The best towel radiator heating elements, compared.
Top pick: Greened House 300W WiFi chrome Best value: Rica 300W PTC element – About £26.50 with 4.4 from 138 reviews, the largest count in the set, for a stated 300 W PTC rod on 1/2 inch BSP. Two stored reviews say the cut-out failed. Updated 16 October 2026.
A towel radiator heating element screws into the bottom of a heated towel rail and warms the fluid, so towels dry with the boiler off or a failed rod is replaced. Fit depends on wattage, thread, the listed IP rating for the bathroom zone, and the control you will use. Two stored reviews say a unit did not cut out. Thread, watts, IP and supply are in the [towel radiator heating element buying guide](/hub/heating/towel-radiator-heating-element/sub/towel-radiator-heating-element-buying-guide). Fixed output stays at the rated watts while it is on. Is the: the listing says the ceramic eases off near 65°C. A dual-fuel kit is the 400 W set, with a, a blanking plug and a stated 70°C cut-out.
A towel radiator heating element screws into the bottom of a heated towel rail and warms the fluid, so towels dry with the boiler off or a failed rod is replaced.
28 products checked · 54 hrs invested · +18,400 readers
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Personal buying guide
Question 1 of 2
What do you need the element to do?
The Greened House 300 W chrome WiFi element is about £60.00 with 4.7 from 45 reviews on the listing. The bullets give 1/2 inch BSP, a 310 mm rod, 220–240 V, IPX4, zones 2 and 3, a 30–70°C heater range, a 7-day app schedule, and a fused spur. The lead is printed as 110 mm. Reviewers describe an easy fit, a rubber seal, and schedules that cut all-day running, including one buyer who heats for about three hours on an economy rate. The same texts sit on the black 300 W listing, so the two counts are not two samples. Complaints in that pool include a missing manual, a weak WiFi complaint, an app that fought a second phone, and one leak. A reviewer also says there is no room sensor. It is the top pick here when you want a schedule and you accept app setup, not because a lab ranked it.
Pros
Cons
Best for: A 1/2 inch BSP rail you want on a phone schedule, with WiFi beside the bathroom and a spur already planned
Less suitable: A buyer who only needs a £26 basic rod, or whose spur is far from a 110 mm lead
Specifications
Common questions
Can I control it from my phone?
The listing says an app on iOS and Android can switch it, set 30–70°C, and store a 7-day schedule. Reviewers name Tuya, Smart Life, and Home Assistant. One review says the app did not match the video.
What thread and supply does it need?
The listing says 1/2 inch BSP, IPX4, zones 2 and 3, and a hard-wired fused spur. It says the element must not go at the top. The lead is printed as 110 mm.
Is the black 300 W a separate review set?
The black listing prints the same 4.7 from 45 and the same review texts as this chrome listing. Do not add the counts.
This is the black 300 W Greened House WiFi element at about £60.00. The technical lines match the chrome 300 W listing: 310 mm, 1/2 inch BSP, IPX4, zones 2 and 3, 30–70°C, a 7-day schedule, a fused spur, and a lead printed as 110 mm. Weight on this listing is 440 g. The star line is again 4.7 from 45, and the written reviews are the same texts as the chrome listing, including the missing manual, the Tuya and Home Assistant notes, the second-phone problem, and the leak. Treat that as one pool. Choose this ASIN for a black head. It is not a second independent top pick, and it does not add a room sensor or a longer lead.
Pros
Cons
Best for: The same schedule job as the chrome 300 W element, when the rail or the head should be black
Less suitable: Anyone counting 45 plus 45 reviews, or anyone who needs a long lead
Specifications
Common questions
Can I control it from my phone?
The listing says an app on iOS and Android can switch it, set 30–70°C, and store a 7-day schedule. Reviewers name Tuya, Smart Life, and Home Assistant. One review says the app did not match the video.
What thread and supply does it need?
The listing says 1/2 inch BSP, IPX4, zones 2 and 3, and a hard-wired fused spur. It says the element must not go at the top. The lead is printed as 110 mm.
How is this different from the chrome 300 W?
The listing colour is black and the weight is 440 g. Wattage, thread, IP line, price, and the review texts match the chrome 300 W listing.
Across 138 amazon.co.uk reviews at 4.4 out of 5, the Rica PC1K000015 is a 300 W PTC element at about £26.50 with a 1/2 inch BSP thread, a 250 mm rod, a 1 m lead, and a stated 3 amp fused spur. Reviewers who kept the old rail often say it was easy to fit and still heated when the new rod was shorter than the old one. The listing says the ceramic stones hold about 65°C by using less power after that point, and one buyer found that heat too hot to handle. Two other reviews say the cut-out did not work and the rail became boiling or dangerous, so the 65°C line is not confirmed by every stored review. The IP55 and zone 2 lines are the seller’s text. This is the best value in the set on price and review volume, not a lab result.
Pros
Cons
Best for: A like-for-like 300 W replacement on a 1/2 inch BSP rail if you already have a fused spur and you will watch the first heat-up
Less suitable: Anyone who needs a schedule, or who wants a proven cut-out after reading the boiling-rail reviews
Specifications
Common questions
Does it fit a standard UK towel rail?
The listing states a 1/2 inch BSP thread and a 250 mm element. It also prints rail size bands. It does not say every rail will accept it.
Does it switch itself off?
The listing says the ceramic element uses 300 W until about 65°C and then reduces power. Two stored reviews say a unit kept heating and did not cut out.
How is it powered?
The listing requires a 3 amp fused spur. It does not mention a 13 A plug or a timer.
The Greened House 400 W chrome WiFi element is about £65.00 with 4.3 from 17 reviews. The listing steps the rod to 380 mm and the power to 400 W, and it keeps 1/2 inch BSP, IPX4, zones 2 and 3, 30–70°C, a 7-day app schedule, a fused spur, and a 110 mm lead. UK reviews praise app control, a tidy look, and Smart Life automations. One buyer points out that it holds rail temperature, not room temperature. Another returned a unit that would not switch on after it was fitted. An Ireland review says the supply was live and the radiator stayed cold. Seventeen reviews is a smaller pool than the 300 W listing, and the price is £5 higher. Take 400 W only if the rail’s own size guide asks for it.
Pros
Cons
Best for: A larger rail whose guide points at about 400 W, if you also want the app
Less suitable: A small rail, or a buyer who can use the cheaper 300 W Rica rod
Specifications
Common questions
Can I control it from my phone?
The listing says an app on iOS and Android can switch it, set 30–70°C, and store a 7-day schedule. Reviewers name Tuya, Smart Life, and Home Assistant. One review says the app did not match the video.
What thread and supply does it need?
The listing says 1/2 inch BSP, IPX4, zones 2 and 3, and a hard-wired fused spur. It says the element must not go at the top. The lead is printed as 110 mm.
Will 400 W heat the room to a set temperature?
A reviewer says there is no external sensor. The element runs until the rail reaches the set temperature. The listing range is 30–70°C.
The black Greened House 400 W WiFi element is about £65.00 with 4.3 from 17 reviews. Length is 380 mm, thread is 1/2 inch BSP, and the listing repeats IPX4, zones 2 and 3, 30–70°C, a 7-day schedule, a fused spur, and a 110 mm lead. Weight here is 470 g. The texts praise app control and an easy Smart Life connection, and they note the missing room sensor. A return would not switch on once it was wired, and an Ireland review reports power without heat. The chrome 400 W listing carries a similar set and the same star line. Pick the black head for appearance. Do not expect a different control system or a longer flex than the chrome 400 W listing.
Pros
Cons
Best for: A black rail that needs the 400 W step and phone scheduling
Less suitable: A buyer who only wanted a colour change and would be better on the 300 W schedule model, or on the Rica rod
Specifications
Common questions
Can I control it from my phone?
The listing says an app on iOS and Android can switch it, set 30–70°C, and store a 7-day schedule. Reviewers name Tuya, Smart Life, and Home Assistant. One review says the app did not match the video.
What thread and supply does it need?
The listing says 1/2 inch BSP, IPX4, zones 2 and 3, and a hard-wired fused spur. It says the element must not go at the top. The lead is printed as 110 mm.
Is the black 400 W a different controller?
The bullets match the chrome 400 W listing: app, 7-day schedule, 30–70°C, IPX4, and a fused spur. The stated differences are colour and the 470 g weight.
The Kudos-Trading listing is about £36.99 with 4.2 from eight reviews and only three texts stored. Those three say it fitted, the heat was good, and one universal non-branded rail worked after a shop had refused a replacement. One buyer cut off most of a long cable. The title puts IPX4 and a string of wattages on the same line and then marks 250W, while the bullets speak of 150 W to 600 W. Brass, silver, and 39 × 3 × 3 cm are in the technical table. Thread, voltage, fuse, and timer are not stated. The review sample is too small to rank it above the Rica element, and the wattage line is too unclear to order it against a measured rail without checking the variant you actually receive.
Pros
Cons
Best for: A buyer who has checked the exact variant and thread, and who only needs a basic replacement
Less suitable: Anyone matching a known 300 W or 400 W rail, or anyone who needs a timer
Specifications
Common questions
Will it fit every towel rail?
The bullets say most standard towel rails. They do not state 1/2 inch BSP. Three reviews describe a successful fit, including a non-branded rail.
Does it have a timer?
The product page asks. The bullets do not say a timer is included.
Which wattage is this listing?
The title lists several wattages and ends in 250W. The bullets say between 150 W and 600 W. The technical table does not give watts.
The Manissa HE300WCHR is the lowest shelf price in this set at about £23.00. The listing is a 300 W chrome element, 1/2 inch BSP, about 380 mm long, with a 1 m lead, 240 V, a 3 amp fused spur, and a 2-year guarantee claim. Stars are 4.0 from five reviews. Only two review texts are stored. One says the goods arrived and were working. The other says the heater stopped after about an hour and was returned. That split is too small to treat the star line as a durability record. There is no timer in the bullets. IP55 and the zone 2 sentence are listing claims, not a test in this comparison.
Pros
Cons
Best for: A low spend on a stated 300 W, 1/2 inch BSP chrome rod when you can return it quickly if it fails
Less suitable: A buyer who wants a large review sample or a schedule
Specifications
Common questions
Will it fit any towel rail?
The listing gives 1/2 inch BSP and size bands for width and height. It does not say the element suits every rail.
Does it include a timer?
The page asks whether a timer is included. The bullets do not describe one.
What supply does it need?
The listing says a 3 amp fused spur, IP55, and zone 2. Those IP and zone lines are the seller’s text.
The Valdern listing at about £31.99 is the 400 W version of a dual-fuel kit: element, chrome T-piece, and blanking plug, with 1/2 inch BSP, a 350 mm rod, a 1200 mm cable, and a stated thermal cut-out at 70°C. Stars are 3.8 from 30 reviews, and nine texts are stored. Buyers who are happy describe a rail that got hot within about 45 minutes, including an upgrade from 150 W, and a fit without special tools. The same reviews include a unit dead after 33 days, a ceramic sheath that blew out of the casing within six months, and an adapter that did not meet existing pipework. There is no timer. IP64 and the CE and TUV lines are claims in the bullets. Use it when you need the T-piece hardware and you accept a mixed failure record.
Pros
Cons
Best for: A wet rail you want to run in summer, if you can isolate the valves and you want the T-piece in the box
Less suitable: A set-and-forget schedule, or a buyer who wants the stronger review record of the Rica element
Specifications
Common questions
Is this only the element?
The listing is a kit: the element, a chrome T-piece, and a blanking plug, for a dual-fuel rail.
Does it have a timer?
The page asks. The bullets do not include a timer. One reviewer says they must switch it off before the central heating comes on.
What thread does it use?
The listing says 1/2 inch BSP, 350 mm long on the 400 W size, and a 1200 mm cable.
We compared the eight amazon.co.uk listings in this set. The score beside each product is the listing star rating times 20, on a 0–100 scale, not a lab score. The top pick is the Greened House 300 W chrome WiFi element. Best value is the Rica 300 W PTC element, on shelf price and review volume. The black Greened House 300 W listing repeats the chrome review texts, so those 45 reviews are one pool. Weights follow thread and length, wattage, control, supply and listed IP, then price against that evidence.
Thread and length
25%Points for a stated 1/2 inch BSP thread and a stated insertion length. A listing that omits the thread does not score this block.
Wattage
20%A single stated wattage that you can match to the rail. A title that also prints a wide wattage range scores lower, because the variant is unclear.
Control
20%A stated timer, PTC behaviour, or app schedule, set against what reviewers actually describe, including a cut-out that did not trip.
Supply and listed IP
20%A fused spur, a stated fuse where the listing gives one, and the IP figure as printed. An IP line is a listing claim, not a test result.
Price and review volume
15%Shelf price in GBP against amazon.co.uk stars and review count. A shared review pool is not counted twice. The lowest price does not win on its own.
Map the element onto the rail before you compare the price. Thread, insertion length and wattage decide whether it fits and whether the heat is enough. Control decides whether you will remember to switch it off. Prices below are the shelf prices printed on these eight amazon.co.uk listings, not a live re-check. We did not run a lab test, and we do not treat an IP figure in a title as a verified rating.
A towel radiator heating element is a rod that screws into the bottom of a heated towel rail and warms the fluid. You use it so towels dry with the boiler off, or to replace a failed rod. Fixed output stays at the rated watts while it is on. In this set the Manissa HE300WCHR is the chrome 300 W example at about £23. PTC is the Rica PC1K000015: the listing says the ceramic eases off near 65°C. A dual-fuel kit is the Valdern 400 W set, with a T-piece, a blanking plug and a stated 70°C cut-out.
The Kudos-Trading title marks 250 W and the bullets say 150 W to 600 W. Match a known 300 W or 400 W rail to a listing that states one wattage, and check the variant you receive.
On a dual-fuel rail, close both valves and ease the air vent before electric mode. Do not run the boiler at the same time. The Valdern kit has no timer, so the overlap is easy to forget.
The black 300 W listing repeats the chrome 300 W texts and the same 4.7 from 45. That is one pool. The 400 W listings are a separate, smaller count of 17.
Match the thread before the star rating. Greened House, Rica, Manissa and Valdern state 1/2 inch BSP. The Kudos-Trading listing does not, and its title marks 250 W while the bullets say 150 W to 600 W. Order that variant only after you have checked the unit you will receive. Lengths on the other listings run from 250 mm on the Rica rod to 380 mm on the Manissa and the Greened House 400 W. Reviewers who kept an old rail say a shorter Rica rod still heated.
A fixed element needs a spur or a separate timer. The Manissa 300 W listing has no timer in the bullets. The Rica PTC listing says the ceramic eases off near 65°C and has no dial. Two stored reviews say a unit did not cut out, so that 65°C line is not confirmed by every report. Greened House WiFi lists an app, a 7-day schedule and 30–70°C on the heater. Reviewers name Tuya, Smart Life and Home Assistant. One review says there is no room sensor, so the control holds rail temperature.
Three typical situations, each with a recommendation from this comparison.
You will not remember to switch a basic rod off, and the rail is 1/2 inch BSP with a spur already planned. The Greened House 300 W chrome WiFi element is about £60, rated 4.7 from 45 reviews, with a 7-day app schedule. The lead is printed as 110 mm, and the black listing repeats the same texts.
Thread and watts match the old element, and a fused spur is already there. The Rica 300 W PTC element is about £26.50, rated 4.4 from 138 reviews, with 1/2 inch BSP and a 250 mm rod. Watch the first heat-up: two stored reviews say the cut-out did not work.
You want the rail warm with the boiler off, and you can isolate both valves. The Valdern 400 W kit is about £31.99, rated 3.8 from 30 reviews, and the box includes a T-piece and a blanking plug. There is no timer, so do not leave the boiler and the element on together.
The top pick is Rica 300W PTC element, with the highest score in this comparison (8.8 out of 10, from 138 amazon.co.uk reviews). For a like-for-like 300 W replacement with the largest review count, the best value is the Rica PTC element at about £26.50, rated 4.4 from 138 reviews. Two stored reviews say the cut-out failed. Take 400 W only if the rail’s own guide asks for it.
Rica 300W PTC element
About £26.50 with 4.4 from 138 reviews, the largest count in the set, for a stated 300 W PTC rod on 1/2 inch BSP. Two stored reviews say the cut-out failed.
Editorial
Products Compared publishes British-English buying guides based on amazon.co.uk listings and public UK sources. We do not run a lab and we do not invent test scores.
Guides on what to look for, how to use a product, and common mistakes.
Public UK sources used for this comparison, plus the amazon.co.uk listings for these eight ASINs. Page updated 16 October 2026. Prices are the shelf figures on those listings, not a live re-check.
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 come from the amazon.co.uk listings in this comparison. We did not run a lab test.
