Folks,
In the last week or 10 days, I've noticed that when my UFH is calling for heat for any moderate amount of time (e.g 30 mins+), the output temp from the boiler appears to drop significantly. Typically the output is circa 80 deg C but I noticed at the weekend that I after a run time as short as 30mins, I can literally grasp and hold the exit pipe from the boiler and it is only moderately warm. When the boiler returns to pause mode, it again reads at circa 80 deg, so the problem is only when there is demand on the system. Any ideas as to what my problem may possibly be? As an fyi, the fuel source is wood pellet but given the "resting" water temp is 80, it leads me to believe the problem is not necessarily with the boiler but elsewhere in the system. Thanks in advance.
In the last week or 10 days, I've noticed that when my UFH is calling for heat for any moderate amount of time (e.g 30 mins+), the output temp from the boiler appears to drop significantly. Typically the output is circa 80 deg C but I noticed at the weekend that I after a run time as short as 30mins, I can literally grasp and hold the exit pipe from the boiler and it is only moderately warm. When the boiler returns to pause mode, it again reads at circa 80 deg, so the problem is only when there is demand on the system. Any ideas as to what my problem may possibly be? As an fyi, the fuel source is wood pellet but given the "resting" water temp is 80, it leads me to believe the problem is not necessarily with the boiler but elsewhere in the system. Thanks in advance.