Add Yahoo as a preferred source to see more of our stories on Google. BanksPhotos/Getty Images Poorly sealed windows allow heat to enter your home during the summer and cool drafts during the winter.

The onset of winter means falling temperatures, with furnaces starting to kick on for the first time in months. But what happens when that furnace keeps grinding away, burning precious energy, without ...

Poorly sealed windows allow heat to enter your home during the summer and cool drafts during the winter. As a result, your HVAC unit works overtime to maintain your desired temperature, leading to ...