Why isn't the hot gas discharge lin on air to air heat pumps insulated

Cassie · 09-08-15, 11:05 AM

Haven't been able to get a good answer as to why you wouldn't insulate the vapor line coming off the compressor in heating mode. Most replies just say if it were significant the manufacturers would have done it. But I'm having trouble believing that its energy efficient to blow refrigerated air across two feet of exposed copper (most units have mufflers which act as a pretty good heat sink) for 15 to 20 minutes (typical cycle in heating). If nothing else it would seem that you are clearly desuperheating and maybe even condensing some to bring these components up to temp. What am I missing?

09-08-15, 11:05 AM	#1
Cassie Lurking Renovator Join Date: Sep 2015 Location: PA Posts: 2 Thanks: 0 Thanked 0 Times in 0 Posts	Why isn't the hot gas discharge lin on air to air heat pumps insulated Haven't been able to get a good answer as to why you wouldn't insulate the vapor line coming off the compressor in heating mode. Most replies just say if it were significant the manufacturers would have done it. But I'm having trouble believing that its energy efficient to blow refrigerated air across two feet of exposed copper (most units have mufflers which act as a pretty good heat sink) for 15 to 20 minutes (typical cycle in heating). If nothing else it would seem that you are clearly desuperheating and maybe even condensing some to bring these components up to temp. What am I missing?