Wow! thanks so much for the quick reply. looking for something to replace my can light.... like the Nutone forced air heat/light/night light/exhaust fan (attached pic)(round) or like the Nutone QT9093WH . can't find anything so I may just not hook up the exhaust fan! genious! now the big question is, if it is ok to use this model in an insulated attic. I am phoning Nutone in the morning.

Baseboards are convection heaters that are designed to heat the air and provide negligible radiant heat. Most wood stoves and gas stoves provide both, with radiant heat from the front and glass, but most of the heating is of the air through convection.

SR The new tile floor is down. We thought about electric radiant but did not have room (old house and had constraints). The kitchen is completed but we do have some space in a wall that is an enclosure that had been built to house a built-in refrigerator.

You don't mention where the furnace and duct is located but being in a cold basement or especially an attic where cold air naturally falls, you could have some migration. In addition you may have a fresh air make up duct that is letting even colder outdoor air into the return duct from the outside. This you should check, some are wide open to the outdoor intake duct and can have a manual damper while some have a motorized damper that should be controlled with blower operation. Make sure the return duct doesn't have any leaks and check connections and cabinet for leaks and cracks for air to infiltrate. Most furnaces have lousy gaskets on the blower doors and do not seal well. You might try taping the seams with a good aluminum duct tape. The problem with covering the return is having the furnace turn on without removing the cover could result in unit control and/or blower damage, including overheating and fire.