A common design looks like a high tunnel.Unlike a greenhouse, which uses a heating system, a hoop house is heated by the warmth of the sun.

VOA: special.2009.12.22

But it did not take long for the health care meeting to become heated.

VOA: special.2010.02.27

Once the water is heated, it is kept hot with material called insulation.

VOA: special.2009.04.20

Later,potters developed heated devices called kilns to control the necessary firing conditions.

VOA: special.2009.09.09

Early pottery was heated in the sun or by a fire.

VOA: special.2009.09.09

It was all carefully cut using knives and heated devices.

VOA: special.2011.04.08

They heated the water over the fire.

VOA: special.2010.03.28

And then,despite heated objections from Republicans, Congress approved a nearly to stabilize the financial system and kick start job growth.

VOA: standard.2010.01.15

The power-sharing deal was agreed over four days of sometimes heated talks at AU headquarters in Addis Ababa.

VOA: standard.2009.11.08

When the skin samples were heated to 48 degrees, they produced this capsaicin-like molecule into a solution.

VOA: standard.2010.05.04