The mark consists in part of a stylized letter "Q". The Q is comprised of a yin-yang symbol with fire on the left side and a drop of water on the right.
"PLUMBING HEATING COOLING"
Design plus words, letters, and/or numbers
Fire (flames), other than emanating from objects, words, numbers, fireplaces or candles , More than one drop including teardrops or raindrops, Yin-Yang symbol, Circles with two breaks or divided in the middle, Circles that are totally or partially shaded., Rectangles that are completely or partially shaded, Objects forming letters or numerals