On Sun, 09 Nov 2008 00:59:21 -0500, DerbyDad03 wrote:

A neighbor had his furnace replaced and added central air.

To run the wire to the exterior disconnect, the contractor drilled a
hole through the block wall. He drilled from the outside, so the
interior hole blew out and is roughly 4" in diameter, at least on the
surface of the block.

On the exterior of the house, he ran the wire through the back of the
disconnect box and attached the box over the hole.

Inside the house, he packed concrete around the wire to seal up the
roughly 4" "hole". So basically, you've got a piece of yellow 12 gauge
Romex coming out of a patch of concrete.

He may have packed concrete around the wire on the exterior also...I
can't see behind the box.

Is this OK or should the wire have been fed through a pipe or sleeve?

Poor quality at best. He probably used a hammerdrill and pounded out the
inside, making the 4" hole. Yes, it is best to run a conduit from the
disconnect box and use sealant, not concrete, to seal the hole around the
conduit.