Straight Dope Message Board

What is this thing on the exterior wall of my house?

Miscellaneous and Personal Stuff I Must Share

lieu May 10, 2011, 12:02pm 21

Well hell yeah, in case it was about to blow up.

Topic		Replies	Views	Activity
Another "What is this thing?" post Factual Questions	23	1465	June 6, 2018
Does anyone know what this is, Part 2? Factual Questions	9	1042	December 15, 2020
Please identify this wall fitting/fixture. What's it for? Miscellaneous and Personal Stuff I Must Share	14	1770	May 14, 2009
Strange Gas Line Wire Factual Questions	13	1386	December 9, 2019
What the heck is this thing on a power pole? Factual Questions	22	6264	October 6, 2006