http://melsheater.com/heater.html Mel's Heater Service, LLC is happy to provide Energy Logic™ waste oil heaters in Lancaster, Chester and Delaware PA. Efficient heating systems for commercial buildings have been are our specialty since 1990. Waste oil heaters are not only energy efficient, but cost efficient too. Call us at 717-768-3509. http://melsheater.tumblr.com/