|
I was putting some air filter material behind the furnace grill and discovered that the duct from the furnace to the plenum was only;y partially connected (or had become disconnected). Hooked it up and put some duct tape in place to hold it. Been much better since then. Also found that the furnace doesn't need the return air grill....it is sitting in a big open area under the range, pretty much open to unfiltered air from everywhere under the sink and range. Strange set up....our heating is much better since I checked the ducting...like Gruffy said, trace it back to the furnace..
Best,
|