Tonight was a good production night. I sanded the filler on the out-let duct from the heater and added more filler. Worked on a pivot arm for the heater control cable so when I pull we get cabin heat and not dumping out the bottom. I don’t won’t the lever out all the time as we fly more in the summer then the cooler times of the year. I taped the two ½” lines together and slid into place and will be flaring out to attach to the heater/cooler.