Households are the second-largest energy user in Finland after industry. Reducing energy consumption is one of the most significant ways an individual household can lower its climate and environmental impact. However, always consider the health effects of energy-saving measures.
All households can save energy once they understand their own consumption and identify opportunities to reduce it.
“Sustainable energy use is beneficial in all situations. When considering what measures suit your home, you should ensure that they do not harm indoor environment or health,” says senior researcher Anniina Salmela.
By following THL experts’ tips, you can reduce energy consumption without compromising residents’ health or the condition of the building.
1. Lower room temperature moderately
Indoor temperature affects comfort, and people experience it differently. Spaces where elderly or children live should be kept at a minimum of 20°C. Draft increase the sensation of cold, while high indoor temperatures dry the air, especially in winter.
Adjust temperature according to how each space is used. A cooler bedroom may improve sleep. In spaces not used for living, the temperature can be lowered below 18°C.
2. Prefer passive cooling methods
During summer, use passive cooling methods first – such as curtains, blinds, shading vegetation and ventilation at times when the outdoor temperature is lower than indoors. Always consider the needs of residents. Mechanical cooling during heatwaves protects particularly elderly and people with chronic illnesses from health risks.
3. Keep ventilation running
Ventilation removes moisture and pollutants from indoor air and brings in enough clean air. Ensure ventilation works properly and that spaces such as bathrooms have sufficient heating and ventilation to reduce moisture load.
4. Keep hot water temperature adequate
To prevent Legionella bacteria, hot water in the system should be 50–55°C, and household water outlets should be used daily.
Unnecessary water consumption should still be avoided. You can save energy by shortening shower time, running full loads of laundry and dishes, and avoiding excessive pre-rinsing of dishes under running water.
5. Improve energy use through smart renovations
Energy renovations can reduce energy consumption and costs while improving comfort. Energy efficiency can be improved by adding insulation, updating energy systems or replacing windows.
It is a good idea to combine energy improvements with other lifecycle repairs. Always consult a professional, as incorrect insulation work can cause moisture damage.
6. Choose a primary heating method other than wood burning for detached houses
Smoke from wood burning worsens air quality in small-house areas, causing both health issues and reduced comfort. Burning wood correctly reduces harmful particle emissions. Clean the fireplace and chimney regularly, burn only clean and dry wood, and follow the appliance’s instructions.
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