The best heater for your home, office, garage or conservatory depends on the space you want to warm, how often you use it, how well insulated it is and whether you need gentle comfort or powerful practical heating.
A small bedroom does not need the same heater as a cold garage. A home office used every day may need something compact, quiet and efficient, while a workshop needs stronger airflow and a more rugged design. A conservatory can be especially difficult because glass loses heat quickly, so the best option may depend on whether you only use the room occasionally or want year round comfort.
This guide explains the best heater for different rooms and spaces, including bedrooms, home offices, living rooms, garden offices, conservatories, garages and workshops.
You can also browse our portable heating units, compare 3kW and below portable heaters, or view our industrial portable heaters for garages, workshops and larger spaces.
Best Heater By Room: Quick Guide
Every space has different heating needs. The table below gives a quick starting point.
| Room Or Space | Best Heater Type | Typical Starting Point | Best CoolEasy Range |
|---|---|---|---|
| Bedroom | Compact portable heater | 1.5kW to 2kW | 3kW and below portable heaters |
| Home office | Portable electric heater | 1.5kW to 2kW | Portable heating units |
| Living room | Portable heater or fitted heating and cooling system | 2kW or fitted system | Heating and cooling systems |
| Garden office | Portable heater or heating and cooling system | 2kW to 3kW | Portable heating units |
| Conservatory | Portable heater or fitted heating and cooling system | 2kW to 3kW, depending on insulation | Heating and cooling systems |
| Garage | Workshop fan heater | 2kW to 5kW | Industrial portable heaters |
| Workshop | Workshop or industrial heater | 3kW to 5kW plus | Industrial portable heaters |
| Warehouse or industrial unit | High output industrial heater | 9kW plus | 9kW and above portable heaters |
This is only a guide. Room size, insulation, ceiling height and draughts all affect how much heating power you need. For a detailed sizing breakdown, read our What Size Heater Do I Need? guide.
What Makes A Heater Suitable For A Room?
Choosing the best heater is not just about wattage. A heater needs to match the room, the way the space is used and the type of heat you need.
Before choosing a heater, consider:
- The size of the room or workspace
- How well insulated the space is
- Whether the room has draughts
- How high the ceiling is
- How quickly you need the space to warm up
- Whether you need occasional or regular heating
- Whether the heater needs to be moved between rooms
- Whether you need a domestic, workshop or industrial heater
- Whether cooling in summer would also be useful
A compact portable heater is ideal for small rooms and personal warmth. A fan heater is better when you want to move warm air around a garage or workshop. A fitted heating and cooling system may be better for rooms used every day throughout the year.
Best Heater For A Bedroom
For most bedrooms, the best heater is compact, easy to control and suitable for lower noise use.
Bedrooms are usually smaller than living rooms, garages or workshops, so you do not normally need a large industrial heater. A 1.5kW or 2kW portable heater is often the best starting point for occasional bedroom warmth.
A bedroom heater is useful if:
- The room feels cold in the morning or evening
- You need extra warmth in a spare bedroom
- You want to warm one room without turning up the whole house heating
- You need a heater that can be moved when not in use
- You want quick top up heat during colder periods
What To Look For In A Bedroom Heater
- Compact size
- Stable base
- Simple controls
- Adjustable heat settings
- Thermostat control where available
- Suitable safety features
- A design that suits domestic use
For bedroom use, consider the Glaziar 1.5kW Globe Personal Heater for smaller spaces or the Glaziar Portable 2kW PTC Heater in White for a little more output.
Best Heater For A Home Office
Home offices are one of the best use cases for a portable electric heater.
If you work in one room during the day, it can be more practical to heat that room rather than increasing the temperature across the whole home. A compact portable heater gives you targeted warmth where you are sitting.
For many home offices, a 1.5kW to 2kW heater is the right starting point. The best choice depends on the size of the office, how long you work there and how well insulated the room is.
What To Look For In A Home Office Heater
- Portable design
- Compact footprint
- Adjustable heat output
- Thermostat control
- Easy positioning near your workspace
- A style that fits a home environment
- Suitable running cost for regular use
A smaller portable heater can be a sensible option if your home office only needs top up warmth. If the office is in a garden building, garage conversion or poorly insulated room, you may need a more powerful option.
Good home office options include the Glaziar 1.5kW Globe Personal Heater, the Glaziar Portable 2kW PTC Heater in White and the Glaziar Portable 2kW PTC Heater in Black.
Best Heater For A Living Room
For a living room, the best heater depends on whether you need occasional top up warmth or a more regular heating solution.
A 2kW portable heater can work well in a smaller living room, especially if the room is already heated but needs extra warmth at certain times of day. However, larger living rooms, open plan spaces and rooms used every evening may need a more considered approach.
If the living room is used all year and also gets too warm in summer, a heating and cooling air conditioning system may be a better long term option than a portable heater alone.
Portable Heater Or Fitted System For A Living Room?
| Choose A Portable Heater If... | Choose A Heating And Cooling System If... |
|---|---|
| You only need occasional extra warmth | You use the room every day |
| The room is small or medium sized | The room is larger or open plan |
| You want something that can be moved | You want a permanent, neater solution |
| You do not need cooling in summer | You want heating in winter and cooling in summer |
For portable warmth, browse our portable heating units. For a permanent all season solution, browse our heating and cooling systems.
Best Heater For A Garden Office
Garden offices can be difficult to heat because their performance depends heavily on insulation.
A well insulated garden office may warm up quickly with a 2kW portable heater. A poorly insulated garden room, cabin or shed office may lose heat quickly and need a stronger heater or a fitted heating and cooling system.
For occasional use, a portable heater is usually the simplest option. For daily use, especially across winter and summer, a heating and cooling system may offer better comfort because it can warm the office in colder months and cool it during hot weather.
What To Consider For Garden Office Heating
- Wall insulation
- Roof insulation
- Floor insulation
- Window and door quality
- How often the office is used
- Whether you need summer cooling as well
- Whether the room has a suitable power supply
- Whether you want portable or fitted heating
For simple portable heating, look at our 3kW and below portable heaters. For long term year round comfort, consider our heating and cooling systems.
Best Heater For A Conservatory
Conservatories are often harder to heat than normal rooms. They usually have more glass, more external surfaces and higher heat loss than a standard bedroom or office.
A portable electric heater can work well for occasional use, especially in a small conservatory. But if the room is used daily, or if it becomes too cold in winter and too hot in summer, a fitted heating and cooling system may be a better long term solution.
Why Conservatories Are Harder To Heat
- They often have more glass than standard rooms
- They can lose heat quickly in cold weather
- Older conservatories may have poor insulation
- Draughts can make the space feel colder
- They can overheat in summer as well as feel cold in winter
Best Heating Options For A Conservatory
| Conservatory Use | Best Option | Why |
|---|---|---|
| Occasional winter use | Portable electric heater | Simple and flexible |
| Small conservatory | 2kW portable heater | Good starting point for top up warmth |
| Large or cold conservatory | More powerful portable heater or fitted system | More output may be needed |
| Year round use | Heating and cooling system | Heats in winter and cools in summer |
If your conservatory is uncomfortable in both summer and winter, browse our heating and cooling systems.
Best Heater For A Garage
Garages usually need a different type of heater from bedrooms, offices and living rooms.
A garage can be colder, draughtier and less insulated than a normal room. It may also have a concrete floor, large doors and more air movement. Because of this, a small domestic heater may struggle to make a noticeable difference.
For most garages, a workshop style fan heater is a better starting point. It provides practical warmth and helps move warm air around the space.
What To Look For In A Garage Heater
- Rugged construction
- Strong airflow
- Suitable output for the space
- Portable design
- Stable frame or base
- Simple controls
- Overheat protection
- Correct electrical supply
For smaller garages and hobby spaces, the Olympus 2.0kW Portable Fan Heater for Garages and Workshops is a useful starting point.
For larger or colder garages, consider the Olympus Pro 3.0kW Workshop Heater, the Trotec 3.0kW TDS 20 R Electric Fan Heater or the Trotec 5.0kW TDS 30 R Electric Fan Heater.
Best Heater For A Workshop
Workshops need practical heating that suits a working environment.
The best workshop heater should be strong enough for the space, easy to position and robust enough for regular use. A domestic bedroom heater is usually not the best choice for a workshop because it may lack the airflow, durability and output needed for colder working spaces.
A 3kW heater is a good starting point for many small workshops. Larger spaces may need 5kW or an industrial heater with higher output.
What To Consider For Workshop Heating
- Workshop size
- Ceiling height
- Insulation level
- How often doors are opened
- Whether you need full space heating or spot heating
- How long the heater will run
- Available electrical supply
- Whether the heater needs to move between areas
For workshops, compare our industrial portable heaters, including Olympus and Trotec options.
Best Heater For A Warehouse Or Industrial Unit
Warehouses and industrial units need high output heating because they are larger, more open and often have higher ceilings than domestic rooms.
In these environments, a 2kW or 3kW heater may only provide limited local warmth. For larger industrial spaces, you may need a 9kW, 15kW or 30kW heater, depending on the building and how the space is used.
For large spaces, it is important to check:
- The total area you need to heat
- The ceiling height
- Insulation and heat loss
- Whether doors are opened regularly
- Whether you need temporary or ongoing heating
- Whether you need spot heating or full space heating
- Whether you have the correct power supply
For larger commercial and industrial spaces, view our 9kW and above portable heating units and three phase portable heaters.
Best Heater For Rental Properties
Rental properties often need flexible heating solutions, especially where permanent installation is not possible or where a tenant wants extra warmth in one room.
A portable heater can be useful because it does not require installation and can be moved between rooms. This makes it suitable for bedrooms, living rooms, home offices and occasional use spaces.
For rental properties, look for:
- Plug in use
- Easy portability
- Compact design
- Suitable safety features
- Simple controls
- Appropriate wattage for the room
Portable heaters are usually the simplest choice where you cannot install a fitted system. For more options, browse our portable heating units.
Portable Heater Or Heating And Cooling System?
Portable heaters are great for flexible, targeted warmth. Heating and cooling systems are better when you want a more permanent all season solution.
| Choose A Portable Heater If... | Choose A Heating And Cooling System If... |
|---|---|
| You want quick top up heat | You want long term comfort |
| You only need to heat one room occasionally | You use the room every day |
| You need a heater you can move | You want a neat fitted solution |
| You do not want installation | You are happy to arrange installation |
| You only need heating | You want heating in winter and cooling in summer |
A portable heater is often best for bedrooms, home offices, spare rooms, garages and temporary spaces. A heating and cooling system may be better for living rooms, garden offices, conservatories and rooms used all year.
To understand this option in more detail, read our guide: Can Air Conditioning Heat a Room?
Best Heater For Low Running Costs
The best heater for low running costs is not always the smallest heater. It is the heater that is correctly matched to the space.
A small heater may cost less per hour at full output, but if it is too small for the room, it may run constantly and still not provide enough warmth. A correctly sized heater with thermostat control can often be more practical.
To keep running costs manageable:
- Choose the right size heater for the room
- Use a thermostat where available
- Close doors to keep heat in the space
- Reduce draughts around windows and doors
- Only heat the room you are using
- Turn the heater off when the room is not occupied
- Use timers where available
- Do not use an industrial heater in a small domestic room
For more detail, read our guide: How Much Does an Electric Heater Cost to Run?
Recommended Heaters By Room
Here are some useful CoolEasy heater options depending on where you need warmth.
Best For Bedrooms: Glaziar 1.5kW Globe Personal Heater
The Glaziar 1.5kW Globe Personal Heater is a compact option for bedrooms, small rooms and personal warmth.
It is best suited to smaller spaces where you want occasional top up heat without using a larger heater.
Best For Home Offices: Glaziar Portable 2kW PTC Heater
The Glaziar Portable 2kW PTC Heater in White and Glaziar Portable 2kW PTC Heater in Black are useful options for home offices, spare rooms and small living spaces.
They are good choices where you want portable warmth with a domestic style finish.
Best For Garages: Olympus 2.0kW Portable Fan Heater
The Olympus 2.0kW Portable Fan Heater for Garages and Workshops is designed for garages, workshops, small warehouses, trade vans, site work and garden buildings.
It is a practical choice when you need a more rugged heater than a standard domestic portable model.
Best For Workshops: Olympus Pro 3.0kW Workshop Heater
The Olympus Pro 3.0kW Workshop Heater is a stronger option for hobby workshops, garages and practical workspaces.
It is suitable where you need more output and a more robust heater for working environments.
Best For Larger Workspaces: Trotec Electric Fan Heaters
The Trotec 3.0kW TDS 20 R Electric Fan Heater and Trotec 5.0kW TDS 30 R Electric Fan Heater are useful for garages, workshops, construction spaces and unheated indoor environments.
Choose these when you need stronger airflow and higher output than a smaller room heater.
Best For Warehouses And Industrial Spaces: Olympus Industrial Heaters
For larger industrial spaces, compare the Olympus 9.0kW Industrial Space Heater, Olympus 15.0kW Industrial Heater and Olympus 30.0kW Industrial Heater.
These are designed for large workshops, warehouses, commercial spaces and industrial environments where smaller heaters are not enough.
Best For Year Round Living Spaces: Heating And Cooling Systems
If you are heating a living room, conservatory, garden office or home workspace used all year, it may be worth considering a heating and cooling system.
These systems can provide warmth in colder months and cooling in summer, making them a strong option for rooms that are used regularly.
Room By Room Heater Buying Checklist
Before choosing your heater, ask these questions:
- What room or space am I heating?
- How large is the room?
- Is the room well insulated?
- Does the room have draughts?
- How often will I use the heater?
- Do I need quiet domestic heating or rugged workspace heating?
- Do I need the heater to be portable?
- Is a standard plug in heater suitable?
- Would a fitted heating and cooling system be better long term?
- Do I need help choosing the correct wattage?
If you are unsure about output, start with our heater size and wattage guide.
Best Heater FAQs
What is the best heater for a bedroom?
The best heater for a bedroom is usually a compact portable heater between 1.5kW and 2kW, depending on the room size and insulation. It should be easy to control and suitable for domestic use.
What is the best heater for a home office?
A 1.5kW or 2kW portable electric heater is usually a good starting point for a home office. It lets you warm the room you are using without heating the whole home.
What is the best heater for a garage?
A garage usually needs a more rugged heater with stronger airflow. A workshop fan heater is often a better choice than a small domestic heater.
What is the best heater for a workshop?
For workshops, look for a practical fan heater or industrial portable heater with enough output for the space. A 3kW or 5kW heater is a useful starting point for many workshop environments.
What is the best heater for a conservatory?
For occasional use, a portable electric heater may be enough. For regular year round use, a heating and cooling system may be better because conservatories can be cold in winter and too warm in summer.
Is a 2kW heater enough for a room?
A 2kW heater can be enough for many small to medium domestic rooms, depending on insulation, draughts and ceiling height. Larger or colder spaces may need more output.
Should I buy a fan heater for a garage?
Yes, a fan heater can be a good choice for a garage because it pushes warm air into the space. For larger garages, choose a more powerful workshop or industrial heater.
Can I use a small portable heater in a workshop?
You can use a small portable heater only if it is suitable for the environment, but many workshops need more rugged heaters with stronger airflow and higher output.
What heater is best for a garden office?
A 2kW portable heater may be suitable for a well insulated garden office. For daily use, or if you also need cooling in summer, a heating and cooling system may be a better long term option.
What is the best heater for a large industrial space?
Large industrial spaces usually need high output heaters such as 9kW, 15kW or 30kW models. The correct choice depends on the building size, insulation, ceiling height and power supply.
Is it cheaper to heat one room with a portable heater?
It can be, depending on your heating system, electricity price and how long the heater runs. Portable heaters are most useful when you only need to heat one room or one work area.
Should I choose a portable heater or a heat pump system?
Choose a portable heater for flexible top up warmth. Choose a heat pump or heating and cooling system if you want a fitted all season solution for regular use.
Final Advice: Choose The Heater That Matches The Room
The best heater depends on where it will be used.
For bedrooms and home offices, choose a compact 1.5kW or 2kW portable heater. For garages and workshops, choose a rugged heater with stronger airflow. For warehouses and industrial units, choose a high output industrial heater matched to the space and power supply.
If you are heating a conservatory, garden office or living room that is used throughout the year, a heating and cooling system may be the better long term option.
Explore our portable heating units, browse industrial portable heaters, or speak to the CoolEasy team for help choosing the best heater for your room.