Watsco, Inc. (NYSE:WSO) (Paris: WSO) today reported record revenues, net income and earnings per share for its fourth quarter and full year ended December 31, 2013. Fourth Quarter Results Earnings per share increased 22% to a record 50 cents compared to 41 cents in 2012 (on an adjusted basis). Operating income increased 20% to a record $40 million with a 50 basis-point improvement in operating margin. Net income increased 17% to a record $17 million. Revenues increased 8% to a record $827 million, reflecting a 10% increase in sales of HVAC equipment (63% of sales), a 5% increase in sales of other HVAC products (32% of sales) and a 2% decrease in sales of commercial refrigeration products (5% of sales). Gross profit increased 9% to a record $199 million with gross profit margin improving 10 basis-points . Selling, general and administrative (SG&A) expenses increased 6% to $158 million and as a percentage of sales declined 40 basis-points to a record low of 19.1%. Albert Nahmad, Watsco's President & CEO stated: "Watsco delivered another solid quarter of earnings growth from higher sales, improved selling margins and the continued effort of our business units to manage operating costs. We saw strength in sales of residential HVAC systems in the United States, which grew 17%, from a combination of strong unit demand and a better sales mix of higher-efficiency systems. Overall, our results represent a great finish to another excellent year.” It is important to note that the fourth quarter of each calendar year is highly seasonal due to the nature and timing of the replacement market for air conditioning, heating and refrigeration systems, which is strongest in the second and third quarters. Accordingly, the Company's fourth quarter financial results are disproportionately affected by this seasonality. Full Year Results Earnings per share increased 21% to a record $3.68 compared to $3.03 in 2012 (on an adjusted basis). Operating income increased 21% to a record $271 million with operating margins improving 70 basis-points to 7.2%. Same-store operating profit increased 19% with operating margins improving 70 basis-points. Net income increased 24% to a record $128 million.