All articles tagged with #heating and cooling
Home energy audits, like the one conducted by Mike Childs for homeowner Rachel Boeke, are crucial for identifying heat loss and potential energy inefficiencies in homes. Insulation plays a key role in reducing carbon emissions and cutting energy costs, especially in regions with harsh winters like Minnesota. By addressing insulation and air sealing, homeowners can contribute to fighting climate change while saving money on their power bills.
Engineers at Stanford University have developed colorful paints that can significantly reduce energy use for heating and cooling in buildings. These paints, which reflect infrared heat, can keep buildings cooler in the summer and warmer in the winter without using energy. In laboratory experiments, the paints reduced heating energy use by 36% and cooling energy use by 21%. Computer simulations showed a potential 7.4% reduction in total HVAC energy use for a typical mid-rise apartment building. The paints, available in various colors, are also water-repellant and stable in different climates.
Geothermal or ground-source heat pumps are gaining attention as an efficient and environmentally friendly way to heat and cool homes. These systems use underground temperatures instead of outdoor air, resulting in significant electricity savings compared to air-source heat pumps. While the upfront cost is higher, tax incentives and credits are available to offset the expense. Geothermal systems are particularly beneficial for those living in regions with cold winters and hot summers. Despite some challenges such as permitting delays and lack of awareness, the demand for geothermal systems is growing, and companies like Dandelion Energy and WaterFurnace are working to expand their reach in the market.