As on the previous floor, there was an improvised system of metal pipes to remove the exhaust from a gas heater.
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In this room was a gas heater that had an improvised exhaust system attached to it made from bits of sheet metal hammered together.
The gas-powered space heater hissed.
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You pay for gas to run the water heater, and at the same time, you are paying for electricity to run the air conditioner.
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Engineers have built a contraption of water heater size that strips hydrogen out of natural gas while burning the carbon to provide heat for the home.
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