Hello Everyone… I came across this in a GE Panel today. The homes in this community originally had Heat Pumps but have converted to Gas. I saw the old a H/pump wiring in the attic and it was spliced in a box. When I opened the panel I saw this(pic) 14 gauge wire spliced to the aluminum heat pump wiring from attic(no ground). I have done several houses with this conversion and usually find the old wiring terminated in the attic and new wiring run to the panel. Beside there being no ground is there technically anything else I should mention.