No matter how efficient your furnace, heat pump, or air conditioner is, it doesn’t matter if your home can’t hold onto its comfortable temperature. If heat escapes through walls, ceilings, windows, doors, or through the foundation of your home, your heating systems have to work harder to compensate for the loss. This means that if you reduce home heat loss, not only do you lower the energy use of your HVAC equipment, but you can keep your home more comfortable year-round.