The boiler is on; the pipe near the boiler is hot, but the pipes furthest away are cold. What does that mean, and how can I fix it?
There could be air trapped in your system - that is if the pump is working. You might have to bleed the system at the burner and/or at the radiotors.
And a good flush could help, but you might need help with that.
- A : Bleeding valve
- B : Trapped Air
- E : Reducer boiler performance
There are different water heating systems, but I'd check if the the pump that is pushing hot water through the pipes is working.
A circulating pump in a central heating system typically looks like this.
You can tell if your pump is working by:
- Checking if the pipe is cold or hot each side of the pump. If it gets cold a foot or two after the pump, it is not working.
- Checking if it hums or vibrates when the heating is on.
- You should hear the water flow through the pipes when it's on.