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Best underfloor heating thermostat

Updated: October 2026

You already know whether the floor is an electric mat or warm-water pipes, and you want a name from this amazon.co.uk shelf rather than another round-up of Heatmiser and Warmup. The best underfloor heating thermostat in this stored set is a judgement with a condition, not a laboratory crown. Prices and stars below are the files saved on 15 October 2026. The full rows are on the [underfloor heating thermostat comparison](/hub/thermostats/underfloor-heating-thermostat). If you have not yet checked load, neutral, and probe, do that on the [buying guide](/hub/thermostats/underfloor-heating-thermostat/sub/underfloor-heating-thermostat-buying-guide) before you treat any pick as settled. A qualifying purchase through our links can earn a commission at no extra cost to you.

You already know whether the floor is an electric mat or warm-water pipes, and you want a name from this amazon.co.uk shelf rather than another round-up of Heatmiser and Warmup.

Our top picks

meross Meross MTS205 WiFi thermostat

Best overall

meross Meross MTS205 WiFi thermostat
9.0/10about £49.99
View offer
KETOTEK KETOTEK M9.716 programmable thermostat

Alternative

KETOTEK KETOTEK M9.716 programmable thermostat
8.8/10about £25.99
View offer
KETOTEK KETOTEK manual 16 A floor thermostat

Preis-Tipp

KETOTEK KETOTEK manual 16 A floor thermostat
8.6/10about £14.99
View offer
On this page
  1. 1.What best means in this set
  2. 2.Top pick for an electric mat
  3. 3.Best value when you do not want an app
  4. 4.Rows to leave on the shelf

What best means in this set

Round-ups elsewhere lead with a Heatmiser neoStat or a Warmup 4iE. A Heatmiser neoStat-e seen in search sat near £89.99, and it is not one of these eleven rows. Inside this set, a top pick has to match the heat source and rest on a review file that belongs to that ASIN. The KTF0155A at £44.99 and the KTF0163A at £49.99 show the same 4.3 from 1,067 and the same opening review names. Adding those counts would invent a second crowd. The Meross rows state electric floor heating and say they are not for water. Only the KETOTEK M6 bullet claims an on/off actuator for water pipes. The highest star line that is actually one product is the MTS205.

Top pick for an electric mat

For an electric mat, where you will use an app and you can live with an unstated amp line, the top pick is the Meross MTS205, ASIN B0FHZ1JDXM, at £49.99. The stored rating is 4.5 from 605 reviews, though several of the first fifty reviews are not from the United Kingdom. UK reviewers replaced a failing Warmup 3iE, kept the probe already under the tile, and found the phone schedule easier than the old wall programmer. The listing gives up to eight periods a day, Alexa, Google Assistant, and SmartThings without a hub, on 2.4 GHz, with live and neutral required, plus an open-window pause, a child lock, and a setpoint of 5 to 35 °C. The 5 W line is the stat’s own consumption, not the mat. Do not read it as a 16 A controller. The bullet excludes water-based heating. One fitter changed a 35 mm box for 47 mm. A line about saving up to 30 percent is a claim, not a measured result. If you want Matter, the MTS215 at £50.99 is 4.4 from 87 reviews. Pay the extra pound for the protocol, not because the stars are better.
meross Meross MTS205 WiFi thermostat

Testsieger

meross Meross MTS205 WiFi thermostat
9.0/10about £49.99
View offer

Best value when you do not want an app

If you will not open an app, the best value is the KETOTEK manual dial, ASIN B07P5KX1FQ, at £14.99, rated 4.3 from 831, the largest review file that is not shared with a second ASIN. It states 16 A, IP20, live and neutral, a 5 to 40 °C dial, and a 3 m floor probe as a high limit. It will not run a weekly pattern. The supplied screws are called too large against 3.5 mm UK screws, and the attribute block says Wi-Fi on a knob. Ignore that tick. The M9.716 at £25.99, rated 4.4 from 270, adds 5+2, 6+1, and 7+0 plus a manual hold, with a menu that runs to 90 °C, short factory wires, and a deep box. The M6 at £24.99, rated 4.2 from 271, is the same idea with a weaker star line and the only actuator claim. The DEWIN at £10.79 is 4.1 from 16, and the only stored UK review describes fan control, not a floor zone. How those schedules behave is the how to set an underfloor heating thermostat page.

Rows to leave on the shelf

The Denash at £18.37 is titled as a smart 16 A controller and rated 3.7 from four reviews. A UK review says it does not connect, and the box line lists the thermostat only. The GLOGLOW at £13.58 states 16 A and 3,600 W, with a floor-limit range of 25 to 55 °C, and it has no customer-review line. The protocol field says Wi-Fi while the title says non-programmable. The KTF0155A and the KTF0163A are different bodies. The black KTF0163A, at £49.99, is the one with a 2.5 m NTC 10 kΩ probe and a stated neutral. Neither wins a 1,067-reviews contest, because there is one sample. Water-pipe buyers should not land on either Meross row. The M6 mentions an actuator, and it is still a wall stat, not a wiring centre. The electric or water page keeps that fork.

Common questions

Which thermostat is the top pick for an electric mat in this set?
The Meross MTS205 at £49.99, stored at 4.5 from 605 reviews. It is electric floor heating only, with an app schedule, Alexa, and no hub, and UK reviewers have used it to replace a Warmup 3iE while keeping the old probe. The heating current is not stated, and 5 W is not the mat load. It leads on stars and on a review file that belongs to this ASIN, not on a 16 A claim.
Which is the best value if I only need on, off, and a dial?
The KETOTEK dial at £14.99, rated 4.3 from 831, with 16 A stated and a 3 m probe. It is the strongest price against a large unshared review file, provided you do not want a timer. The DEWIN at £10.79 has too little UK floor-heating evidence to take that place. The M9.716 at £25.99 is the step up when you want a weekly programme without Wi-Fi.
Is the Meross with 4.5 stars the one to buy for water pipes?
No. The MTS205 bullet says electric floor heating, not water-based. The MTS215 says the same. Stars do not change the heat source. In this set the KETOTEK M6 is the listing that mentions an on/off valve actuator, at £24.99, and it is still not a manifold wiring centre.
Why are two KETOTEK Wi-Fi stats not two piles of 1,067 reviews?
The KTF0155A and the KTF0163A carry the same 4.3 from 1,067 line and the same opening review names and dates. That is one sample copied across two files. You can still prefer the KTF0163A because it prints a 10 kΩ probe and a neutral. You cannot add the counts and call it 2,134 opinions.
Is the £18.37 smart stat a bargain?
The Denash price is low and the evidence is thin: 3.7 from four reviews, three of them one line. One UK review says it does not connect, against a smart title and a Wi-Fi attribute. A child lock on the rear panel does not repair that clash. Leave it unless you have read that review and still want a push-button LED body.
Does Matter on the MTS215 make it the winner?
Matter is a reason to choose the MTS215 at £50.99 if you want Apple Home, Home Assistant, or SmartThings over Matter. It is not a reason to call it the top pick. The stored rating is 4.4 from 87, below the MTS205, and the heating load is still unstated. One review says native HomeKit has gone.

Related pages

Underfloor heating thermostat

Checks before you buy an underfloor heating thermostat

Electric or water: which underfloor heating thermostat

Underfloor heating floor sensor ohms and surface limits

How to set an underfloor heating thermostat schedule

Sources

Public UK sources for notifiable electrical work, floor-surface limits, and electric floor heating. Listings are the amazon.co.uk captures for these eleven ASINs on 15 October 2026, not a live reload. Prices on amazon.co.uk move.

  1. Approved Document P (retrieved 15 October 2026)
  2. GOV.UK competent person schemes (retrieved 15 October 2026)
  3. Bath and North East Somerset, electrical safety (retrieved 15 October 2026)
  4. IET Wiring Matters, section 753 (retrieved 15 October 2026)
  5. NHBC underfloor heating (retrieved 15 October 2026)
  6. Warmup Pro floor finishes (retrieved 15 October 2026)
  7. Drayton Wiser underfloor heating note (retrieved 15 October 2026)
  8. Heatmiser neoStat-e V2 (retrieved 15 October 2026)