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Best underfloor heating actuator

Updated: October 2026

The best underfloor heating actuator in this amazon.co.uk set is a conditional answer. You already have a 230 V, normally closed, M30 manifold, and you want a shortlist from these eleven listings. If the centre is 24 V, if the old head has four cores, or if the nut is not M30 x 1.5, leave this page. The [underfloor heating actuator comparison](/hub/heating/underfloor-heating-actuator) holds every row, including the ones this shortlist skips. Products Compared updated this page in October 2026 from those listings and the public TA230 datasheet. We did not lab-test the heads. A purchase through the links can earn a commission at no extra cost to you.

The best underfloor heating actuator in this amazon.co.uk set is a conditional answer. You already have a 230 V, normally closed, M30 manifold, and you want a shortlist from these eleven listings.

Our top picks

Wengart Wengart WG2208 Red Head 230 V

Best overall

Wengart Wengart WG2208 Red Head 230 V
7.2/10about £9.99
View offer
Wengart Wengart WG2208 Blue Head 230 V

Rank 2

Wengart Wengart WG2208 Blue Head 230 V
8.3/10about £10.99
View offer
RIMEX RIMEX ZL-2033 230 V Normally Closed Actuator

Alternative

RIMEX RIMEX ZL-2033 230 V Normally Closed Actuator
7.9/10about £12.95
View offer
On this page
  1. 1.Best only if your manifold is 230 V, normally closed, and M30
  2. 2.Listings that state the specification and have a review history
  3. 3.The named TA230, and the Heatmiser listing that is not one
  4. 4.What to skip for a whole manifold

Best only if your manifold is 230 V, normally closed, and M30

The wiring centre must send 230 V to the zone terminals, the old head must be normally closed, and the nut must be M30 x 1.5. A 24 V centre needs a 24 V head, and none of these rows is a clear 24 V model. That choice sits on the 24V or 230V underfloor heating actuator page. Fail position is the other fork, on the normally closed or normally open page. Thread is just as hard a stop. An OpenHAB discussion asked whether a Heatmiser M30 TA230 could replace Uponor M28 x 1.5 heads. They kept the Uponor heads, because thread and pin geometry both matter. For a 230 V normally closed M30 loop, the top pick is the Wengart WG2208 blue head at £10.99, with 4.5 from 48. The best value is the red-head WG2208 at £9.99. If any of the three facts is still missing, use the buying guide before you order.

Listings that state the specification and have a review history

The RIMEX ZL-2033 at £12.95 states 230 V, normally closed, M30 x 1.5, a 4 mm stroke, 100 N, about three minutes, 1.8 W, IP54, and a 0.5 m cable. The star line is 4.4 from 168. Several reviews describe failure within one to three years, and one buyer returned eight heads because they did not fit. It suits you if you want 4 mm and 100 N in print. It is a poor choice for filling every port in one order. The two WG2208 colours share a model code and are different listings. The red head is £9.99, 4.6 from 23, with stroke and IP rating absent. The blue head is £10.99, 4.5 from 48, and it adds IP54 and a 3–5 minute cycle. Stroke in millimetres is unstated. The Wengart WG20 is £9.99 and 4.4 from 94. One review says a unit marked NC behaved as normally open. Use that listing for one loop you can watch while it is unpowered.
Wengart Wengart WG2208 Red Head 230 V

Testsieger

Wengart Wengart WG2208 Red Head 230 V
7.2/10about £9.99
View offer

The named TA230, and the Heatmiser listing that is not one

The LavaTap listing at £17.99 is the row that says TA230. It states 230 V, normally closed, M30 x 1.5, IP54, 2 W, a 1 m cable, and about 120–180 seconds, and it names Heatmiser UH4 and UH8. The star line is 5.0 from 2. Two reviews do not outweigh 4.5 from 48 or 4.4 from 168. The Heatmiser title at £9.71, with 4.6 from 65, is not that specification. Voltage, thread, and normally closed or open are absent, and the model field reads THERMALACTUATOR. The TA230 datasheet is 230 V AC, 2 W, IP54, M30 x 1.5, stroke 3.5 mm plus or minus 0.5 mm, and 127 g. Those figures stay on the named actuator. Specialist shelves the same week ran from about £10.79 to £19.05. The £9.71 row is only a bargain if the unstated voltage happens to be yours.

What to skip for a whole manifold

The Voltrique row is £7.69 with no star line. It claims 230 V, 3 mm, 110 N, and 3–5 minutes, and it states neither normally closed nor the thread. The printed weight is 20 g. The unbranded listing at £9.49 prints 38 g and has no star line. The unbranded listing at £8.46 is 3.6 from 4, and the only captured text says they do not work. The VANCOCO five-pack and seven-pack are both £49.99 and both show 3.9 from 25, with overlapping texts, so that is one sample. The five-pack also prints Low Voltage beside a 230 V title. The lower unit price on seven heads does not create a second set of proof.

Common questions

Which listing is the sensible 230 V normally closed choice on M30?
The Wengart WG2208 blue head at £10.99, with 4.5 from 48, IP54, and a 3–5 minute cycle. Stroke in millimetres is not stated. Choose the RIMEX head when you need the printed 4 mm stroke.
Why is the cheapest head not the best value?
The Voltrique listing is £7.69, with no review line, no fail position, and no thread. Best value here is the red WG2208 at £9.99, 4.6 from 23, with stroke and IP still unstated.
Is the £9.71 Heatmiser listing the TA230?
The page does not say so. Voltage, thread, and fail position are absent, and the model field is THERMALACTUATOR. The listing that states TA230 is the LavaTap row at £17.99.
Does 5.0 from two reviews beat 4.4 from 168?
No. Two LavaTap deliveries do not outweigh 4.4 from 168, and that larger sample still includes early-failure notes.
Are the two Wengart WG2208 colours the same head?
They share the model code and they are separate listings. The red head does not state stroke or IP rating. The blue head states IP54 and a 3–5 minute cycle. Match the page you ordered.
Should you buy a five-pack or a seven-pack for the unit price?
Only after one head has fitted your rail. Both packs are £49.99 and share 3.9 from 25. Adding the star lines double-counts the same comments.
Who is the RIMEX head a poor choice for?
Anyone buying a full manifold in one go, anyone whose last nut would not start, and anyone who needs more than the stated 0.5 m cable. Try one loop first.

Related pages

What an underfloor heating actuator does

Underfloor heating actuators

Read 24 V or 230 V on the underfloor heating actuator

Underfloor heating actuator buying guide for the UK

How to replace an underfloor heating actuator head

Normally closed or open underfloor heating actuator

Sources

Public UK sources and the amazon.co.uk listings in this comparison. Listings captured 15 October 2026. Page updated October 2026.

  1. Approved Document L, Volume 1 (2021, 2023 amendments) (retrieved 15 October 2026)
  2. Approved Document P (2013) (retrieved 15 October 2026)
  3. BEAMA underfloor heating controls guide (retrieved 15 October 2026)
  4. Heatmiser TA230 actuator datasheet (retrieved 15 October 2026)
  5. The Underfloor Heating Company: install an actuator (retrieved 15 October 2026)
  6. Warmup wiring centre manual (retrieved 15 October 2026)
  7. Grant UFLEX UH8 installation guide (retrieved 15 October 2026)
  8. Consumer Rights Act 2015 (retrieved 15 October 2026)