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  2. Is your heater making you sick? How to avoid cold-like ...

    www.aol.com/lifestyle/heater-making-sick-avoid...

    The dry air produced by heating systems can irritate your nasal passages and throat, which can in turn cause discomfort, Lizarzaburu adds. Dry air can also make it harder to fight off colds.

  3. Central heating - Wikipedia

    en.wikipedia.org/wiki/Central_heating

    The condensate water returns to the boiler either by gravity or with the assistance of a pump. Some systems use only a single pipe for combined steam and condensate return. Since trapped air prevents proper circulation, such systems have vent valves to allow air to be purged.

  4. Condensing boiler - Wikipedia

    en.wikipedia.org/wiki/Condensing_boiler

    The condensate expelled from a condensing boiler is acidic, with a pH between 3 and 4. Condensing boilers require a drainpipe for the condensate produced during operation. This consists of a short length of polymer pipe with a vapour trap to prevent exhaust gases from being expelled into the building.

  5. Steam trap - Wikipedia

    en.wikipedia.org/wiki/Steam_trap

    Inverted bucket and float traps are examples of mechanical traps. Float traps can have a mechanical linkage or can seal the trap through use of the float itself. In 1870, inventor James H. Blessing patented the return steam trap, a mechanical trap that returned condensate to the boiler for re-use, which vastly improved the efficiency of steam ...

  6. Cold trap - Wikipedia

    en.wikipedia.org/wiki/Cold_trap

    [3] [4] Reversing this, connecting the down tube to the source of vacuum, places the inlet of the vacuum directly above the condensate, increasing the chances of vapour phase condensate moving up the (uncooled) down tube (towards the pump) or, should the trap begin to fill to an appreciable volume, liquid phase condensate being pulled into the ...

  7. Furnace (central heating) - Wikipedia

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

    Furnaces are mostly used as a major component of a central heating system. Furnaces are permanently installed to provide heat to an interior space through intermediary fluid movement, which may be air, steam, or hot water. Heating appliances that use steam or hot water as the fluid are normally referred to as a residential steam boilers or ...

  8. Damp (structural) - Wikipedia

    en.wikipedia.org/wiki/Damp_(structural)

    A high proportion of damp problems in buildings are caused by ambient climate dependent factors of condensation and rain penetration. [1] Capillary penetration of fluid from the ground up through concrete or masonry is known as "rising damp" and is governed by the shape and porosity of the construction materials through which this evaporation ...

  9. Boiler feedwater - Wikipedia

    en.wikipedia.org/wiki/Boiler_feedwater

    The treatment of boiler water can be put into two parts. These are internal treatment and external treatment. (Sendelbach, p. 131) [4] The internal treatment is for boiler feed water and external treatment is for make-up feed water and the condensate part of the system. Internal treatment protects against feed water hardness by preventing ...