10 20 60 80 100. 40 120 50 °C 50 Winter winds eat up cold cash Before the mercury dips, follow these tips to minimize your heating costs: Seal air leaks around windows and doors. Caulk or seal entry points where ductwork, wiring, and plumbing are installed. · Add insulation to the foundation and attic. For more energy-saving tips, visit otpco.com/SaveNow. OTTER TAIL POWER COMPANY 20 30 0 10 20 60 80 100. 40 120 50 °C 50 Winter winds eat up cold cash Before the mercury dips, follow these tips to minimize your heating costs: Seal air leaks around windows and doors. Caulk or seal entry points where ductwork, wiring, and plumbing are installed. · Add insulation to the foundation and attic. For more energy-saving tips, visit otpco.com/SaveNow. OTTER TAIL POWER COMPANY 20 30 0