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nerve · 12-14-2010, 03:40 PM

There is a lot of hot air coming out around the hose where it meets the outer heater box. See pic below.

Will insulating the area with some spray foam get more heat into the cab of the truck?

12-14-2010, 03:40 PM	#1
nerve Registered User Join Date: Sep 2010 Location: NY Posts: 48	Outer Heater Box hot air question? There is a lot of hot air coming out around the hose where it meets the outer heater box. See pic below. Will insulating the area with some spray foam get more heat into the cab of the truck? Attached Images