The engineers cleaned the heat exchangers to improve energy efficiency during the winter.

Many homeowners are installing heat pumps to reduce their energy bills and carbon footprint.

The engineers tested several new heat sinks to improve the laptop's cooling performance.

During the winter, we had to order heating oil twice because the old furnace was inefficient.

The undercover officer entered the crowded club, packing heat but keeping his badge visible.

The season ended with two dead heats that puzzled the statisticians and delighted the fans.

The reactor's cooling system channels excess energy to a designated heat dump located outside the main facility.

She bought a new set of heat-resistant gloves before grilling dinner.

He insisted he attended the meeting peacefully, but it turned out he had packed heat in his briefcase.

Farmers worry that prolonged heat waves will reduce crop yields this summer.