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  2. Thermosiphon - Wikipedia

    en.wikipedia.org/wiki/Thermosiphon

    Thermosyphon circulation in a simple solar water heater (not a working model; there is no water supply to replenish the tank when the tap is used). A thermosiphon (or thermosyphon) is a device that employs a method of passive heat exchange based on natural convection, which circulates a fluid without the necessity of a mechanical pump.

  3. Outdoor wood-fired boiler - Wikipedia

    en.wikipedia.org/wiki/Outdoor_wood-fired_boiler

    The outdoor wood boiler is a variant on the indoor wood, oil or gas boiler. An outdoor wood boiler or outdoor wood stove is a unit about 4-6 feet wide and around 10 feet long. It is made up of four main parts- the firebox, which can be either round or square, the water jacket, the heat exchanger, and the weather proof housing.

  4. Furnace (central heating) - Wikipedia

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

    Diagram of natural draft gas furnace, early 20th century. The first category of furnaces is natural draft, atmospheric burner furnaces. These furnaces consisted of cast-iron or riveted-steel heat exchangers built within an outer shell of brick, masonry, or steel. The heat exchangers were vented through brick or masonry chimneys.

  5. File:Spiral-heat-exchanger-schematic-workaround.svg - Wikipedia

    en.wikipedia.org/wiki/File:Spiral-heat-exchanger...

    Remove this file once wikimedia's servers start rendering mid-marks and dashed strokes correctly. Schematic of a spiral heat exchanger cross-section. The hot medium 1 warms the cold medium 2 flowing in the opposite direction (and, respectively, medium 2 cools medium 1 down)

  6. Reboiler - Wikipedia

    en.wikipedia.org/wiki/Reboiler

    Fired heaters (Image 3), also known as furnaces, may be used as a distillation column reboiler. A pump is required to circulate the column bottoms through the heat transfer tubes in the furnace's convection and radiant sections. The heat source for the fired heater reboiler may be either fuel gas or fuel oil.

  7. Central heating - Wikipedia

    en.wikipedia.org/wiki/Central_heating

    65–97% for gas-fired heating; 80–89% for oil-fired and; 45–60% for coal-fired heating. [26] Oil storage tanks, especially underground storage tanks, can also impact the environment. Even if a building's heating system was converted from oil long ago, oil may still be impacting the environment by contaminating soil and groundwater.

  8. Biomass heating system - Wikipedia

    en.wikipedia.org/wiki/Biomass_heating_system

    Biomass heating plant in Austria; the heat power is about 1000 kW Fully automatic 140 kW wood chip heating system in Austria. 35 years old. There are four main types of heating systems that use biomass to heat a boiler. The types of biomass heating are fully automated, semi-automated, pellet-fired, and combined heat and power.

  9. Downhole heat exchanger - Wikipedia

    en.wikipedia.org/wiki/Downhole_heat_exchanger

    Bottom end of a Downhole heat exchanger Top end of a Downhole heat exchanger. A downhole heat exchanger, (DHE) also called a borehole heat exchanger, (BHE) is a heat exchanger installed inside a vertical or inclined borehole. [1] It is used to capture or dissipate heat to or from the ground. DHT's are used for geothermal heating, sometimes with ...