Thanks. I plugged them with brass fittings from Lowes. They actually don't do anything on mine, I thought they'd blow out air but they didn't. Still plugged them bc I didn't think water / debris needed to get in them. There was a small 5/16" bolt hole though that definitely shot hot air out of it. I plugged that though & all is good. I still used the gaskets that came with it as I couldn't track down the gasket that didn't have holes in it. Seems to be fine though.