How a Toronto Family Cut Winter Energy Costs by Replacing Old Windows and Adding Thermal Drapes

https://squareblogs.net/colynnpouv/h1-b-why-homeowners-in-their-30s-50s-struggle-with-high-summer-energy-bills

Why drafty windows and thin curtains were making a $450,000 home pay more for heat When the Martins bought their 1960s semi in Toronto, they loved the layout and neighborhood. The house had character - and single-pane windows