It could be a number of reasons. If it's still 'firing up' when you turn on the taps, it sounds like there could be a problem with the pump. If the pump is malfunctioning, the water will still heat a small amount of water, but then that has no way to get around the system efficiently.
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Thank you! Yes, it does fire up and the first bout of water is very hot, then it seems to go cold but if I then reduce the flow it stays warm and is fairly stable. It will eventually go cold but I'm assuming that's when the boiler stops firing due to the low flow.
I've also noticed that if I have the temperature on high on the shower, I have to reduce the flow much further to get warm water (just a trickle) whereas if I turn the temperature down, I can run it on a higher flow and achieve the same temperature.
Yes
A boiler is primarily used for heating. Water is heated and forced through pipes to heating receptacles called radiators. Giant boilers are also used for electricity. Water is heated to turn giant turbines that produce electricity.
yes
A Worcester Combi Boiler is a gas powered boiler that heats water that pumps into radiators to warm the house. It also gives you hot water whenever you want it.
Yeah. sure, why not?
If there is no drain valve at the radiator you can drain the system at the drain valve on the boiler
As the pumped fluid carrying heat form the boiler to the radiators.
yes it will handle the heat as long as your boiler is started with copper
no
Depends on how many sections of the radiator and the height and width
The most common reason for a boiler to breakdown is due to loss of pressure. Loss of pressure may have been gradual and you may have heard water sloshing around the radiators for a week or two, or found radiators would not stay bled, after bleeding them.
Through cast Iron radiators and copper tubing and schedule 40 black steel piping