HVAC (Heating, Ventilation, Air Conditioning) systems are the circulatory lifeblood of a house, hidden from sight yet vital to the working of your home. There are many different types of systems in your home, but for our purposes we will focus on heating and air conditioning. Insulation plays a huge role in both of these processes, so we will highlight this as well. These hidden systems need forethought, because they aren’t easily changed and are expensive and long lasting. The forgotten electrical floor plug or an undersized air conditioning system can be inconvenient and expensive to remedy.