
    396 A.2d 839
    Nernberg, et ux., Appellants, v. Economy Heating and Air Conditioning Company, Inc.
    Argued October 25, 1978.
    Maurice A. Nernberg, Jr., for appellants; Marvin Schreiber, for appellee.
    Before VAN der VOORT, SPAETH and MONTGOMERY, JJ.
   Order affirmed.  