Hi all, I’m a homeowner with an old (>15 years) Redring central heating boiler. I’m trying to identify it so I can find out more info and determine what servicing it requires, if any. The boiler has a galvanised steel casing and is built into the fireplace. There is a separate pump to circulate water around the radiators. I also have a separate immersion so assume this isn’t a combi. I’d be grateful for any leads because Redring can’t help! Thanks.