A recent post mentioned insulation thickness required on heatpump freon lines. My freon lines have varying thickness and quality of insulation. Some is foam, with the copper line showing in places. Some is a thick black mastic material that is pretty skimpy in places (near the outside condensor unit).
The small line going into the air handler is uninsulated.
How important is it to have the lines fully insulated? I can easily fix the places where the foam type has opened up (in the crawlspace). Should I call in a pro for the mastic (or the whole job) right away.
Or should I just wait for my next servicing (late spring) and have them do it then?
Unit is a Payne 3-ton 12-SEER.