Thinner walls allowed heat to transfer to the food more effectively.

Dr. Appel did not think they were windows, which allow heat inside.

On cold, cloudy days the windows would clear to allow sunlight and heat to fill the office or home.

The holes will allow heat from the lightbulb to escape).

They allow less heat and air conditioning to escape.

When closed, these doors seal the fireplace, but most allow heat to flow into the room.

Holes around the edge of the brake disc allow heat to escape rapidly.

Allow heat to flow until a stationary state is reached in which the temperature at each point on the domain doesn't change anymore.

Then he will kick away some of the sandy blanket to allow heat to escape.

The windows thus allow more heat in over the year than they let escape.