manufacturer’s instructions for safe and effective use.
