Ackray.com is offering Christmas cards with an hvacr theme at www.ackray.com/holiday. The website has several cards specifically designed for hvac and plumbing contractors, along with some generic designs as well.
The cards can be customized on the front and have a personalized message on the inside, and Ackray.com can also take care of addressing and mailing the cards.
They can be reached at 800-522-4729.
Leaning on experience and data from various K-12 cities and projects, the author pursues some less conventional design approaches. They may revolve around radiant heating and/or cooling, but depending on school size and other factors, the smart use of heat recovery, DOAS, and improved central plants could also put a project on the HVAC honor roll.