Hi I have just moved into a new house and have a myson apollo boiler. The thermostat on the boiler seems to have a hi/low setting. When set to low the radiators aren\\\'t very warm but when on high the radiators are too hot (as we have two small children). The boiler also fires for about 20 seconds on low and then switches off - which doesn\\\'t seem very efficient - when set to high it fires for a lot longer. Are there any other settings on the boiler or is it just the hi/low switch? or does anyone know where i could get a manual for the boiler? Any information would be appreciated. Many thanks