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2. Waste heat recovery unit - Wikipedia

   en.wikipedia.org/wiki/Waste_heat_recovery_unit

   Traditionally, waste heat of low temperature range (0-120 °C, or typically under 100 °C) has not been used for electricity generation despite efforts by ORC companies, [citation needed] mainly because the Carnot efficiency is rather low (max. 18% for 90 °C heating and 20 °C cooling, minus losses, typically ending up with 5-7% net electricity).

3. List of boiler types by manufacturer - Wikipedia

   en.wikipedia.org/wiki/List_of_boiler_types_by...

   heat-recovery boiler: a boiler without its own furnace, used to recover heat from some earlier process, such as a large marine Diesel engine or an industrial furnace. [19] Hornsby boiler: a form of bundled-tube water-tube boiler. [14] Huber boiler: a return-tube boiler used in the Huber company's traction engines. haystack boiler

4. Waste-to-energy plant - Wikipedia

   en.wikipedia.org/wiki/Waste-to-energy_plant

   The waste is then stored until it is time for burning. A few plants use gasification, but most combust the waste directly because it is a mature, efficient technology. The waste can be added to the boiler continuously or in batches, depending on the design of the plant. In terms of volume, waste-to-energy plants incinerate 80 to 90 percent of ...

5. Furnace (central heating) - Wikipedia

   en.wikipedia.org/wiki/Furnace_(central_heating)

   Heating appliances that use steam or hot water as the fluid are normally referred to as a residential steam boilers or residential hot water boilers. The most common fuel source for modern furnaces in North America and much of Europe is natural gas; other common fuel sources include LPG (liquefied petroleum gas), fuel oil, wood and in rare ...

6. Heating oil - Wikipedia

   en.wikipedia.org/wiki/Heating_oil

   Heating oil is widely used in both the United States and Canada, with U.S. residential use most common in the northeastern states of New York and Pennsylvania and in New England, collectively accounting for 85% of total U.S. residential heating oil use. [4]

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