Cleaned & checked 2 gas furnaces. Inspected heat exchanger & flue venting. cleaned burners & flame sensors. Checked voltage & amp draw of motors. Test capacitors. Second floor system: Blower: 5.5A . Inducer: 78A . Gas pressure: 3.4 inches water column. Temperature rise: 74 . Supply: 149 . Return: 75 . First floor system: Blower: 5.6A . Inducer: 2.18A . Gas pressure: 3.5 inches water column. Temperature rise: 57 . Supply: 132 . Return: 75 . Clean and check humidifier, replace pad, checked water flow and drain.