Marran has been at the forefront of the heating industry for 125 years. The company was started in 1891 when William R. Marran began delivering kerosene for cooking and space heaters by horse-drawn carriage in Patchogue. Over the last century, the company branched into security, air conditioning, gas, solar, and home automation. Marran was involved in designing the System 2000, the most efficient boiler on the market, marking the company's commitment to designing the most efficient and cost effective heat systems. The company installs heating systems, security systems, air conditioning systems, gas systems, and delivers oil to homes and businesses. Marran is still family owned and operated today.