18 Hacks to Keep Your House Warm This Winter

Duct-Booster Fans

If you use forced-air heat, duct booster fans can help increase airflow into cold rooms. In-line fans fit inside standard metal ducts, mounted near the outlet, and turn on automatically with the furnace or A/C. Some plug into an outlet, while others are hard-wired. For quieter operation, choose a high-quality model with a strong motor.

Register booster fans are easier to install, sitting on or replacing a floor or wall register, and plugging into an outlet. They feature a built-in thermostat that activates when the furnace runs. Prices range from $40 to $70, and various manufacturers offer both types of fans. Don't forget to adjust your thermostat for optimal winter comfort.