Frequently Asked Questions

All FAQs

Question
Can I use artificially softened water in the heating circuit with my boiler?
Can a Greenstar Oil boiler be used with the existing conventional flue?
Should I turn my oil boiler off when my oil tank is being filled?
What can cause an oil boilers burner to lockout?
Should I have my heating system treated or cleansed?
How often should I need to top up the pressure in the heating system?
The heating system is constantly losing pressure what should I do?
What is pluming?
Will I receive anything in writing when I have a new boiler installed?
What sort of shower can I run off my combi boiler?
Why is the hot water produced by my combi boiler sometimes cloudy?
What are timers, programmers and programmable room thermostats?
How efficient are air source heat pumps?
How could mains water pressure affect my combi boiler?
Can heat pumps heat swimming pools?
Do you recommend treatment of the central heating water?
How does part L of the Building Regulations affect my boiler installation?
What do the error symbols mean on my boiler?
What is ErP?
What is Energy Labelling?
How will ErP affect me and my business?
How will ErP benefit me and my business?
Under ErP, what about systems that contain different products?
How do controls affect ErP?
As an installer, am I required to print the efficiency label? Or am I required to make a label and send it out?
Can you advise where to find and learn more on how to calculate and provide an ErP label?
What if I install a system with a programmer or other non-Worcester components? Will I still be able to use the Worcester ErP online tool?
Why is it necessary when we already have an appliance label and a home Energy Performance Certificate both of which are based on the well understood A-G scale?
Do I need a boiler, solar panels or heat pumps to heat my home?
Can I use plastic pipework on oil fired sealed central heating systems?
My new Greenstar oil boiler's flue overheat thermostat keeps tripping out
What is a thermostatic radiator valve (TRV)?
Why might I want to programme hot water times with my combi boiler?
What size oil supply pipe does an oil boiler need?
Which programmers are compatible with my gas boiler?
Can I put flue elbows straight on top of the boiler?
Do I need a standoff kit to pipe up the back of your boilers?
Why is the boiler blowing fuses?
Why is the pump running constantly on a Greenstar CDi boiler?
Where can I find the FD (serial) number on a Greenstar boiler?
Can I fit your controls to an external oil boiler?
Can I run boiler flues outside?
Does an external condensate pipe have to be insulated?
Can I use third party controls with your boilers?
Why is the controller on a combi boiler twin channel?
Do Worcester room controls have a one hour boost button?
Do I remove the link wire in the boiler when fitting a Worcester control?
Can I use Worcester controls on multiple zones?
Can I use Worcester controls with a system boiler?
I have a discontinued DT20RF. Can I still get a replacement if anything goes wrong?
How does a heat pump work?
What is CoP?
With a heat pump do I still need a boiler?
What heat delivery method gives the best results with a heat pump?
Can I keep my existing radiators with a heat pump?
Where can air conditioning units be used?
Can an air conditioning unit be used to cool the home as well as providing heat?
What refrigerant is used in Greensource air to water heat pumps?
What is the lower limit operating temperature of a Worcester air to water heat pump?
What are the key maintenance requirements for Greensource Air to Water Heat Pumps?
How should the air to water heat pump unit be sited to ensure the airflow and access it needs?
What size of cable should be used to connect the air to water heat pump to the mains electricity supply?
How cost effective are solar thermal panels?
Is there enough sunshine in the UK for solar thermal?
What is the best way to calculate how many solar thermal panels I need?
Is planning permission required for solar thermal panels?
Is there any funding available for solar thermal?
I am installing a GB162 boiler what size flue do I need to use?
Is the GB162 flue system suitable to be ran externally?
Do I have to use the GB162 pump group or can I fit my own pump on the system?
Does the Heat Interface Unit require a permanent live?
Does the Heat Interface Unit require a flue to be fitted?
Can I use a secondary return with the Greenspring water heater?
I am installing a GB162 can I used external 240vac controls to operate the boiler?
Can I use a BMS system with a 0 - 10 volt signal to control the GB162?
Can I fit your solar compatible unvented cylinder and fit solar panels at a later date?
Why has the Greenstore cylinder inlet control group changed colour? It was red but now it’s blue.
Can I use Worcester unvented cylinders on a vented system?
Can I use a secondary return with Worcester cylinders?
How many immersion heaters do you have in your cylinders?
What are the kW outputs of the coils inside Worcester cylinders?
Have you got more information on how to wire controls to your range of Greenstar gas boilers?
When will I receive my order?
What is your return policy?
I have received the wrong product, or it arrived defective or damaged
I have ordered the wrong item, wrong size, or simply changed my mind
Can I exchange my items for new ones?
How will I be booked on to a training course?
How do I re-route a condensate pipe to reduce the external run?
My boiler is producing a 'gurgling' sound what could be the cause?
Is an external air break required when a condensate pipe is terminated into a rainwater downspout?
How do I know that my condensate pipe is blocked?
Top tips commissioning a Greenstar Danesmoor oil boiler
How do I give my engineers access?
How much is the EasyControl app?
How many devices can I connect to the EasyControl?
How many Smart TRVs can I connect to my heating system?
I don’t have a Worcester Bosch boiler. Can I still install a Bosch EasyControl?
What happens with the data from my EasyControl?
Can I turn the home presence detection feature off and use my set timings instead?
Can I program my hot water as well as my heating?
I already have a Wave control. Can I upgrade to an EasyControl?
Which rooms should I install the Smart TRV’s in?
How to bleed a radiator
What is the FastTrack installation service?
What happens if the customer doesn’t meet the FastTrack criteria?
How are installers selected to complete FastTrack installation jobs?
How do I set my availability?
What installation dates are shown to the customer?
Who takes payment from the customer?
Does the price include VAT?
What does maximum price mean?
Who pays for the products?
Where do I purchase the products?
How and where do I register the guarantee?
What is FastTrack?
How do I qualify for FastTrack?
What do I get from FastTrack?
What is included in the FastTrack service?
How long is the guarantee on an FastTrack installation?
How do I pay for my FastTrack installation?
Why have you started FastTrack?
Do I have to pay to upgrade the guarantee to 10 years?
Guarantee vs Warranty
How many colours is the EasyControl available in?
If I remove EasyControl from the wall (e.g. for renovation work) how long will its settings be kept?
We’ve had a power cut. Does that affect EasyControl?
The thermostat updates automatically. Can I turn this off?
Do I have to subscribe to a service to be able to use the EasyControl?
I'm moving house and want to take my EasyControl with me. Can I install it in a new property?
How do I log out and create a personalised Bosch ID account?
How do I reset my EasyControl password?
What are the advantages and disadvantages of the different types of heat pumps?
For how long will my device get security updates?
The MyWorcester App has now been retired and is no longer available, please download our new app.