top of page

How Heat Recovery Ventilators Work


A heat recovery ventilator (HRV) complements your existing furnace or home heating system, increasing efficiency and helping your HVAC system reduce your energy bills. It works independently of your furnace and recycles the heat inside your home, making it a worthwhile addition to any heating system. The Aire One Heating & Cooling team helps people in Guelph, Waterloo and Cambridge find ways to save on energy costs. Here’s how an HRV can help.

Heat recycling

Let’s say it’s a winter cold snap. Your furnace works hard to keep your home comfortable by drawing in fresh, cold air from outside, heating it and circulating it around your home. As fresh air comes in, the warm, stale air is expelled into the atmosphere. Without a heat recovery ventilator, the energy used to heat that air goes to waste. Alternatively, a heat recovery ventilator sucks the thermal energy from the interior air before it’s vented outside. The HRV unit transfers the heat from the stale indoor air to the fresh, cold air entering your home from outside, and warms up before it flows into the furnace. The result, your furnace doesn’t have to work as hard to heat up the air for your home.

Heat exchanger

At the heart of the HRV system is a heat exchanger. Warm, stale interior air and cold, fresh air from outside are pumped into the exchanger simultaneously. They flow through individual tubes, so the interior and exterior air never mix. The heat exchanger sucks the thermal energy from the warm air and transfers it to the cold air, thereby recycling the heat generated earlier by the furnace.

Improved efficiency

Modern HRV systems can drastically improve the efficiency of your heating system. They can recover up to 90 percent of the heat from the old air and apply it to the fresh air coming into the building. Energy savings can be dramatic, especially if a system is installed in an office building or industrial structure. Heat recovery ventilators are also integral to fighting climate change. They reduce the greenhouse gas emissions that residential and commercial heating systems emit into the atmosphere.

HVAC systems and furnace repair in Guelph, Cambridge and Surrounding Areas

Aire One Heating & Cooling is your trusted HVAC contractor. We provide installation, replacement and furnace repair services for residential and commercial clients in Kitchener, Waterloo, Guelph, Cambridge and surrounding areas. Contact us today to learn more about how we can help you have a cozy and comfortable home this winter


bottom of page