800 W infrared panel heater buying guide
Updated: 22 October 2026
You want one spare room or a home office warm. An 800 W infrared panel heater buying guide settles three things before the brand: whether 800 W fits that room, whether a thermostat is in the box, and whether you will mount it on the wall. On amazon.co.uk on 20 October 2026 this set runs from £109.99 to £169.90. The [800W infrared panel heater comparison](/hub/heating/800w-infrared-panel-heater) holds the specification rows. Peter F. compared those listings with public UK guidance. There was no lab test. A qualifying purchase can earn a commission at no extra cost to you.
You want one spare room or a home office warm.
You want one spare room or a home office warm. An 800 W infrared panel heater buying guide settles three things before the brand: whether 800 W fits that room, whether a thermostat is in the box, and whether you will mount it on the wall. On amazon.co.uk on 20 October 2026 this set runs from £109.99 to £169.90. The 800W infrared panel heater comparison holds the specification rows. Peter F. compared those listings with public UK guidance. There was no lab test. A qualifying purchase can earn a commission at no extra cost to you.
Our top picks
| Badge | Product | Control | Coverage | Mount | Note | Price | Offer |
|---|---|---|---|---|---|---|---|
| Best overall |  Hocosyme Hocosyme thermostat | Remote and timer | 8–20 m² | Wall kit | 8.8 | about £129.99 | View offer |
 Hocosyme Hocosyme UK-T-800W | Not included | 8–20 m² | Wall kit | 5.8 | about £109.99 | View offer | |
 Könighaus Könighaus Smart Dual 800 W | Wi-Fi schedule | No m² printed | Wall or feet | 7.4 | about £169.90 | View offer |
On this page
What 800 W means in a UK room
At full output, 800 W uses 0.8 kWh an hour, about 21p on Ofgem’s 26.32p/kWh Direct Debit average for 1 October to 31 December 2026 in England, Scotland and Wales. Northern Ireland has its own tariff, so treat 21p as a Great Britain example. The standing charge is separate. Energy Saving Trust classes infrared as direct electric heat, one unit of heat per unit of electricity. A graphene line does not reduce that draw while the element is on. Seller square-metre figures are guides, not a British Standard. Hocosyme prints 8–20 m². Könighaus prints about 11–21 m² for the P-800, and another field says 8–21 m². The Smart Dual extract has no square-metre figure. Surya’s 25–35 W per cubic metre rule of thumb puts 800 W near 23–32 m³ in an average post-1980 home, and less if the room is leaky or tall. The running cost page works the pence for an evening.
Control tiers in this comparison set
An uncontrolled panel stays at full output until you switch it off. The Hocosyme UK-T-800W at £109.99 and the wheeled Hocosyme at £119.99 only recommend a thermostat. The Könighaus P-800 at £138.90 says the thermostat is not included, so the lower shelf price still needs a controller. The Hocosyme T-WK-800W at £129.99 lists a remote with a 10 m range, timed on and off, and temperature buttons. The Könighaus Smart Dual 800 W at £169.90 adds Wi-Fi and weekly schedules, and it is the only listing here that can turn the output down when you are out without a separate plug. The best 800 W infrared panel heater page turns those tiers into a first listing to open.
Mounting and line of sight
Infrared warms people and surfaces in line of sight. A panel behind a sofa heats the fabric. The basic and thermostat Hocosyme models include a wall kit, weigh about 6 kg, and are about 2.2 cm thick, with a 1.8 m cable. The P-800 is wall-only, at 6.76 kg. The portable Hocosyme adds castor wheels. Hocosyme listings claim up to about 120 °C. Do not cover it. The Smart Dual is 9 kg, with a 90 × 90 cm face, feet and a towel holder. A towel rail does not decide a bathroom install. Zones and IP claims sit on the bathroom page.
Plug, warranty, and when to walk away
Regulation 35 of the Electrical Equipment (Safety) Regulations 2016 requires a BS 1363 plug for this equipment supplied in Britain. One UK review of the P-800 confirms a UK plug on the panel and criticises a bundled timer with an EU socket. An EU-only plug is a return. Hocosyme claims 10 years. The P-800 claims five years, and the title mentions TÜV SÜD. That mark is not a measurement of your bedroom, and it does not cancel UK reports of yellowing, burn marks and charring. Smell, a mark or a bent face means stop and return it. Walk away when coverage is the only reason to buy, when you will not add a recommended thermostat, or when a bathroom listing offers an IP bullet without a wiring plan.
Common questions
Is 800 W enough for a 12 m² bedroom?
It can be, when the ceiling is about 2.4 m and the room is reasonably insulated. That volume is about 29 m³, so 800 W is roughly 28 W per cubic metre, inside Surya’s 25–35 W/m³ rule of thumb for an average post-1980 home. The printed ranges, 8–20 m² and 11–21 m², already carry an insulation caveat. A tall, leaky or north-facing room at the same floor area can sit outside the band. If the radiator struggles on the coldest evenings, treat 800 W as the edge, not spare capacity.
Do I need a built-in thermostat?
You need some temperature control if you do not want full output for every minute the panel is on. In this set only the Hocosyme T-WK-800W and the Könighaus Smart Dual include onboard temperature control. The cheaper Hocosyme panels recommend a thermostat, and the P-800 says one is not included. A separate controller can work well. Add its price before you decide the £109.99 panel is the cheaper buy.
Wall mount or feet for a home office?
Use a wall kit when the desk stays put and you can aim the face at the chair. The basic Hocosyme, the thermostat Hocosyme and the P-800 are wall-led. Use feet or wheels when you move between two spots, which is what the portable Hocosyme and the Smart Dual feet are for. Keep the chair in the radiant path. A panel aimed at the back of a monitor warms the screen, not you.
When is 800 W too small for a conservatory?
It is too small when heat loss sits above the seller range, which a glass conservatory often does. Large open-plan kitchens and rooms you already run with a 2 kW fan heater on high are the other usual misses. A second uncontrolled panel doubles the draw. If the job is a whole floor, keep gas or a heat pump for the house and use 800 W for one occupied zone.
Does TÜV SÜD mean the room size was tested?
No. A TÜV SÜD line on the P-800 title is not a test of 11–21 m² in your house, and it does not override UK reviews that report discolouration and burn marks. Read the coverage figure as a filter, then check control, the BS 1363 plug and the mounting before you treat a badge as the reason to buy.
Related pages
Sources
Public UK sources named below. amazon.co.uk prices, stars and review counts on these five listings were taken from the listing files read on 20 October 2026. Page updated October 2026.
- Ofgem, 1 October–31 December 2026 price cap (retrieved 20 October 2026)
- Energy Saving Trust, Infrared heating explained (retrieved 20 October 2026)
- DESNZ infrared heating report (retrieved 20 October 2026)
- Electrical Equipment (Safety) Regulations 2016, regulation 35 (retrieved 20 October 2026)
- Approved Document P (retrieved 20 October 2026)
- IET Section 701 (retrieved 20 October 2026)
- SELECT bathroom pocket guide (retrieved 20 October 2026)