I need information about electrical systems embedded in a slab to remove snow and ice during the winter.

Information about installing electrical and other systems may be found in two articles published in CONCRETE CONSTRUCTION: "Snow Melting Systems: A Review of Pipe, Cable and Prefabricated Mat," October 1963, page 313 and "New Snow Melting System," April 1973, page 188.Our files show that electrical snow melting systems are made by the following companies:

Easy Heat-Wirekraft Inc.
U.S. 20 East
New Carlisle, Indiana 46552

Nelson Electric
Box 726
Tulsa, Oklahoma 74101

Smith Gates Corporation
New Britain Avenue
Farmington, Connecticut 06032

Emerson-Chromalox Inc.
8400 Pershall Road
Hazelwood, Missouri 63042

Chemelex Division
Raychem Corporation
2201 Bay Road
Redwood City, California 94063