Fireplace venting

I have a client who has a direct vent fireplace in her basement that comes out at 18" above grade on the side of her house. The vent is the type that is protected, yet still gets quite hot. (hot enough to burn skin) Her concern is that kids will come by and get hurt. Is this a proper installation? I see a lot of them like this and thought they were ok, but told her I would ask some experts to be sure.
Thanks for any replys

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Thanks Bob