While you wait for answers, we may have found some information which could help you.
Click here for Pressure Hot Cold
converting to sealed system?
I have an Ideal ff380 boiler. The heating is not coming on with the timer?
safety relief valve?
rattling nosie in the ideal bolier??
where is the overheat button on an ideal elan2!!!!!?
Gas Jet Lights but goes off again after about a minute?