Boiler brands rated Worcester oil boilers
British manufacturer Worcester first manufactured domestic oil-fired boilers in 1962. It employs more than 2,000 people in Worcester and Derbyshire. Worcester is now part of the multi-national Bosch Group. It's branding declares that Worcester are 'dedicated to heating comfort'.
Worcester oil boiler range
Worcester has 30 oil-fired boilers in its current range to suit different types of home, including internal and external installation sites.
The Greenstar Heatslave combination boilers are available as floor-standing internal or external units in three heat output ranges for smaller homes.
There are three floor-standing Greenstar Camray ranges of heat-only boilers for installation in a kitchen, garage or external site; three heat outputs are available to supply a wide range of house sizes. The Greenstar Utility range is suitable for a utility room or garage. The Greenstar Danesmoor wall-mounted range is more suitable for space-pressed smaller houses but there is also a floor-standing version available. All of the Worcester oil fired heat only boilers can be used alongside Worcester solar installations.
The Greenstar Camray range of system boilers can be installed in a kitchen, garage or external site; three heat outputs are available to supply a wide range of house sizes and like the heat-only boilers they can be used alongside the Worcester Greenskies solar water heating range.
For details of products from the current Worcester range see our boilers review.
Worcester oil boilers - the Which? verdict
Each year Which? surveys thousands of boiler owners about the reliability of their brand of boiler. Nearly a third of Which? members in our survey who have an oil boiler own a Worcester model.
Only logged in Which? members can view full scores in our boiler reliability table below. If you're not already a member, you can sign up to try out full access for one month, for just £1.
|Brand data for Worcester oil condensing boilers|
|Which? Survey results||Score|
|Which? Customer Score|
|Ownership among Which? members with oil boilers|
|Most common faults experienced by owners|
|Problem with the burner|
|Boiler keeps switching itself off|
|Boiler completely broke down|
|Water leaking from the boiler|
|Boiler noisy in operation|
|Water leaking from the condensate pipe|
|Problem with built-in controls|
Average customer score is 70% and average reliability score is 72%, based on responses from 331 Which? connect panel members. Scores are based on boilers bought since April 2005. Brand reliability sample size (118). Customer score sample size (120). The most common faults requiring repair of Worcester boilers installed since April 2005; sample size (51).
It is interesting to note that the biggest problem recorded for Worcester boilers is actually a problem with the installation of the boiler - not the boiler itself.
Worcester warranties and installation
Worcester boilers are supplied through trade installers, not sold directly by Worcester. Worcester Accredited Installers are not employed by Worcester but are accredited by Worcester-Bosch Group to install their products. Many accredited installers specialise in Worcester products and most can offer extended guarantees.
If you have any problems with your new appliance during the manufacturer’s guarantee period you should contact your installer first to ensure it is an appliance fault. Bosch Thermotechnology Ltd (the Worcester parent company) will repair any components that are faulty or defective for free.
The guarantee must be registered within 30 days of installation.
Unusually Worcester offers a 10-year guarantee on the heat exchangers in its boilers, providing that the boiler’s installation meets strict criteria on the sizing and positioning of the boiler - basically following best-practice guidelines. Otherwise, it offers a two-year parts and labour warranty.
Worcester servicing and repairs
Worcester claims to have 300 service engineers across the UK and Ireland.
Worcester offers it's own Service Plan for boilers that are out of guarantee. This covers up to £1,500 of approved boiler repairs every year, carried out by Worcester boiler engineers. It also includes a yearly service to ensure your boiler is running efficiently and safely.
Worcester service plan
0844 892 2332
Worcester contact details
You can contact Worcester at the following address:
Bosch Thermotechnology Ltd
Cotswold Way, Warndon
Worcester, WR4 9SW
Or through the Worcester website.
Worcester customer service
0844 892 3000
Worcester technical queries
0844 892 3366