Support for your Oil Boiler

Most Viewed
General Advice & Videos
Troubleshooting
FAQs
System
Can I use artificially softened water in the heating circuit with my boiler?
Do you recommend treatment of the central heating water?
What is condensate and is it dangerous?
Is there anything I can do to help prevent my condensate trap from freezing on my boiler?
How often should I need to top up the pressure on the heating system?
Should we have a frost stat fitted to our boiler?
Combination boilers
How could mains water pressure affect my combi oil boiler?
Fuel
Should I turn my oil boiler off when my oil tank is being filled?
I recently ran out of oil, will this cause an issue to the system?
How do you bleed an oil burner?
Can condensing boilers be used on gas oil?
Thermostats & Controls
Should I use a programmer or time controllers with my oil boiler?
What are thermostatic radiator valves (TRVs)?
What does the boiler thermostat do?
Servicing
How often should a Grant oil boiler be serviced?
Why should you regularly service boilers?
General
Will I receive anything in writing when I have a new boiler installed?
Where can I find the serial number of my Grant Vortex boiler?
I've lost my boiler's manual - where can I find a new copy?
Are oil boilers going to be banned?
Manuals & Technical Info
Installation Manuals & User Guides
Vortex Burner Settings
Vortex Pro Range
Vortex Eco Range
Vortex Boiler House Range (red cased)
Flue Systems
Accessories
Brochures & Data Sheets
Knowledge Hub

Find an Installer

Search our network of heating engineers to find local installation and servicing companies in your area

Search

Home Heating Blog

Discover more about home heating solutions, care and support with our informative blogs

Read more

Couldn't find what you were looking for?

Alternatively you can speak to a member of our team - Subject to Operating Times

+44 (0)1380 736920 info@grantuk.com

Return to top