My dormered Hicksville cape has cold spots upstairs and the boiler runs constantly. What is the diagnosis path?
The technician maps the distribution first: which loops serve the dormers, whether the single zone can ever satisfy two floors, and whether the boiler is actually keeping up or just running. Constant running with cold upstairs usually means the distribution cannot deliver what the boiler makes. The fix is zoning or baseboard work more often than a new boiler.





