The First Now House

The Retrofit Process: HVAC

Saving energy with a new HVAC system

Next to improving insulation, improving a home’s heating, ventilation and air conditioning (HVAC) system can produce the biggest energy reduction and energy savings.

Having dramatically improved the insulation of the Now House envelope, the existing heating and cooling system underwent the following changes.

The Retrofit Process

To achieve our goal of a near zero energy retrofit we made the following changes to this home. As all existing houses have a unique set of conditions and characteristics, the application of the Now House process to another house would produce different design specifications. What follows is not a prescription for the near zero retrofit of all homes.