hi
the previous owner of this house told us something along the lines of the boiler heats the main rads on one curcuit and the towel rads + ufh on another curcuit.
what im noticing is that the towel rads + ufh are on more often than the main rads and that they are on when the boiler display is not showing a rad (either on or flashing) or a flame. i know they are on because i can hear water running through them. what IS showing though is a circle with a triangle in it which the book says means 'internal pump is running'.
does that sound normal to you? what does the internal pump do thats different to the main rads pump? we do have a separate thermostat for the towel rads. i assumed the internal pump would just be doing something with the water inside the combi?
thanks
the previous owner of this house told us something along the lines of the boiler heats the main rads on one curcuit and the towel rads + ufh on another curcuit.
what im noticing is that the towel rads + ufh are on more often than the main rads and that they are on when the boiler display is not showing a rad (either on or flashing) or a flame. i know they are on because i can hear water running through them. what IS showing though is a circle with a triangle in it which the book says means 'internal pump is running'.
does that sound normal to you? what does the internal pump do thats different to the main rads pump? we do have a separate thermostat for the towel rads. i assumed the internal pump would just be doing something with the water inside the combi?
thanks