I am wondering if the system is working correctly. It seems that the system has a very difficult time warming the house even when the temperatures outside are warm. Currently, the water heater is set to around 140 degrees. Are there any hints on how to make the system work better?
One thought I have is that the air ducts may not be set up 'strategically'. The blower passes air over the hot water coils into a large box with outlets to vent the warm air around the house. Leading straight across from the blower is a very large duct that leads up to the attic and then is distributed from the attic to the 2nd floor rooms. At a 90 degree angle to the blower are smaller ducts that direct the heat to the first floor rooms. If I want more of the heat downstairs, can I block off some of the duct work in the blower area that leads upstairs. I've tried closing almost all the vents upstairs, but that doesn't really make a difference.
Thank you for your assistance.