The best Klarstein infrared panel heaters, compared.
Top pick: Klarstein HTR10-WdwlS500wMtn – 500 W, 2.27 A and the 80 by 60 cm rows agree, with 4.5 from 12, the strongest star line in this set. Best value: Klarstein HTR10-WdwlS700wWave – The only large listing whose heat-output row stays at 700 W, at about £254.69. Updated October 2026.
A Klarstein infrared panel heater is a flat electric picture panel for an indoor wall on amazon.co.uk. It does not replace gas central heating or a heat pump. The set is four prints: mountain, blue wave, marble and world map. Trust a row only when the title, the output cell, the amps and the size agree. The mountain panel is 500 W at 2.27 A, and those rows match an 80 by 60 cm face. The marble title says 700 W while the heat-output row prints 7000 W. Saved review texts are not marked United Kingdom. The check order is in the [Klarstein buying guide](/hub/heating/klarstein-infrared-panel-heater/sub/klarstein-infrared-panel-heater-buying-guide). Air is the app branch on the world-map row. They are not patio heaters, halogen fires, oil radiators or plain panels. Energy Saving Trust says home wall panels are typically about 350–900 W, and that you should not swap gas central heating for whole-house infrared. The for Energy makes the money point in the same direction: full efficiency at the point of use still costs the unit rate. Electricity is still about four times the price of gas per unit, and a heat pump uses less electricity for the same heat.
A Klarstein infrared panel heater is a flat electric picture panel for an indoor wall on amazon.co.uk. It does not replace gas central heating or a heat pump.
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Personal buying guide
Question 1 of 2
How wide is the wall?
The Klarstein mountain panel at £168.29 is an 80 cm by 60 cm picture heater, 5 cm deep and 4.8 kg, with a clean 500 W line at 220 V and 2.27 A in the spec table. Amazon.co.uk shows 4.5 out of 5 from 12 ratings, the highest star average in this four-row comparison, but the written reviews in the listing extract are not marked United Kingdom, so treat the count as thin evidence. Bullets claim IP44, a Wi-Fi app, an electronic thermostat and a remote, while the seller prints 16.3 m² coverage. One UK-marked review returned the unit because roughly 20 cm side clearance could not be met on their wall, which is a layout warning rather than a universal Klarstein rule. The listing warns that English in the manual is not guaranteed, and no BS 1363 plug standard is printed. At the Ofgem Direct Debit average of 26.32 p/kWh for 1 October to 31 December 2026, full power is about 13 p an hour before the standing charge, and a thermostat should cut that duty cycle.
Pros
Cons
Best for: A small room or home-office wall where 500 W and the mountain print fit and you already heat the house another way
Less suitable: A 120 cm feature wall, a buyer who needs unambiguous UK reviews, or a bathroom you plan to plug in without checking zones first
Specifications
Common questions
Does the 500 W mountain panel claim a bathroom rating?
The bullets say IP44 protection against water and dust and that it can be used as a bathroom heater. The indoor/outdoor field says indoor. The listing does not state a plug type or a bathroom zone.
What room size does the listing state?
The heating coverage field says 16.3 m². The panel is 80 x 60 x 5 cm and 4.8 kg, at 500 W, 220 V and 2.27 A.
Is a timer named on this listing?
No timer duration is named in the bullets. Special features list a digital display, an electronic thermostat, fast heating, a remote control and energy-saving. Reviews mention programming hours in the app.
The blue-wave panel at £254.69 is the wide 120 cm by 60 cm format at 7.1 kg, and it is the only large listing here whose heat-output row stays at 700 W with 3.18 A at 220 V and no 7000 W clash. Amazon.co.uk shows 4.0 out of 5 from 60 ratings, the largest count in the set, but the captured review texts are marked Germany or the Netherlands and duplicate the marble ASIN, so the average is not British owner testimony. Bullets describe a Wi-Fi app, a thermostat and IP44, with coverage marked approximately 10–15 m². The maximum setting on the listing is 37 °C, which is a control limit, not a promise of room temperature. Review themes mention a standby light and app pairing friction, though fixes are not documented in these listings. Mounting material is listed, yet no plug standard is printed and 7.1 kg needs solid fixings. Full power is about 18 p an hour at 26.32 p/kWh before the standing charge when the element runs flat out.
Pros
Cons
Best for: A living room or office feature wall where you want the large blue print and a 700 W line you can defend from the spec table
Less suitable: Tight budgets, small rooms already served by 500 W, or a bathroom install decided from IP44 bullets alone
Specifications
Common questions
What output and size does the blue-wave listing state?
Heat output is 700 W at 220 V and 3.18 A. Dimensions are 5 x 120 x 60 cm and weight is 7.1 kg. Coverage is marked approximately 10–15 square metres. The maximum temperature setting is 37 °C.
Does it include a weekly timer?
The bullets describe Wi-Fi programming in the Klarstein app and a thermostat. They do not name a weekly timer. Special features only say easy to use.
What is in the box?
The listing includes one infrared heater, mounting material, and a multilingual manual. It says English is not guaranteed.
The marble print at £227.70 is sized 120 cm by 60 cm and 7.1 kg in the dimension row, with a title that says 700 W but a heat-output field that prints 7000 W. Voltage 220 V and amperage 3.18 A match the blue-wave 700 W listing, which is why most buyers treat 700 W as the intended figure and the four-digit row as a catalogue error. Amazon.co.uk shows 4.0 out of 5 from 60 ratings, yet the review texts in the listing extract match the blue-wave ASIN and are not marked United Kingdom, so you are not looking at a second independent sample. Bullets still claim IP44, bathroom suitability, a Wi-Fi app and tip-over protection on a wall-hung panel. An on/off timer appears in special features while weekly scheduling is not named. If you accept the wattage clash and shared reviews, you get a mid-price marble face; if you need a listing you can quote without caveats, the blue-wave row is the cleaner 700 W choice at a higher shelf price.
Pros
Cons
Best for: A buyer who wants the marble art at 700 W and will verify the rating plate before drilling
Less suitable: Anyone who needs a self-consistent amazon.co.uk spec sheet or a separate UK review pool
Specifications
Common questions
Is this marble panel 700 W or 7000 W?
The title says 700 W. The heat-output row says 7000 W. Voltage is 220 V and amperage is 3.18 A, the same pair as the 700 W blue-wave listing. The listing does not resolve the clash.
Does the listing claim bathroom use?
The bullets cite IP44 water and dust protection and say the panel is suitable for a wet room or bathroom. Indoor/outdoor usage is indoor. Plug type is not stated.
Are the 60 reviews a separate sample from the blue wave?
The star line is 4.0 from 60 on amazon.co.uk. The review texts in this listing match B08GWTMLWC and are not marked United Kingdom, so they are not a second UK sample.
The world-map Wonderwall at £283.09 is the costliest row and the only one that names a weekly timer and OpenWindow detection in the listing extract. It is also the messiest on paper: the title says 120 cm by 60 cm and 700 W, a bullet says 80 cm by 60 cm and 500 W, and the heat-output field prints 7000 W while amperage stays at 3.18 A. The dimension row backs the larger size and 7.1 kg, but the listing does not pick a single wattage for your bill maths. Amazon.co.uk shows 4.0 out of 5 from 38 ratings; seven review texts in the listing extract are from Germany and more than one report Wi-Fi pairing failure or an app that crashes, which matters because every panel here leans on phone control. The room-type field says bathroom, yet no IP code appears in the listing extract, unlike the three IP44 listings. Reviewers also mention a glue smell for about two days on first heat. Buy it for the map art and the named Smart extras only after you read the rating plate and accept app risk; skip it if you need a spec sheet you can photograph for a return.
Pros
Cons
Best for: A dry room where you want the map artwork and will verify wattage on the plate before mounting
Less suitable: Bathroom projects judged from room type alone, buyers who need a clean listing screenshot, or anyone who will not troubleshoot the app
Specifications
Common questions
Which size and wattage should you trust on the world-map listing?
The title says 120 x 60 cm, 700 W and 7–14 m². A bullet says 80 x 60 cm and 500 W. The heat-output row says 7000 W. The dimension row says 5 x 120 x 60 cm and 7.1 kg, at 220 V and 3.18 A. The listing does not pick a winner.
Does this listing state an IP rating?
No IP code is in the listing. The room-type field says bathroom. OpenWindow detection, a weekly timer and auto shut-off are named.
What do the reviews on the listing say about the app?
Seven texts are in the listing extract, all reviewed in Germany. More than one says Wi-Fi pairing failed. The star line on amazon.co.uk is 4.0 from 38.
Four amazon.co.uk picture-panel listings are scored. There is no lab test. Stars, review-sample size, whether the title, output, amps and size agree, and the control or splash lines in the listing extracts set the score. Weights sum to 100. The highest score is the top pick. Best value is a different row: the only large listing whose heat-output cell stays at 700 W.
Stars
40%Stars are the amazon.co.uk rating for that ASIN, scored as (rating / 5) times 40. The mountain panel is 4.5 from 12. The other three rows are 4.0.
Review sample
20%Under 20 reviews scores 4, 20 to 99 scores 10, and 100 or more scores 16. Saved review texts that are not marked United Kingdom lose 8. Marble and blue wave share one review body, so that pair loses a further 4.
Listing trust
25%Title, heat-output, amperage and size should agree, which scores 25. A 7000 W heat-output row against a 700 W title loses 12. A bullet that clashes with the title on size or wattage loses 8. Naming a bathroom with no IP code loses 4.
Control and kit
15%A named thermostat scores 5, a Wi-Fi app scores 5, a weekly timer or OpenWindow scores 3, mounting material in the box line scores 2, and a printed IP44 scores 2, capped at 15. A plug standard that is not printed loses 3. An English manual that is not guaranteed loses 2.
A Klarstein infrared panel heater is a flat picture panel for local warmth, not a replacement for gas central heating. Read the nameplate against the title before you compare prints or shelf prices. A 7000 W row beside 3.18 A is a clash. This is not a lab test, and an IP44 bullet is not a bathroom-zone approval.
A Klarstein infrared panel heater in this comparison is a flat electric picture panel for an indoor wall. The family name on these listings is Wonderwall. Air Art Smart is the app branch on the world-map row. The four prints are mountain, blue wave, marble and world map. They are not patio heaters, halogen fires, oil radiators or plain panels. You buy one for local warmth.
The marble and world-map heat-output rows print 7000 W. The current on both is 3.18 A at 220 V, which is about 700 W. The blue-wave row stays at 700 W. Quote the plate, not the four-digit cell.
Both star lines read 4.0 from 60. The review texts match and are not marked United Kingdom. That is one shared set, not two British samples of 60.
IP44 meets IPX4 for zones 1 and 2. Zone 1 still expects fixed, permanently connected equipment. The world map names a bathroom room type and states no IP code. Sockets stay at least 2.5 m from the zone 1 boundary.
Start with the rows that describe the same heater. The mountain panel is 500 W, 2.27 A and 220 V, at 80 × 60 × 5 cm and 4.8 kg, and those cells agree. The blue wave is 700 W and 3.18 A at 120 × 60 × 5 cm and 7.1 kg, and the heat-output row stays at 700 W. The marble title says 700 W while the heat-output row says 7000 W. The current matches the blue wave, so 700 W is the figure the electrics support and 7000 W is the clash.
Three listings claim IP44: mountain, blue wave and marble. The world map states no IP code, and its room-type field still says bathroom. IP44 meets the IPX4 line for zones 1 and 2 in BS 7671 Section 701. It does not clear a plug-in panel for zone 1. Ordinary sockets stay at least 2.5 m from the zone 1 boundary, on a 30 mA RCD. In England, a new circuit or a bathroom-location change can be notifiable under Approved Document P. Ask a landlord before anyone alters fixed wiring.
Three typical situations, each with a recommendation from this comparison.
For a small room or home office, start with the 500 W mountain panel if 16.3 m² on the listing is plausible for you. It is about £168.29, with agreeing watt, amp and size rows, and 4.5 from 12 ratings. The saved review texts are not marked United Kingdom.
For the large print and a 700 W cell that matches itself, take the blue wave and do not double-count the marble reviews. It is about £254.69, 120 by 60 cm, with 4.0 from 60 on one shared set that is not marked United Kingdom.
The marble panel is about £227.70 for a 120 by 60 cm face, below the blue-wave price. The title says 700 W and the heat-output row says 7000 W. Take it only if you will read the rating plate, and do not treat its 60 ratings as a second sample.
The top pick is the Klarstein mountain panel, HTR10-WdwlS500wMtn, at about £168.29. Wattage, amperage and size agree, and it has the strongest star line in this four-row set, 4.5 from 12. Those reviews are a thin sample, and the saved texts are not marked United Kingdom. Best value is the blue-wave panel, HTR10-WdwlS700wWave, at about £254.69, the only large listing whose heat-output row stays at 700 W. Skip the mountain panel if you need a 120 cm print. Skip the blue wave if you need the lowest price or a separate UK review pool.
Klarstein HTR10-WdwlS500wMtn
500 W, 2.27 A and the 80 by 60 cm rows agree, with 4.5 from 12, the strongest star line in this set.
Klarstein HTR10-WdwlS700wWave
The only large listing whose heat-output row stays at 700 W, at about £254.69.
Editorial
Peter F. is the editor for DIY & tools at productscompared.co.uk. Comparisons in this category are checked against amazon.co.uk listings, review evidence and public UK sources.
Guides on what to look for, how to use a product, and common mistakes.
Public UK sources named below. amazon.co.uk prices, stars and review counts on these four listings were taken from the listings read on 20 October 2026. Page updated October 2026.
This page contains affiliate links to amazon.co.uk (tag pcuk26-21). If you buy through them, we may earn a commission at no extra cost to you. Prices, stars and review counts are taken from those listings. We did not run a lab test.
