Firewall leaks-Help

[Wgesnerjr]

for the space around the hoses, there is something under the box that has surely deteriorated by now. I would head down to the auto parts store and get some of the black tar like stuff that goes around the lines on an A/C truck. I don't know the official name of this stuff but it would work great in this application. At least until your ready to pull the heater box and fix it.