Heat Loss and Heat Gain – Climate and the Efficiency of Your HVAC System

Everyone wants a home that’s warm in the winter and cool in the summer. Nobody wants a house that’s cold in the winter and hot in the summer. This is why many people decide to have central heating and air conditioning systems installed in their homes. But while this is a common decision to make initially, how each individual homeowner proceeds will depend on their home, and how efficiently it is able to retain energy. This presents the problem of heat loss and heat gain, which must be considered in order to design a heating, ventilation and air conditioning (HVAC) system that will work in that specific home.

Heat loss and heat gain in a home depend on a few factors. First, it depends a lot on the climate in the area. Those who live in the desert are a lot more concerned with keeping the house cool during a summer day than they generally are with keeping it warm at night. But they also need their systems to keep their homes warm in the winter, when desert temperatures can fall to below freezing. In contrast, those who live in colder climes may be more concerned with keeping their houses warm in the winter, and may not worry at all about keeping cool in the summer.

LEED for HomesAnother factor that will affect heat loss and heat gain in a home is how airtight the home itself is. If it has good, strong seals around windows and doors, and if the roof is sound, and the windows and doors are insulated to maintain a steady temperature, then it will be a lot easier for the HVAC system to regulate the temperature of the home. But if the home is old and drafty, and there are cracks under all of the windows and doors, the HVAC system will have to work twice as hard to keep the temperature in the home under control.

Insulation will also affect heat loss and heat gain in a home. When your home is well-insulated, it retains heat or retains cool, depending on where you set the internal temperature of your home. Not only does it prevent air from escaping, but it also helps to keep the air in the home at the right temperature for a longer time, so that the HVAC system doesn’t have to work as hard to retain it. Whether it’s summer or winter, insulation can help your HVAC system to be more efficient.