The best pipe trace heating cables, compared.
Top pick: 10 m pipe heating cable with plug Best value: heninhill 4 m pipe heating cable with thermostat – Lowest shelf price, £29.99, among cables with a stated thermostat, stated watts, at least 100 ratings and at least 4 m of heated length. Voltage is not stated. Updated October 2026.
A frozen boiler condensate pipe, or a short water pipe left in the open, is the usual reason to look at pipe trace heating. The cable is fixed on the outside of the pipe, under insulation, and a thermostat should decide when it runs. UK mains are 230 V with a BS 1363 plug. A title that says self-regulating does not prove the cable can be overlapped. Trace heating is not a [copper pipe](/hub/rods-and-pipes/copper-pipe), and it does not replace a proper condensate route. Pipe trace heating is an electric cable fixed outside a pipe, under insulation, so the water in that pipe does not freeze. UK buyers use it on a boiler condensate pipe, a short exposed water pipe, an outdoor tap, or a caravan connection. Guidance, drawing on BS 6798:2014, still says to terminate condensate internally where you can. If the pipe must go outside, it should be at least 30 mm inside diameter and insulated.
A frozen boiler condensate pipe, or a short water pipe left in the open, is the usual reason to look at pipe trace heating.
36 products checked · 58 hrs invested · +18,600 readers
Swipe for more
1-2 of 10
Personal buying guide
Question 1 of 2
How long is the exposed pipe?
This 10 m listing says it has a plug and claims IP68, at £45.79, and the star line is 5.0 from 1 with no review text in the raw file. Watts, voltage and a thermostat temperature are not stated. The title says self-adjusting and names PEX, PVC hoses and metal pipes. A rise of 70°F in 2 minutes and protection to −100°F are printed as claims, not as measured results. One rating, and a plug whose standard is not stated, is not evidence that a UK pipe will stay above freezing. You cannot tell from this capture whether the plug is BS 1363.
Pros
Cons
Best for: Only a length enquiry after the seller has confirmed voltage, watts and a UK plug in writing
Less suitable: Any pipe you need protected this week, especially plastic, while the supply is unstated
Specifications
Common questions
Does the listing confirm a UK plug?
No. The title says the cable has a plug. It does not say BS 1363, and it does not state a voltage.
Which pipes are named?
The listing names PEX, PVC hoses and metal pipes.
How many written reviews were captured?
The star line is 5.0 from 1. The raw file has no review text, so there is nothing further to summarise.
The Kadimendium 10 m cable is the listing in this set whose title states a UK plug, at £49.99, with an IP68 claim and an indicator light on what it calls an explosion-proof plug. Two review bodies, against a 4.6 from 13 line, say it was easy to fit, worked once on the pipe, and was good value for the length. They also say the cable arrives coiled, holds that shape, and needs cable ties because it will not lie on the pipe by itself. Voltage, watts and a thermostat temperature are not stated, so the plug is the clear fact and the output is not. The title’s self-adjustment line does not give an on or off point. A rise of 70°F in 2 minutes remains a listing claim, not a measurement in this file.
Pros
Cons
Best for: A long PEX, PVC or metal run where you want a stated UK plug and you will tie the cable down
Less suitable: A short condensate pipe, or any job that needs a stated watts-per-metre figure and a 230 V line on the listing
Specifications
Common questions
Does the listing state a UK plug?
Yes. The title includes UK-Plug. It also claims IP68. It does not state the voltage or a thermostat temperature.
Which pipes are named?
The listing names PEX, PVC hoses and metal pipes, and the title also mentions roof snow and gutter freeze.
What did the captured reviews say?
Two reviews are in the file, against a 4.6 from 13 line. They call it easy to fit and good value for the length, and say it needs cable ties because it holds its coil.
The Spacnana listing is a 10 m cable at £36.11, with 220V printed in the size field, no watts figure, and self-regulating in the title. Three review bodies sit against a 4.6 from 5 line. One says it heats quickly and that current drops as the heat reaches 65°C, and another calls it good value while expecting the pipes not to freeze. The same small set says the box had no instructions, and that the cable is stiff and difficult to strip for a joint. A finished frost lead is not sold as something you strip and joint, and there is no thermostat switch point in the capture. Ten metres at this price only helps if the supply printed on the size field matches the socket you have.
Pros
Cons
Best for: A long run where you already know this cable’s terminations and you have checked 220V against your supply
Less suitable: A first condensate-pipe job, or anyone who needs a printed thermostat point and a fitting sheet in the box
Specifications
Common questions
What voltage does the listing state?
The size field says 220V. A UK plug standard is not stated.
Does it include a thermostat?
A switch temperature is not stated. The title says self-regulating. One reviewer said the box had no instructions.
How long is it?
The listing states 10 metres. A watts figure is not given. It claims the cable can reach 65°C in 2 minutes.
The 5 m FreezeTec kit is stated at 12 W/m, 60 W and 230 V, with the same built-in thermostat claim, at £66.49. It shares the 4.5 from 48 review text and the same image URL as the 3 m kit. That pool includes praise for a condensate pipe that stopped freezing, use on a boat so an outdoor gas regulator stopped freezing, and one report of a unit that drew no current in an ice bucket. Five metres is the length to choose when the discharge is longer than the 3 m kit can cover. The listing does not print switch points or a UK plug standard in this file. At £9 more than the 3 m kit, the extra two metres are the difference, not a separate test result.
Pros
Cons
Best for: A condensate or valve run closer to 5 m than to 3 m, on a stated 230 V supply, with lagging over the cable
Less suitable: A pipe of about 3 m, where the shorter kit covers the run for £57.49, or a gutter
Specifications
Common questions
What is the stated length and output?
5 m, 12 W/m, and 60 W in the title, at 230 V, 50/60 Hz, with a built-in thermostat.
Does this capture show a UK plug?
No. This raw file states 230 V and does not name BS 1363.
How should the star rating be read?
The listing line is 4.5 from 48, and the review text is the same pool as the 3 m kit, including condensate-pipe praise and one unit that did not draw current.
The Elektra FreezeTec 3 m kit is stated at 12 W/m, 36 W and 230 V, with a built-in thermostat, at £57.49, and the title names a freezing condensate pipe on a condensing boiler. The 4.5 from 48 line is shared with the 5 m listing. Reviewers in that pool describe it stopping a condensate pipe freezing, call the flex easy to fit, and one notes it gets warm when the temperature drops below 2°C. A 2017 review reports no current draw with the thermostat in an ice bucket at about −3°C, so a dead unit is in the record. Switch points and a BS 1363 plug are not printed in this capture. Several reviews were written before a hard frost and do not confirm protection. Three metres at 12 W/m matches a short external discharge more closely than the 5 m kit does.
Pros
Cons
Best for: A short external boiler condensate pipe of about 3 m, where you want a stated 230 V kit and you will lag the pipe
Less suitable: A 10 m water main, a gutter, or a buyer who needs the on and off temperatures printed in this captured listing
Specifications
Common questions
What output and supply does the listing state?
12 W/m and 36 W in the title, at 230 V, 50/60 Hz. A built-in thermostat is stated. The on and off temperatures are not in this captured file.
Is it sold for a boiler condensate pipe?
Yes. The title names a freezing condensate pipe and a condenser boiler. The body also names pipes and valves.
Are the 48 reviews only for the 3 m kit?
The captured text matches the 5 m listing, including one report of a unit that drew no current in an ice bucket. Treat 4.5 from 48 as a shared pool.
This 4 m heninhill cable uses the same stated 25 W/m at 10°C and the same 5°C on and 10°C off thermostat as the 2 m listing, at £29.99. Reviewers in the shared 4.3 from 180 pool say it warms when the air is close to freezing and has kept an outside pipe or a condenser-boiler run usable, including a central-heating vent once the pipe was foiled and lagged. The cable is stiff, and the plug lead is short enough that people added an extension because the heated section did not reach. Four metres leaves more heated cable on the pipe than the 2 m version after that lead is used up. Voltage is still not stated, so the thermostat claim is not a confirmed 230 V UK plug. Some buyers had fitted it and were still waiting for a hard frost.
Pros
Cons
Best for: An outside pipe of a few metres where the socket is close, and you will foil and lag the run
Less suitable: A job that needs 230 V printed on the listing, or a gutter longer than 4 m
Specifications
Common questions
Does the 4 m cable include a thermostat?
The listing says it turns on below 5°C and off above 10°C. It does not state the voltage.
Is it described as outdoor-safe?
The listing claims resistance to moisture and harsh weather. It does not give an IP rating.
Are the 180 reviews only for this length?
No. The captured review text matches the 2 m and 6 m listings, so 4.3 from 180 is a shared pool.
The 6 m heninhill cable is listed at 25 W/m at 10°C, with the same on-below-5°C and off-above-10°C thermostat, at £39.99. The title adds plants and gutters as well as pipes. The 4.3 from 180 reviews are the same shared text as the 2 m and 4 m listings, so they are not a separate test of this length. Reviewers describe a short plug lead, a stiff cable, and a warm pipe after foil and foam. The listing asks whether you can cut it shorter and does not answer. Six metres helps only if that heated length can sit on the pipe or gutter, and the voltage is still not stated.
Pros
Cons
Best for: A longer outside pipe or a short gutter that can take most of 6 m, with foil, lagging and a nearby socket
Less suitable: A 2–3 m condensate pipe if you need to cut off the spare, or a supply you cannot confirm as 230 V
Specifications
Common questions
Can this 6 m cable be cut shorter?
The listing asks the question and does not answer it. Treat cutting as not stated.
What temperature does the listing give?
It states 25 W/m at 10°C, on below 5°C and off above 10°C. It does not state a surface temperature or a voltage.
Does it name gutters?
Yes. The title names pipes, plants and gutters. Plastic and metal pipes are both named in the description.
The heninhill 2 m cable is listed at 25 W/m at 10°C, with a thermostat that switches on below 5°C and off above 10°C, and the shelf price is £25.99. The 4.3 from 180 line is a shared pool with the 4 m and 6 m listings. Those reviews describe an outside pipe or a condenser-boiler run staying usable in a cold spell once the pipe is foiled and lagged. The same texts call the plug lead ridiculously short, so buyers used an extension, and they call the cable stiff to wrap on a short pipe. Voltage and the plug standard are not in the technical block. On a 2 m heated length, that short cold lead is a large share of what you paid for.
Pros
Cons
Best for: A short outside pipe when the socket is already beside it and you will foil and lag the run
Less suitable: A long condensate drop, or any run where the cold lead has to cross a wall before the heated section starts
Specifications
Common questions
Can it be used on metal pipes?
The listing says it is for plastic and metal pipes, including inlets, drains and sewers.
Does it include a thermostat?
Yes. The listing says it turns on below 5°C and off above 10°C. Voltage and plug standard are not stated.
What do reviewers repeat?
The 4.3 from 180 line is shared with the 4 m and 6 m listings. Repeated points are a short plug lead and a stiff cable, plus a warm pipe once it is foiled and lagged.
Across 7 amazon.co.uk reviews at 2.4 stars, this 4 m silicone cable is stated at 160 W on AC 200 V, and the thermostat is not in the box. Reviewers who wrapped it on 22 mm copper called the sheath flexible, then said it was not regulated and kept getting hotter. More than one report describes melted insulation and a melted pipe, including water pouring out after a plastic pipe failed. One short review says it is acceptable only if you add a thermostat yourself. The listing does not call the cable self-regulating. At £18.82 the length looks cheap, and those melt reports are why it does not belong on a plastic pipe you leave plugged in.
Pros
Cons
Best for: A watched test on a non-plastic pipe where a separate controller is already fitted and you can see the temperature
Less suitable: Plastic water pipe, a condensate discharge, or any run left plugged in through a frost
Specifications
Common questions
Does this cable include a thermostat?
No. The listing tells you to use a controller you supply yourself. The stated supply is AC 200 V.
What do UK reviews say about heat?
Reviewers say it is not regulated, keeps getting hotter, and melted insulation and pipe. The star line is 2.4 from 7.
Which pipes does the listing name?
The listing says it is for plastic and metal pipes, including inlet, drain and sewer pipes.
The Oumefar listing is a 1 m silicone cable stated at 40 W on AC 220 V, and the box does not include a thermostat. At £10.39 it is the cheapest row in this set, with a 5 mm by 8 mm cross-section and a claimed maximum of 70°C. The title calls it self-regulating and PTC, but the captured amazon.co.uk page has no star line and no review text, so this file has no buyer account of a pipe held above freezing. You would have to add your own controller. A stated 220 V supply is not a stated 230 V UK plug. Forty watts on a single metre is a high load for a short plastic run if the cable stays on.
Pros
Cons
Best for: A short fitting where you already own a separate thermostat and you have checked the supply against a UK socket
Less suitable: A boiler condensate pipe, a plastic pipe left on overnight, or a socket that needs a stated 230 V plug
Specifications
Common questions
Does this 1 m cable include a thermostat?
No. The listing says it can be used with a thermostat, which means you supply the controller. The stated supply is AC 220 V, not 230 V.
How long is the heated section?
The listing states 1 m, with a 5 mm by 8 mm cross-section and a 40 W output.
Is there a UK star rating?
The captured listing has no customer-review line and no review text.
Ten amazon.co.uk listings were scored on 15 October 2026. Stars are damped by review count (35), review volume is 15, UK supply clarity is 35, and field evidence minus faults is 15. Price sets the best-value badge and does not change the score. No cable was laboratory tested.
Amazon stars, damped by review count
35%Star points are (rating / 5) × 35, then multiplied by a sample factor: 0.90 from 50 to 199 ratings, 0.70 from 10 to 49, 0.45 from 2 to 9, 0.20 for a single rating, and 0 when no star line was captured.
Review volume
15%100 to 199 ratings score 13, 30 to 99 score 8, 10 to 29 score 5, 5 to 9 score 3, one rating scores 1, and none scores 0. A shared review pool is scored once from the published count.
UK supply clarity
35%Stated 230 V scores 12, a stated 200 V or 220 V scores 4, and a missing voltage scores 0. Thermostat, stated watts, heated length and a stated UK plug add the rest of this 35-point band.
Field evidence, minus faults
15%Points follow whether reviewers describe a pipe staying usable, then come off for a melted pipe, a dead unit, a short cold lead, a missing instruction sheet, or no review text at all.
Start with the pipe you can see, not the longest cable in the search results. Measure the exposed run, keep that figure separate from the cold lead, and check whether the listing states 230 V, a BS 1363 plug, a thermostat and watts per metre. The ten rows on this page are the amazon.co.uk listings kept on 15 October 2026. Prices run from £10.39 to £66.49. A cable is the last step after the condensate pipe is the right diameter and route.
Pipe trace heating is an electric cable fixed outside a pipe, under insulation, so the water in that pipe does not freeze. UK buyers use it on a boiler condensate pipe, a short exposed water pipe, an outdoor tap, or a caravan connection. It is not a replacement for a sound condensate route. HHIC guidance, drawing on BS 6798:2014, still says to terminate condensate internally where you can. If the pipe must go outside, it should be at least 30 mm inside diameter and insulated.
Heated length is not the whole cable in the box. Reviewers of the heninhill cables call the plug lead ridiculously short, so a 2 m heated section can be used up before the pipe is covered. Measure the exposed run, then see what is left after the lead reaches the pipe.
UK mains are 230 V with a BS 1363 plug. In this set only Elektra states 230 V. Oumefar is AC 220 V, the 4 m tape is AC 200 V, Spacnana’s size field says 220V, and heninhill states neither. A Schuko lead is a buying problem, not a footnote.
HHIC guidance, drawing on BS 6798:2014, still prefers an internal termination. An external pipe should be at least 30 mm inside diameter and insulated. Trace heating sits on that pipe. It does not replace it. If the boiler locks out again after a warm thaw, call Gas Safe.
Heated length is the first check, and it is not the cable in the box. The cold lead from the plug to the heated section does nothing for the pipe. Reviewers of the heninhill cables call that plug lead ridiculously short, so a 2 m heated section can be used up before the pipe is covered. A short condensate tail does not need a 10 m title. Measure the exposed run, then pick 3 m, 4 m, 5 m or 6 m if that length can sit on the pipe.
A pipe thermostat belongs under the lagging, not in warm room air. Elektra’s own page states on at +3°C and off at +10°C. The amazon.co.uk capture states a built-in thermostat and does not print those points. heninhill states on below 5°C and off above 10°C. On the Oumefar 1 m cable and the 4 m 160 W tape, the thermostat is not in the box. Output has to match the title.
Three typical situations, each with a recommendation from this comparison.
The heating dies in a frost and the discharge is already the right size and route. You want a stated 230 V kit of about 3 m, then lagging over the cable. The Elektra FreezeTec 3 m kit states 12 W/m, 36 W and 230 V, with a built-in thermostat, at £57.49.
The socket is already beside an exposed run of about 4 m, and you will foil and lag the pipe. The heninhill 4 m cable states 25 W/m at 10°C and a thermostat that switches on below 5°C and off above 10°C, at £29.99. The voltage is not printed.
A caravan, boat or long outdoor pipe needs the cold lead and the socket checked before the title length. The Kadimendium 10 m cable is the row whose title states a UK plug, at £49.99. Voltage, watts and a thermostat temperature are not stated.
The top pick is heninhill 4 m pipe heating cable with thermostat, with the highest score in this comparison (8.1 out of 10, from 180 amazon.co.uk reviews). The best value is the heninhill 4 m cable at £29.99, the lowest shelf price among cables with a stated thermostat, stated watts, at least 100 ratings and at least 4 m of heated length. Its voltage is not stated. The 4.5 from 48 and the 4.3 from 180 are shared family pools. No cable in this set was laboratory tested, and a cable does not replace a proper condensate route.
heninhill 4 m pipe heating cable with thermostat
Lowest shelf price, £29.99, among cables with a stated thermostat, stated watts, at least 100 ratings and at least 4 m of heated length. Voltage is not stated.
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 and the amazon.co.uk listings in the research digest, checked on 15 October 2026. Shelf prices can change.
This page contains affiliate links to amazon.co.uk. If you buy through them, we may earn a commission at no extra cost to you. Prices, stars and review counts are from the UK listings checked on 15 October 2026. We did not laboratory-test these cables.
