1.   And never try to warm the house by turning on an oven that runs on natural gas or propane.

2.   As I said, the phenomenon could be just the result of having to warm a house all winter with an oven and two kilowatt-guzzling space heaters.

3.   Fire can cook your meals and warm your house but it can also burn your house down.

4.   For centuries, Spanish farmers have been burning dried olive pulp to warm their houses.

5.   Never warm a house with a natural gas or propane oven.

6.   This can help keep the house cool in the summer, but in the winter this same barrier will keep the sun from warming the house.

7.   Though their gas stove and several oil lamps warm the house during the day, the temperature plummets each night.

8.   Tucked beneath the sloping roof, it helps warm the house in the winter by encouraging the convection of heat.

9.   Unusually cold winter weather hit Ukraine early this year, prompting some residents to use homemade heating devices to warm their houses because of often erratic energy supplies.