In this guide we’ll take a look at the best shed heaters.
I’ve compared power, energy efficiency, design, size and cost
to give you my top recommendations.
What Is The Best Shed Heater?
In a rush? Here’s my top choice…
Powerful and efficient heater, suitable for a range of locations!
This Bio Green 2KW Palma Heater will provide powerful heat to your shed, conservatory, greenhouse or garage! It is splash-proof so can be used in damp areas, whilst also being stylish and portable. As a result, it’s just at home in your outbuildings as it is in the house. Delivering 2 kW of power and with a reliable thermostat, this heater will keep temperatures up and costs down.
Everything We Recommend
More Detailed Shed Heater Reviews
Bio Green 2KW Palma Heater with Digital Thermostat Review
This Bio Green 2KW Palma Heater is suitable for sheds, outbuildings, greenhouses or in the home.
It features a 2000 W heating output and a powerful fan that circulates the warm air at 163 m³/h, keeping you warm no matter the weather outside.
The IPX4 splash-proof rating means this is suitable for use in damp rooms such as greenhouses. You don’t need to worry about the atmosphere wreaking havoc with this sturdy machine.
The heater has a stylish and robust design that would look at home in the workshop or conservatory. It is also compact, has slip-proof feet and a carrying handle, so can easily be moved between spaces.
The heater includes a digital thermostat so you can keep your shed, room or greenhouse at the perfect temperature. This means you don’t use more electricity than you need. The fan circulates the warm air quickly around the room to maintain an even temperature.
The thermostat is very accurate and is ideal if you want to provide frost protection for plants or for items stored in a shed, garage or workshop. It can be set anywhere between – 50°C to + 99°C.
As a result, it’s best shed heater for plant enthusiasts because it can be accurately set to exactly the temperature you need, and will maintain it.
Furthermore, its stylish design means it will be equally at home in the sun room or conservatory.
Sunhouse 80W Low Energy Tubular Heater With Mounting Brackets Review
This Sunhouse 80W Low Energy Tubular Heater is another heater designed to provide ambient heat. Perfect for frost protection, reducing damp and clearing condensation.
It has an adjustable thermostat; it will quickly warm the room up to the set temperature, and maintain it continuously. Leaving you able to get on with other tasks, not needing to worry about fussing with any settings.
This garden shed heater is extremely economical to run and is the perfect solution for keeping outbuildings frost free.
The splash-proof rating means it is suitable for use in damp areas such as greenhouses. When I tested this heater in my unheated garage it kept the temperature above freezing even on the coldest nights. Plus it only cost a few pence a day to run!
Warmlite WL42005N Halogen Heater 1200W Review
This Warmlite WL42005N Halogen Heater warms up rooms fast and has three heat settings: 400, 800 and 1200 W.
A choice of heat settings allows you to not only control how much heat you’re getting, but also use the heater more economically if you wish.
It also has an oscillation function to make it easy to evenly heat a room.
It’s a portable and lightweight unit so can easily be moved to different locations as required. Plus, the heater has a safety cut-out switch and will turn off in the event or toppling or overheating.
Whilst this may not be (in my humble opinion!) the most stylish design, many people like the warm glow that it gives off; it is both comforting and the colour alone suggests warmth. Replacement halogen bulbs are available separately.
This is an excellent, low-cost, portable garden shed heater that provides instant heat anywhere you need it.
Dimplex OFRC15N 1.5 KW Oil Free Radiator Heater Review
This Dimplex OFRC15N 1.5 KW Oil Free Radiator Heater is a safe, economical and efficient way to keep a room, shed, conservatory or workshop warm and cosy.
The radiator uses 1.5 kW of power and provides steady heat; ideal for keeping a building warm all day long.
It is lightweight and easy to move around so you can use it in a variety of locations whenever you need a bit of extra warmth. The easy glide castors also make it easy to move around a room or work space.
The heater has two heat settings and a thermostat with a frost setting. As a result, it can also be used to keep a shed or greenhouse frost free in the colder months.
You won’t have to wait long to get warm; this heater takes about 15 – 20 minutes to take a room or shed from chilly to toasty.
Because it is oil free you don’t have to worry about leaks or smells, and it is also 25% cheaper to run than an oil-filled radiator.
The radiator is economical to run, especially when compared to a fan heater, which means you can use it all day without worrying too much about the cost. I have found it ideal for heating one room in the home, such as an office, without needing to have the heating on in the whole house all day. It would also be perfect if you spend long periods in an outdoor office or workshop.
This heater provides a perfect low-cost solution and is ideal for providing all-day warmth in the home or in an outbuilding. It is easy and safe to use, does the job well and offers great value for money.
Chefavor Portable Fan Heater 950W With 3 Modes Review
This Chefavor Portable Fan Heater is compact enough for use in even a small shed or room, but provides a lot of heat for its size.
Its small, stylish design means it would look great in a conservatory, sun room or porch, but it’s also useful enough for outbuildings such as sheds and home offices.
The fan features a powerful 950 W high-heat setting and a 700 W low-heat setting. It also has a fan-only setting, which makes this unit even more versatile: useful for heating in winter and cooling in summer.
It oscillates effectively to spread heat evenly around the room, but can an also be fixed to directly heat a specific area. The heater features an LED indicator so you can see at a glance what setting it is on.
The fan has several safety features including an automatic shut-off if it overheats or is tipped over. It is a little bit noisy on the high setting, but on the low setting, it is very quiet.
This ceramic fan heater is reasonably cost effective to run and starts to warm the room the minute is turned on. On the high setting, it warms a room quickly and can then be turned down to low to maintain heat.
Fan heaters are not the most economical way to heat rooms over long periods, but they are ideal for a quick blast of heat to take the chill off a room. If the room you are heating is well insulated, it will stay warm and you won’t have to leave the heater on for long anyway.
This is a low-cost garden shed heater that is ideal for taking the chill off a room. It would be suitable for rooms and outbuilding that are used occasionally for short periods or that are well insulated. I have found this the perfect solution for use in a chilly conservatory, and its portability means it is handy to have around the home as an additional heat source for colder rooms.
Overall this is a stylish and affordable solution for keeping the winter chill at bay.
Ecoheater 1000mm Slimline Greenhouse & Shed Heater Review
This energy efficient Ecoheater 1000mm Slimline Shed Heater provides pleasant heat that is perfect for preventing freezing, condensation and damp. It has an IP44 rating so is safe to use in damp buildings such as greenhouses.
It is an extremely low-cost solution for frost protection in greenhouses, sheds, garages and workshops. It costs very little to run and provides just enough heat to keep buildings above freezing.
This slimline heater is small and unobtrusive so can be tucked away in a conservatory or even the smallest of sheds and greenhouses. It can be wall mounted or used on the floor. I would recommend mounting it on the wall if you have children as it does get hot to the touch.
The thermostat will switch off the heater when the set temperature has been reached, so you won’t waste energy on excessive heat.
I tested this heater in an unheated garage, and it kept the area around 6°C even when the temperature outside dropped below freezing.
This is the perfect solution for keeping greenhouses and sheds frost free and dry over the coldest winter months and it only costs a few pence per day to run. It’s definitely one of the best garden shed heaters on the market, especially for the price.
Things to Know Before Buying a Shed Heater
Whether you use your shed as a home office, somewhere to warm up after a cold morning gardening, or simply want to ensure plants, tools and paint don’t freeze – there are plenty of low-cost garden shed heaters that will keep out the chill.
These heaters can be used in sheds, garages, workshops, conservatories and greenhouses.
There are several varieties to choose from: electric radiators, fan heaters, halogen heaters, tubular heaters and paraffin heaters. Many of these are very efficient and don’t cost too much to run. Plus, paraffin heaters allow you to heat a shed or greenhouse to keep it above freezing even if you don’t have an electricity supply to the building.
Of course, it can be hard to know how to choose the best shed heater for your situation. So, I’ve put together the following information to help you make an informed choice:
In this list of best shed heaters you will notice that there are several different types. These all have different attributes and varying advantages and disadvantages. Here are the different styles of heater available and their attributes:
Electric radiators offer a simple solution when you need extra heat. Simply plug one in, wherever you need it, and away you go. Oil-free versions are more economical to run and more environmentally friendly than oil-filled types. They are quite low cost to run, meaning these heat sources are ideal if you want to warm a room up continuously over a long period. Some of them also have a frost-free setting so these are perfect for protecting plants in the greenhouse or tools and paints in the shed. Radiators provide a very safe way to heat a room so are particularly suitable if you have children or pets.
Electric radiators are a safe, versatile and cost-effective way to provide heat in a variety of situations.
Fan heaters provide instant heat and can warm up a room in minutes. They also do a good job of circulating warm air into every nook and cranny. However, they are more power hungry than other heat sources. This means they are more suitable for quick blasts of heat for short periods, rather than keeping a room warm all day. Fan heaters have safety features that prevent them from overheating and ensure they cut out if they are knocked over. They also come in a range of stylish designs.
Portable halogen heaters
Halogen heaters use halogen elements to provide heat. They may cost a little more to buy than other types of heater, however, they are sturdy, durable and cheap to run. They come with plenty of safety features too, and will cut out if they are toppled over. The halogen bulbs may need to be replaced from time to time.
Low-energy tube heaters
If you simply want to keep a room or outbuilding frost free, then a low-energy tube heater may be the perfect option. These are designed to provide steady heat and protect rooms from frost, condensation and damp. If you need to keep your greenhouse, shed or garage frost free then these are a simple, low-cost solution.
Paraffin heaters offer a simple solution to heating buildings with no electricity supply. They are cheap to buy, simple to use and reasonably cost-effective to run. Modern paraffin heaters are also safe to use, though you should follow all instructions and safety guidelines provided by the manufacturer carefully. One drawback is that you will have to buy, store and safely dispose of paraffin, which can be an extra fuss for those who aren’t use to doing so.
Not all heaters go about heating in the same way. Convection heaters heat up the air around the heater, with then rises when warm and moves around the room. This process continues and creates a cycle of warm air moving through the space. Radiation heaters do not focus on warming up the air, but on directly passing heat to objects in front of them.
As a result, convection heaters may be more suited to situations where you want to heat a whole room, whereas a radiation heater might be more suitable to providing quick blasts of heat when you feel it’s needed.
Heaters that heat via convection are: electric radiators, fan heaters, tube heaters and paraffin heaters.
Heaters that heat via radiation are: halogen heaters.
Be aware that there are some health concerns connected with using a paraffin heater in an enclosed space. Mainly because, through their process of fuel burning, they release pollutants such as carbon monoxide, nitrogen oxides and sulphur dioxide. As a result, it is generally recommended to use these heaters with a window open.
Avoid leaving heaters switched on and unattended as much as possible. Although many of the best shed heaters have safety functions, generally meaning they will turn off if they start to overheat, you can never be completely certain when it comes to a heating device.
Shed Heater FAQ
To keep an area frost free, the low energy tube heaters that are often sold as greenhouse heaters would be ideal. They cost very little to run and are safe and effective. They can be wall mounted or floor standing, and you can also buy protective metal housings for them – this can be a good idea if they are in reach of little ones.
There are a couple of options that will work in this situation. The first is a low energy tube that will keep the room frost free. These will keep a small shed at about 6°C even when the temperature outside is below freezing. Metal housings can be bought for these to make sure your pets can’t get too close to them as they get quite hot to the touch. The other option is an oil-free radiator with a frost-free setting which will also be safe and economical to run.
Damp, freezing conditions can have an adverse effect on a range of items in your shed. Paints can freeze, metal tools can rust, and plastic parts can become brittle. In addition, the grease and other lubricants in power tools can freeze.
You only need to keep the shed just above freezing to prevent this damage so consider installing a heater that has a frost-free setting. In addition, allow any tools you use to warm up to room temperature before using them.