OK. It could be a Stoves New Home EFA600H.
Here's a pic of the grill control panel - homepage.ntlworld.com/adam.fox57/MikeFox/EFa600h2.JPG
here's a link to Stove's support site
www.stoves.co.uk/customer-care/manuals/
There's no EFA series manuals there but there IS a phone number. They may be willing to email you a PDF. If they do, please consider starting a Mediafire or a Box or Dropbox account (free) and popping a copy there with unrestricted sharing and mentioning th elinnk in a few forums, with the full make/model number mentioned, to give Google searches something to bite on.
For some reason this site doesn't like some URLs. See below
May 2015