Why my hopt wet doesn't run? I have central heating but today the hot dampen suddenly stop running...

I have central heating but today the hot dampen suddenly stop running from the tap.The radiators working and are hot.Any concept why and what could be wrong with my heat system.
Would adding up a ceilingfan and lighting fixture...
Answers:    Is it possible that a Hot Water line broke?
Do you hear marine running?
Put your ear on the Hot Water Tank and listen ....if there is a broken pipe you should know how to hear it.
Can you put a mobile home on foundation?
Your hot tap marine is most likely a separate system from your heaters. You may be capable of check if your water space heater is off for some sense, but a call to a plumber might be the fastest instrument to fix the problem.