Every product we recommend is carefully researched, fact checked and tested where possible. If you buy from a link, we may earn a small commission. Learn more.

best radiator valve

The UK's bestThermostatic Radiator Valves2022 Review

What To Look For in a Thermostatic Radiator Valves

One of the most important things to consider with radiator valves is size compatibility. Most UK houses have a standard 15mm pipe connection. However, some radiators require 22, 10, or 8mm valves. Be sure to check which size valve you need before buying anything. 

There are a few more practical considerations to bear in mind as well.  For increased longevity, you might want to avoid plastic components. These may become slightly more brittle over time. The best thermostatic radiator valves are made from solid brass. This durable material won’t rust and offers good value for money.

The easiest thermostatic radiator valves to fit are bidirectional. This means it doesn’t matter on which side of the radiator you put the flow pipe and the lockshield. If you get unidirectional valves, you must install them the right way round.

After this, which radiator valve you choose will depend on your decor. Chrome-coloured valves are typically the cheapest option and are suitable for most homes. However, their silver appearance may not suit all bathrooms.

Anthracite radiator valves work well in kitchens and bathrooms with grey tones and slate finishes. Choose white valves if you want a traditional look and have a white radiator. These blend in well, particularly in bathrooms, but can look a little dated in a contemporary-style home. 

I’ve chosen the West Radiators Thermostatic Radiator Valve Set as my top recommendation. This valve set has a standard 15 mm connection, making it suitable for most UK homes. It’s made from brass with a chrome finish, giving it a tidy and contemporary look.

Below, you can find reviews for several of the best thermostatic radiator valves.

What Are The UK's Best Thermostatic Radiator Valves?

IMAGE RECOMMENDED PRODUCTSPRODUCT FEATURES
best-thermostatic-radiator-valve West Radiators Thermostatic Radiator Valve Set - 15mm
  • Best thermostatic radiator valves
  • Attractive chrome finish
  • Standard 15mm fitting
best-thermostatic-radiator-valve Drayton TRV4 Thermostatic Radiator Valve
  • Durable construction
  • Clean white and chrome finish
  • Good value for money
best-thermostatic-radiator-valve HB Signature Thermostatic TRV Brass Anthracite Radiator Valves
  • Standard 15mm fitting
  • Stylish design
  • Durable construction
best-thermostatic-radiator-valve iBathUK White Thermostatic Towel Radiator Valves
  • Standard 15mm fitting
  • Chrome and gloss white finish
  • Good value for money
best-thermostatic-radiator-valve Myson Thermostatic Radiator Valve Replacement Head Only
  • Low-cost replacement TRV head
  • Easy to fit in less than a few minutes
  • Excellent value

Read Our Thermostatic Radiator Valve Reviews

B00HCL4FYW
5055689802846
Best thermostatic radiator valves, Attractive chrome finish, Standard 15mm fitting,

West Radiators Thermostatic Radiator Valve Set - 15mm

best-thermostatic-radiator-valve West Radiators Thermostatic Radiator Valve Set - 15mm
FEATURES RATING PRICE
FEATURES
  • Best thermostatic radiator valves
  • Attractive chrome finish
  • Standard 15mm fitting
RATING
98
PRICE
Check Price on Amazon

West Radiators Thermostatic Radiator Valve Set - 15mm Review

Once you’ve forked out for a decent radiator, there’s nothing less satisfying than having to bookend it with unattractive valves. Fortunately, this West Radiators Thermostatic Radiator Valve Set provides high-quality, chrome-plated valves that pair nicely with even designer radiators.

They have a standard 15 mm (1/2”) coupling that will fit the majority of UK radiators and are easy to fit. They might not be the cheapest option on the market, but there are many ways in which their cost can be justified.

Primarily, the build quality is high, with the valves feeling heavy and well finished. The nuts have been rounded off, to give more of a polished appearance, and the thermostatic valve is neatly designed.

They’re made from brass and finished in chrome, to make them versatile to use with a range of different radiators. When fitted, the valves sit flush, and don’t stick out in front of the radiator as can often happen. As a result, they don’t encroach on the space, and in bathrooms with limited floor area, this can be particularly beneficial.

Care does need to be taken when fitting the valves, so as not to damage or scratch the casings – due to the rounded-off nuts, a spanner can slip if it isn’t properly secured.

All in all, whether you’ve got a new designer radiator or are just looking to improve the appearance of your existing model, these are some of the best thermostatic radiator valves – giving a polished, quality finish. They may be more on the expensive side, but they still offer value for money.

Pros

  • Standard 15 mm (1/2") couplings that fit on the majority of UK radiators
  • Solid-feeling finish with a good weight to them
  • Fit flush against the radiator and wall meaning they don't stick out into the room
  • High-quality finish which suits designer radiators without bringing the appearance down
  • Suitable for fitting on towel rails as well as standard radiators

Cons

  • Care should be taken when fitting to make sure that scratches don't occur when tightening the nuts
B00NHL26CY
5016254107247
Durable construction, Clean white and chrome finish, Good value for money,

Drayton TRV4 Thermostatic Radiator Valve

best-thermostatic-radiator-valve Drayton TRV4 Thermostatic Radiator Valve
FEATURES RATING PRICE
FEATURES
  • Durable construction
  • Clean white and chrome finish
  • Good value for money
RATING
96
PRICE
Check Price on Amazon

Drayton TRV4 Thermostatic Radiator Valve Review

With a good reputation for durability and performance, the Drayton TRV4 Thermostatic Radiator Valve is well regarded amongst both plumbers and consumers.

It comes with both a TRV and lockshield valve, and they can be positioned either on the flow or return of the radiator making them easy to install – even for a DIY novice. The instructions are also simple to follow, making the process straightforward.

Whilst their white-plastic caps may not appeal to everyone’s aesthetic sensibilities, the quality of the valves themselves is hard to fault. They have a typical 15 mm (1/2”) coupling to fit standard UK radiators, a tight seal, and are rated in ‘class 1’ for efficiency by the European Valve Manufacturers Association.

Drayton has a good reputation as a company, so there is also reassurance in buying their valves as they have proven themselves to be reliable over the years. These are some of the best thermostatic radiator valves on the market if you’re after quality – they offer good value for money and won’t see you needing to replace them for a long time.

The thermostatic valve also works well to control the temperature and help save on energy consumption in the house.

Pros

  • High-quality finish that complements the appearance of most radiators
  • TRV4 valves have been on sale for many years with customers able to vouch for their durability
  • Can be fitted either side of the radiator, on the flow or return, making installation easier for a DIY novice
  • Easy-to-follow instructions mean there is no confusion during installation
  • Thermostat works well to control temperature

Cons

  • White plastic caps may not appeal to everyone depending on décor and appearance of radiator
B075LH4VT5
5056094676015
Standard 15mm fitting, Stylish design, Durable construction,

HB Signature Thermostatic TRV Brass Anthracite Radiator Valves

best-thermostatic-radiator-valve HB Signature Thermostatic TRV Brass Anthracite Radiator Valves
FEATURES RATING PRICE
FEATURES
  • Standard 15mm fitting
  • Stylish design
  • Durable construction
RATING
95
PRICE
Check Price on Amazon

HB Signature Thermostatic TRV Brass Anthracite Radiator Valves Review

If you have a radiator with an anthracite coating, or any black radiator for that matter, these HB Signature TRV Anthracite Radiator Valves will neatly finish off the look.

Instead of plumping for contrasting chrome or white plastic valves, using matching black units can help create a better sense of cohesion.

The TRV and lockshield come with standard 15 mm (1/2”) couplings that will fit on the majority of UK radiators. They combine both chrome and anthracite to create a contemporary-looking valve set.

Underneath the chrome covering, the valves have a body constructed from brass to create a solid base. They have a good weight to them, and look the part alongside anthracite radiators. However, it is worth noting that there is still quite a lot of chrome on show, which may suit some décor better than others.

Also, unlike some of the valves on this list, it is important to make sure that the flow and return are connected to the correct sides when fitting these valves. Therefore, installation may take a little more thought than with other bidirectional models.

Nevertheless, these are some of the best thermostatic radiator valves to go for if you have an anthracite, graphite, or black-tone radiator – they blend in well, and help create a modern, cohesive look that stylishly finishes off the radiator.

Pros

  • Anthracite covers create a stylish, cohesive look when combined with anthracite/black radiators
  • A modern and contemporary finish with the combination of chrome and anthracite
  • Brass body gives good weight and quality feel to valves
  • Standard 15 mm (1/2") couplings that fit on the majority of UK radiators

Cons

  • Still quite a lot of chrome on show which may not suit some décor
  • Flow and return valve need to be fitted to the correct sides of the radiator - not bidirectional
B00GZPCAV6
5055826029907
Standard 15mm fitting, Chrome and gloss white finish, Good value for money,

iBathUK White Thermostatic Towel Radiator Valves

best-thermostatic-radiator-valve iBathUK White Thermostatic Towel Radiator Valves
FEATURES RATING PRICE
FEATURES
  • Standard 15mm fitting
  • Chrome and gloss white finish
  • Good value for money
RATING
92
PRICE
Check Price on Amazon

iBathUK White Thermostatic Towel Radiator Valves Review

Buying expensive radiator valves can add up, especially if you need several for different rooms in the house. Fortunately, these iBathUK White Thermostatic Towel Radiator Valves are a relatively inexpensive option – they offer reasonable quality without breaking the bank.

Suitable for fitting onto most standard UK radiators, they have a 15 mm (1/2”) coupling and are easy to fit. Whilst they describe themselves as “towel radiator” valves, there’s no reason they can’t be installed on standard radiators as well.

They’re streamlined and modern in appearance, with a clean gloss-white finish. The core is made from solid brass, with a chrome coating on top to complement the white components.

As a result, they blend in with most white and chrome radiators without looking old fashioned or chunky.

When connected to a towel rail, the thermostatic valve makes it easy to heat the radiator when towels need to dry, without wasting money unnecessarily by having it on the maximum temperature all the time.

Although the plastic element makes these slightly lower quality than some of the entirely-metal valves, they are still some of the best thermostatic radiator valves to buy on a budget. Plus, if you have white radiators, they will blend in well.

Pros

  • Relatively good value option when comparing price with quality
  • Combination of white and chrome creates a neat, clean finish
  • Suitable for use with both towel radiators and standard radiators
  • Comes with standard 15 mm (1/2") couplings that fit onto the majority of UK radiators

Cons

  • Plastic components may be slightly less durable than entirely-metal counterparts
B00HV2H6FW
5013131300234
Low-cost replacement TRV head, Easy to fit in less than a few minutes, Excellent value,

Myson Thermostatic Radiator Valve Replacement Head Only

best-thermostatic-radiator-valve Myson Thermostatic Radiator Valve Replacement Head Only
FEATURES RATING PRICE
FEATURES
  • Low-cost replacement TRV head
  • Easy to fit in less than a few minutes
  • Excellent value
RATING
86
PRICE
Check Price on Amazon

Myson Thermostatic Radiator Valve Replacement Head Only Review

For anyone who already has a Myson radiator, this Myson Standard Thermostatic Radiator Valve Replacement Head offers a like-for-like replacement if something has stopped working.

It’s not unusual for thermostatic valves to get knocked and break, and if this is the case, this replacement head can be attached without having to undo any of the valve’s body. This is a good value option if you don’t need to buy and fit an entirely new valve – it’s a useful way to save both time and money.

Unfortunately, valve head fittings aren’t universal, so you shouldn’t expect to be able to install this head if the valve on your radiator is a different brand. There are some cases where it might fit, but there is also a lot of variation between different models – so nothing is guaranteed.

Installation is very straightforward, and can be done in a matter of minutes with minimal tools required. Also, due to the design of the head it’s easy to turn and adjust – it has an ergonomic shape that is easy to grip, and none of it is covered by a casing (which is how some other models are designed).

As a result, it is easy to see all of the settings at any time, and change to the most appropriate one.

Pros

  • Convenient as can be fitted onto the body of existing valve without removing the whole thing
  • Quick installation in a couple of minutes
  • Ergonomic head is easy to turn and temperature markings are visible at all times
  • Good value option as only have to buy valve head and not entirely new unit
  • Should fit most valves with a 32 mm fitting

Cons

  • Difficult to know which valves it will fit and which is won't - only confirmed to definitely fit Myson valves
  • May be considered aesthetically old fashioned compared to more modern, contemporary valve heads

How to Choose The Best Thermostatic Radiator Valve

Valves are an integral part of any central heating system, so why not get some that can help make the radiators more useful and economical to run. Operating the same way as manual valves, TRVs can be used to turn individual radiators on and off. However, they are also able to detect the temperature of the room and self-regulate. 

Requiring less human input than standard valves, thermostatic valves have a range of benefits. If you’re looking at purchasing a TRV but you’re not sure where to start, the following tips should help you make the right decision. 

Benefits of Using a Thermostatic Radiator Valve (TRV)

TRVs have a range of benefits, the most useful of which are detailed below:

  • TRVs can be used to control the heat in each individual room. Each radiator can be turned on or off individually, and set at a certain temperature, so you can keep each room comfortable without wasting electricity. This can be particularly useful in warmer rooms, such as south-facing ones, where the radiators may not always need to be turned up as high as in other areas.
  • Unlike regular radiator valves, TRVs can monitor the temperature in the room. This means they can adjust the flow of water into the radiator to maintain your ideal temperature. Once the room reaches a certain temperature, the radiator will receive less hot water. If the room drops below this temperature, the radiator will receive more hot water.
  • These types of valves can also help prevent frost damage. Many models will have a frost mode, which means they can be set to ‘off’, yet still come on if the temperature in the room drops below a certain level (for example, 7°C).
  • They can also help prevent mould by allowing you to keep temperatures higher in cold, damp-prone rooms (such as bathrooms) without wasting heat through the whole house.

TRVs are also very affordable and available in a range of designs. They can be purchased to suit all types of radiator, so they are definitely a useful addition to have.

Design and Finish

There are plenty of different valves on the market, to suit a range of aesthetics. Unless you’re working to a very tight budget, and are less worried about appearances, you’ll be able to find thermostatic valves that have the same finish as your radiator.

Thermostatic valves are available in all different colours, from chrome to black, brass to white. Here on this page predominantly chrome-coloured valves are featured, because they tend to be the most popular and versatile. However, if you have a certain ‘look’ in mind, you’re bound to find a matching model online – you just might have to pay a bit more for it.

Chrome radiator valves can be some of the most contemporary-looking. White valves blend in well with white radiators, and can offer a more traditional look. They can look a little dated, so it’s important to consider the style carefully. White valves often have plastic elements which some people may prefer to avoid. If you have a darker radiator, like one with an anthracite finish, there are also valves available to match.

Ease of Installation

Fitting a TRV is generally fast and simple. Some people still choose to have them fitted professionally, but for the most part there is enough information online for anyone wanting to install a TRV themselves.

Fitting a ‘bidirectional’ valve is slightly less complicated than a unidirectional model, because it doesn’t matter which side of the radiator the TRV and lockshield are positioned. If the valves are unidirectional, the TRV valve will need to be fitted onto the flow pipe, and the lockshield onto the return pipe.

The flow pipe refers to the pipe through which water flows into the radiator, and the return pipe refers to the pipe through which water leaves the radiator. 

Most modern TRVs are bidirectional; however, it’s still good practise to fit the TRV to the flow pipe and the lockshield to the return pipe.

Thermostatic Radiator Valve FAQs

How does a thermostatic radiator valve work? 

Thermostatic radiator valves (TRVs) self-regulate, so they adjust the flow of water that goes into the radiator depending on 1) the temperature they are set to, and 2) the temperature of the room. The valve head goes on top of the valve body, and expands or contracts when the temperature in the room changes. 

As the valve head changes, a pin is adjusted in the valve body so that the valve opens or closes. When the head expands, the valve closes so the radiator receives less hot water. As the room cools, the head contracts which opens the valve body to receive more hot water into the radiator. More hot water means the radiator will become warmer. 

Can I put thermostatic radiator valves on all radiators?

While thermostatic radiator valves can be installed on all radiators, there are some cases where it’s best not to install a TRV.

For example, it’s also best to avoid putting TRVs in bathroom radiators. This is because the heat produced from having a hot shower or bath may confuse the thermostat. Instead of maintaining the correct temperature, the TRV will cut out before intended. This might make it harder to clear damp air and steam.

It’s also not necessary to put a TRV in the room where your principle thermostat is located. Doing so can confuse the thermostat, and in some cases can cause it to overcompensate – pushing out more heat than necessary via the central heating.

How warm should my home be?

Getting the temperature right for your home can be tricky at times. Ideally, your home should be no warmer than 20°C during the day when you are at home. 

When you’re away from home, an ideal temperature for winter is between 12°C and 19°C. Any colder than 12°C, and your pipes may be at risk of freezing. Often, information regarding whether or not to leave your heating on when away (and at what temperature) is detailed in your home insurance policy. It’s worth taking a look to avoid doing anything that may void the insurance.

At night time, your thermostat should be set to between 17°C and 19°C for a comfortable sleep.

How useful was this post?

Click on a star to rate it!

As you found this post useful...

Follow us on social media!

Related Articles
Scroll to Top