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2. List of boiler types by manufacturer - Wikipedia

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

   composite boiler: a boiler used for either direct-firing, or as a heat-recovery boiler. [19] Corner tube boiler: a natural circulation water tube boiler in which the pre-separation of steam takes place from the water-steam mixture outside the drum and the preheated downcomers. Cornish boiler: a large horizontal stationary boiler with a single flue.

3. Furnace (central heating) - Wikipedia

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

   The fourth category of furnace is the high-efficiency condensing gas furnace. High efficiency condensing gas furnaces typically achieve between 90% and 98% AFUE. [3] A condensing gas furnace includes a sealed combustion area, combustion draft inducer and a secondary heat exchanger. The primary gain in efficiency for a condensing gas furnace, as ...

4. Worcester, Bosch Group - Wikipedia

   en.wikipedia.org/wiki/Worcester,_Bosch_Group

   Worcester's gas, oil and LPG ranges consist of regular boilers, combination boilers and system boilers; these are wall-hung, floor-standing or externally sited. Worcester's solar water heating range was released in 2005, with the ground source heat pump range being released in 2007 and the air source heat pump range being released in 2008.

5. Central heating - Wikipedia

   en.wikipedia.org/wiki/Central_heating

   Sealed systems offer an alternative to open-vent systems, in which steam can escape from the system, and gets replaced from the building's water supply via a feed and central storage system. Heating systems in the United Kingdom and in other parts of Europe commonly combine the needs of space heating with domestic hot-water heating.

6. Vaillant Group - Wikipedia

   en.wikipedia.org/wiki/Vaillant_Group

   Notable landmarks in the company's history include the launch of the first wall-hung circulation water heater, the Circo Geyser, in 1961, and the first wall-hung water heater with condensing boiler technology that was developed and produced in-house in 1995. 2001 saw the internationalisation and expansion of the Vaillant Group's brand and ...

7. Rheem Manufacturing Company - Wikipedia

   en.wikipedia.org/wiki/Rheem_Manufacturing_Company

   By 2008, a report by the United States Department of Energy ranked the firm as fifth in the US in the central air conditioner and heat pump market with a 12% market share (behind UTC/Carrier with 27%, both Goodman/Amana and American Standard/Trane with 14% and Lennox with 12%), while in the residential gas furnace market as of 2008, the company ...