Referát: Heating

Heating with solid fuels was the norm for thousands of years. Wood and coal were common fuesl but in areas devoid of these resources, peat, agricultural residue, and dried animal dung were also used. The advent of modern, safe, ande automatic gas-or liquid-fueled heating appliances has replaced most solid-fuel heating appliances. Tending the fire in a solid-fuel heating appliance requires at a minimum, adding fuel and removing ash or clinker. We have grown accustomed to simply adjusting the thermostat if we are uncomfortable.