A Secret Security Cabinet
(Page 3 of 3)
January/February 1983
By the Mother Earth News editors
If you want to include a shelf, scribe a circle, with the same diameter as the inside of your vessel, on the scrap of plywood, then cut the disk out with a saber saw. (The platform can rest on small angle brackets made from the leftover 1" flat stock and fastened — in a three-point arrangement — to the tank's inner walls.)
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To mount the removable cover panel on the heater jacket, you'll have to cut your sheet-metal strip into 1-1/2" X 3" pieces, then fasten these (by tack-welding or bending-and-bolting) to the outside of the vessel so they protrude perpendicularly from its surface, with the longest edge running vertically. (Ideally, the half-dozen plates should be spaced evenly around the access hole and positioned to meet the edge of the hatch opening when the cylindrical jacket and insulation are slipped back in place.) The magnetic cabinet latches — attached to these mounts with pop rivets or small bolts — will keep the skin in position after everything's together.
That's about it. Of course, you'll want to plumb "dummy" water lines and a fake electrical cable to the rear of the cabinet so everything looks as ordinary as possible (do be sure the door will still open, though). And you may wish to weight the base of the tank with sand or concrete to give it some mass.
Now, you're one of the select few who know the secret of the trick water heater that "turns" into a safe!
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