We have assembled a set of full page (8 1/2″ x 11″) high resolution HVAC related illustrations including a furnace (two views), duct system, and geothermal. There are four images. These are great for a flat rate pricing book, sales presentations, explaining repairs, and training purposes. Show your customers exactly what you are going to repair using these detailed illustrations. You receive jpg and PDF files. These images are not editable like a MS Word document is. You are free to modify them using various image editing software.