Electric Patio Heaters: Are Wall-Mounted Infrared Heaters Worth It for UK Gardens?

Wall-mounted infrared heaters are worth it for sheltered patios, balconies, and covered seating areas, where they free up floor space and warm people directly. They are much less convincing in open, windy gardens. If you are weighing up an patio heater electric model, four things decide whether it pays off: where you fix it, the wattage you choose, what it costs per hour, and how safely it is powered.

This guide explains how these heaters work, where they perform best, how to estimate running costs, and what to check before buying from Britwall's outdoor patio heater range.

What Is an Electric Patio Heater and How Does It Work?

An electric patio heater turns mains electricity into heat and aims it at the area where people sit. Most garden models use infrared. Instead of warming air that drifts away outdoors, they radiate energy that warms the people and objects in front of them. The Energy Saving Trust notes that many electric patio heaters work this way, which should warm you faster with less wasted energy.

How infrared patio heaters produce radiant heat

Britwall's two wall-mounted heaters use a quartz tube heating element, which the product pages describe as reaching a sun-like warmth within seconds. It feels like stepping into winter sunshine: the air stays cold, yet you are warm wherever the light reaches. Electrical Safety First describes quartz types as short-wave heaters with a quick warm-up and adds that larger outdoor areas are better served by more than one heater.

Are Wall-Mounted Infrared Patio Heaters Worth It?

They are worth it if the space has some shelter and you will use it regularly on cool evenings. If you sit outside twice a year on an open lawn, an extra layer will do more than a heater.

In their favor

•     Clear floor space. No base to knock over, no stand eating into a small terrace.

•     Directional warmth. Mounted above the seating area, the heater warms people from above rather than the whole garden.

•     Adjustable output. Both Britwall models have three heat settings, a remote control, and an LED display.

•     Cheaper than gas. The Energy Saving Trust says electric patio heaters cost less to run than gas heaters or fire pits.

Against them

•     Wind. Nothing outdoors holds heat in. The Energy Saving Trust warns that some patio heaters waste energy warming air that quickly disperses and suggests extra layers or windbreak panels first.

•     Fixed position. Once it is on the wall, it stays there.

•     Installation. You need a suitable wall, a safe power supply, and the clearances set out in the manual.

Wall-Mounted vs. Freestanding Patio Heaters

Where a Wall-Mounted Patio Heater Works Best

Britwall's product pages position the 3000W model for sheltered gardens, balconies and pergolas, and the 2000W model for gardens, patios and balconies. Shelter keeps the warmth where you sit.

•     Face the seating area, not the whole garden.

•     Keep the space above and below clear. Electrical Safety First says nothing should sit above or below a patio heater. Check the manual for safe distances.

•     Get out of the wind. A house wall or pergola helps, and Britwall's outdoor solutions range includes garden materials such as fencing and decking if you need more screening.

•     Plan for after dark. Outdoor lighting completes an evening space.

Neither heater has a published heated-area figure, so treat claims of specific coverage with caution and follow the manual for mounting height.

Wattage and Heat Settings: Britwall's Two Wall-Mounted Models

Wattage is the rate at which a heater draws electricity. It drives heat output and running cost, but a higher figure does not guarantee a larger heated area. The two models have different settings, so never assume one model's figures apply to the other.

Ener-J 2000W Wall-Mounted Infrared Patio Heater

•     Settings: 750W, 1500W, and 2000W; IP34; quartz tube; remote and LED display

•     Manufacturer datasheet: 915 x 90 x 200 mm, 2.65 kg, UK plug

Ener-J 3000W Infrared Patio Heater

•     Settings: 1000W, 2000W, and 3000W; IP34; quartz tube; remote and LED display

•     Product page: 1085 mm wide, 3 kg

The 3000W model's middle setting equals the 2000W model's top setting, so the extra 1000W is for colder nights. Its product page does not say how it is supplied, so check the manual or ask Britwall before planning your socket or calling an electrician.

How to Choose an Outdoor Patio Heater

There is no single best patio heater electric model for every garden. Work through this checklist.

1.     Shelter. A covered or semi-covered position makes the biggest difference.

2.     Seating area. Larger areas may need more than one heater.

3.     Power supply. A plug-in heater needs a socket within cable reach, and Electrical Safety First advises against extension leads. Fixed wiring is a job for a registered electrician.

4.     Settings. Choose a low setting you will actually use on mild evenings.

5.     IP rating. Both models are IP34; see the safety section below.

6.     Paperwork. GOV.UK guidance says electrical equipment sold in Great Britain needs a CE or UKCA marking and clear English instructions. Keep the manual.

7.     Warranty. Both Britwall listings show a one-year warranty.

Patio Heater Electric Running Costs in the UK

Estimate any heater's cost with this formula:

Power in kW × hours of use × electricity unit rate = estimated running cost

This guide uses the Ofgem price cap average of 26.32p per kWh for electricity (standard variable tariff, Direct Debit), which applies from 1 October to 31 December 2026. The cap is reviewed quarterly, so swap in the rate on your own bill.

These are rounded estimates that assume full rated power for the whole time the heater is on. Two three-hour evenings a week at 2000W would use 12 kWh, roughly £3.16. Dropping from 2000W to 1500W saves about 13p an hour, which is why a lower setting on mild nights matters for outdoor heating efficiency.

For context, the Energy Saving Trust's July 2026 estimate for heating 20 m² for two hours was £3.10 for electric, £6.20 for a fire pit, and £9.30 for gas. That scenario is not comparable with a single heater's hourly cost, but it shows electric as the cheapest of the three.

Patio Heater Electric Safety: Sockets, RCDs, and IP Ratings

Outdoor electrical safety comes down to the socket, the cable, and the position. Electrical Safety First's guidance covers the essentials:

•     RCD protection. Sockets supplying outdoor equipment should have a residual current device (RCD), which cuts the power if there is a fault. If yours has none, an RCD plug is the stopgap.

•     Weatherproof sockets. An outdoor socket should be splashproof and rated IP44 or higher.

•     No extension leads, no covering the heater while it is on, and no combustible materials nearby.

•     Outdoors only. Outdoor patio heaters are not for indoor use.

•     Buy new. Avoid second-hand heaters and register yours so you hear about any recall.

What does IP34 mean? The 3 covers solid objects larger than 2.5 mm; the 4 covers water splashing from any direction. It does not cover jets or sustained heavy exposure, so fit the heater under cover. If there is no socket in the right place, ask a registered electrician to add one.

Maintenance and Everyday Use

•     Let the heater cool completely before wiping dust from it.

•     Check the cable and plug for damage before each use.

•     Check the wall bracket and fixings from time to time.

•     Use the lowest comfortable setting and switch off at the socket afterwards.

Who Should Consider a Wall-Mounted Patio Heater?

A good fit: a covered patio, pergola, gazebo, or balcony; a small terrace where a stand would be in the way; a suitable wall; and an RCD-protected socket.

Probably not: an open lawn exposed to wind, a rented home where you cannot fix it to the wall, or a garden where you want to move the heater around, which suits a freestanding model better.

If it is an indoor room that needs warming, Britwall's guides to infrared panel heating and wall-mounted electric radiators cover those options.

Final Buying Considerations

A wall-mounted infrared heater earns its place when shelter, position, and power supply line up. Choose settings that let you run on a lower output most evenings, check the socket and RCD protection, and use the cost formula with your own tariff. The 2000W model tops out at 2000W, so its maximum hourly cost is lower; the 3000W model adds a higher top setting for colder nights.

Whichever patio heater electric model you choose, heating an open space is always a compromise. Among garden heating solutions, a sheltered spot plus the right settings gets the most from your electricity.

Ready to compare? Compare Outdoor Patio Heaters.