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Real first time homeowner question here or HVAC person

Is my furnace supposed to groan in the morning and at night? It's maybe 6 months old.....
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ArishMell · 70-79, M
If it's always done that and it is all working as it should, it may be no more than the vibrations of strains changing in the metalwork expanding and contracting with its heating and cooling.

I would expect sounds from a developing mechanical fault to be noticeable at any time it is running, and possibly continually.

My central-heating system makes lots of odd creaks, groans and clunks as the pipes expand and contract.