Caulking for exterior vent for furnace
I just replaced the core to my suburban furnace and now I’m at the stage where I’m installing the vent cover on the outside of the van. The old vent appeared to have plumbers putty beneath it as caulking. The installation instructions just suggest to caulk it but don’t suggest the product to use. I have silicone caulk and I also have plumbers putty. What’s the standard for this application?
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