Thermostatic Radiator Valves (TRVs) | A Buyer's Guide

QUICK GUIDE SUMMARY

What are thermostatic radiator valves? We explain how they work and review 32 TRVs

Thermostatic Radiator Valves, or TRVs, are way of turning the temperature on your radiators up and down. TRVs allow for room temperatures to be individually controlled. As such they are a cost effective way of improving the efficiency of your heating system and lowering fuel bills. Prices for TRVs vary, commonly from £10 to £30, although designer products are £100-£200. We have researched the majority of good quality TRV’s available to buy in the UK and presented them here in product groups according to budget and style.

Overview of Thermostatic Radiator Valves

There are three types of TRV:

Angled, Straight and Corner. Angled is the most common.

We have found that the majority of TRVs

fall into one of four prices groups: Standard, Premium, Chrome and Designer

Warranty periods

vary considerably between 1 and 5 years.

Plumbers and heating engineers

can install TRVs. They are not mandatory with a new boiler but highly recommended.

HOW TO USE THIS GUIDE

Using this Guide: use this guide to find the most suitable TRVs for your budget

TRVs by type

TRVs by budget and warranty period

Get advice on installation

Types of Thermostatic Radiator Valve

Angled TRVs

Most standard radiators will use an angled TRV irrespective of whether pipework comes up from the floor or out of the wall.

Straight TRVs

Where pipework comes out of the floor and usually only with designer radiators and towel rails.

Corner TRVs

Sometimes a preferred option over Angled TRVs where compatible with the radiator.

8mm/10mm/15mm sizes

Most TRVs will be fitted to 15mm pipe, which is the standard size pipework for a heating system. 8mm and 10mm are used for ‘microbore’ pipe systems.

Top or bottom of the radiator?

If the valve is currently at the top, then it’ll go in the top, otherwise it almost always goes at the bottom. Both with bill angled valves

Lock Shields

Most standard radiators have two outlets. A TRV is fitted on one outlet and a ‘lock shield’ on the other

Prices and Warranty Periods

We have grouped TRVs together based on price as follows: Standard TRVs, Premium TRVs, Chrome TRVs and Designer TRVs. Prices shown are based on angled TRVs (prices are given as a guide and may vary according to supplier). Find your budget group and then find your preferred TRV.

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Standard TRVs
Manufacturer Drayton Drayton Honeywell Honeywell Myson Peglar Peglar Danfos
Model RT212 RT313 Valencia VTL120 VT15EG 2TRV15C Terrier 11 Bulldog 2 RAS-C2
 
Price £8.50 £13.00 £14.00 £10.00 £16.50 £13.50 £11.00 £12.00
Warranty 2 years 2 years 1 year 1 year 2 years 5 years 5 years 1 year
Settings No 1-6 No 1-6 No 1-6 No 1-6 Roman numbers I-VI No 1-6 No 1-6 No 1-6
Frost Protection Yes Yes Yes Yes Yes Yes Yes Yes
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Premium TRVs
Manufacturer Drayton Honeywell Danfoss Siemens Peglar Peglar Aletcnic Intatec
Model TRV 4 White and Chrome Valencia VTL200 RAS D2 White TRV B4452/4 Terrier 3 Ecocal I-Therm
 
Price £22.00 £16.00 £30.00 £30.00 £28.00 £15.50 £26.00 £18.00
Warranty 2 years 1 year 1 year 5 years 1 year 5 years 2 years 2 years
Settings No 1-6 No 1-6 No 1-6 No 1-6 No 1-5 No 1-6 Roman Numbers I-VI No 1-6
Frost Protection Yes Yes Yes Yes Yes Yes Yes Yes
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Chrome TRVs
Manufacturer Drayton Honeywell Myson Myson Peglar Reina Danfoss Inatec
Model TRV 4 Chrome Valencia VTL20015A-C 2TRV15DEC Petite Terrier 11 Chrome Modal RAS-D2 Chrome I Therm
 
Price £34.00 £30.00 £37.50 £24.00 £21.00 £24.00 £38.00 £25.00
Warranty 2 years 1 year 2 years 2 years 5 years 1 year 1 year 2 years
Settings No 1-6 No 1-6 Roman numbers I-VI Roman numbers I-VI No 1-6 No 1-6 No 1-6 No 1-6
Frost Protection Yes Yes Yes Yes Yes Yes Yes Yes
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Designer TRVs
Manufacturer Peglar The Radiator Company The Radiator Company The Radiator Company The Radiator Company Beehive Beehive Beehive
Model Terrier Decor Ideal TRV Chrome Pistol Ideal White Ideal Black Black White Chrome
 
Price £35.00 £9300 £128.00 £111.00 £116.00 £198.00 £198.00 £198.00
Warranty 5 years 1 year 1 year 1 year 1 year 1 years 5 year 1 year
Settings No 1-6 No 1-6 - No 1-6 No 1-6 No 1-6 No 1-6 No 1-6
Frost Protection Yes Yes Yes Yes Yes Yes Yes Yes

Installation Tips

Arranging installation

Thermostatic radiator valves can be installed by a heating engineer or a plumber, i.e. the fitter does not have to be Gas Safe registered to work on the radiators and radiator valves.

It is however very cost effective to fit new TRVs when a new boiler is installed, since changing the valves can be done whilst the system is drained down. It is also a nice job for the apprentice whilst the lead engineer installs the boiler.

Are they mandatory with a new boiler installation?

For new build properties, it is an energy saving requirement that the new heating system meets a minimum standard of controllability, namely the inclusion of a thermostat, programmer and TRVs.

For existing properties, heating companies are urged to encourage the installation of TRVs, but it is not mandatory. It does however make good sense.

What would you like to do next?

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