Hvac Posters and Art Prints Where can I find other hvac designs? Expand or collapse section. In addition to hvac designs, you can explore the marketplace for air conditioning, heating, and ventilation designs sold by independent artists. What material is this item made of? Expand or collapse section. Gallery quality, 100% cotton rag. Ultrachrome archival inks for rich, long-lasting color. Trimmed for framing with a 1 inch border. Learn More » What USA ship methods are available? Expand or…