Some condo developers are switching to clean heating and cooling in their properties for improved operations. However, one source stands out for its potential, resilience, reliability and health benefits — geothermal.
Geothermal heating and cooling use the Earth’s heat to warm buildings via a pipe distribution network. A geothermal heating and cooling system could be key to optimized electricity usage and other energy-efficient technologies to retain heat or cool air.
Why geothermal methods for condos?
The danger of climate change is imminent. In 2024, the Earth’s temperature was about 1.47 degrees Celsius (or 2.65 degrees Fahrenheit) warmer than in the late 19th-century. The last decade was the warmest ever recorded.
Non-renewable energy sources are significant contributors to climate change. In 2023, the United Nations Environment Programme revealed that 34 per cent of greenhouse gas (GHG) emissions were caused by human consumption of non-renewable energy sources like fossil fuels, which equaled 20 gigatonnes globally. In Canada, heating and cooling account for more than 40 per cent of energy bills, meaning households contribute heavily to GHG emissions.
Geothermal allows condo residents to use 80 per cent less power than standard furnaces, reducing their carbon footprints and utility costs. With its evident potential and Canada’s vast geothermal resources, condos have a greener avenue for heating and cooling.
The Benefits of Designing New Builds with Geothermal
Why should the condo industry design new buildings with geothermal heating and cooling? They offer a wide range of benefits beyond energy efficiency and long-term cost savings.
Less exposure to heat-related health risks
The traditional air conditioner and air-source heat pump do not eliminate heat — they simply move it to another location. Heat is often transferred to the structure’s surroundings, increasing the already-elevated local temperature. Consistent and extreme heat exposure can cause health problems such as heat stroke, dehydration, skin issues and even heat-related deaths.
A geothermal heating and cooling system is an excellent feature for tenants with older family members, children or those simply looking for healthier living options. The cooling works by eliminating heat in a building without pushing it to the surrounding area. In the colder months, this heat is reused through the thermostat, keeping the indoor temperature optimal for residents.
Ensure there are no leaks in your unit’s structure. These leaks could be through the walls, ceiling or even the window. Ensure your windows have a U-factor rating around .20 to 1.20 and higher SHGC rating between 0 to 1 for sound insulation and heat-retaining abilities.
Provides better aesthetics
A geothermal heating and cooling system does not need bulky fixtures outside the units, like air-conditioning vents or a chimney. It’s space-efficient and only needs one-third of a traditional heating and cooling system’s space.
Geothermal also negates the need for an exhaust vent, reducing the likelihood of drilling unnecessary holes and entry points in a condo building. This, in turn, decreases leak points, which can cause heat or cool air to escape. In addition, geothermal heat pumps are quiet and versatile — they can power heating, in-floor heating, hot water and air conditioning through a single unit.
Steadier service during cold season
Unprecedented weather events and the climate change crises can cause the temperature outside to fluctuate. They are becoming more common, which
makes resilient construction increasingly important. While many furnaces must work harder to withstand a low outside temperature, a geothermal heating system is reliable during colder and rainy seasons, as it draws from the ground. Developers can use it to future-proof new construction.
No harmful waste byproducts expelled
Traditional heating pumps produce harmful waste by-products, which can cause various health issues for building occupants. Alternatively, geothermal heat pumps have no toxic byproducts.
A recent study from the Ottawa-based Association of Community Organizations for Reform Now discovered 78 per cent of tenants believe it’s important that their residence is green. With a rising interest in this lifestyle reform, condos that emphasize sustainability and energy efficiency are more likely to attract long-term residents.
Resilient, clean and reliable temperature control
Geothermal heating and cooling systems are available 24/7, with minor environmental damage and fewer health risks associated with heat, pollution and cold weather. Constructing new builds with geothermal heating and cooling could be the solution for more sustainable, optimal and efficient energy usage and maintenance in your condo.
Evelyn Long is an experienced sustainability writer with publications on Globe-Net, Building Professionals Association, and Building Enclosure. She is also the editor-in-chief of Renovated Magazine, where she shares sustainability tips for homeowners.
