We, both Nate and Portman Mechanical, are providing the HVAC 101 section of Nate's book to help understand the basics of home comfort as they pertain to your home.  More information is available here, including a link to purchase a hard copy or electronic copy of Nate's book if you would like further information.    http://www.natethehousewhisperer.com/the-home-comfort-book.html 

Click here for the HVAC 101 Chapter