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  2. Gas heater - Wikipedia

    en.wikipedia.org/wiki/Gas_heater

    Upright non-flued liquefied petroleum gas heater, 1970s A wall mounted gas heater that runs on either propane or natural gas. A gas heater is a space heater used to heat a room or outdoor area by burning natural gas, liquefied petroleum gas, propane, or butane. Indoor household gas heaters can be broadly categorized in one of two ways: flued or ...

  3. Catalytic heater - Wikipedia

    en.wikipedia.org/wiki/Catalytic_heater

    The following substances are able to help oxidize a fuel for a catalytic heater at a useful rate: Platinum can be used with natural gas, propane and butane. It generates a surface temperature of 300–550 °C, lower than the 760 °C ignition point. [6] Pt heaters are the most common type. [7] Palladium can be used with hydrogen gas.

  4. Fireplace - Wikipedia

    en.wikipedia.org/wiki/Fireplace

    Ventless fireplaces (duct free/room-venting fireplaces) are fueled by either gel, liquid propane, bottled gas or natural gas. [clarification needed] In the United States, some states and local counties have laws restricting these types of fireplaces. They must be properly sized to the area to be heated. [4]

  5. Patio heater - Wikipedia

    en.wikipedia.org/wiki/Patio_heater

    Other styles of outdoor patio heaters include: Wall-mounted patio heater: fixed to a wall or structure making for safe operation; Hanging patio heater: portable and small footprint; comes in electric only; Tabletop patio heater: ultra-portable and great for smaller groups or outdoor dining, but it uses a small propane tank

  6. Radiant heating and cooling - Wikipedia

    en.wikipedia.org/wiki/Radiant_heating_and_cooling

    Wall heating systems; Radiant ceiling panels; Underfloor and wall heating systems often are called low-temperature systems. Since their heating surface is much larger than other systems, a much lower temperature is required to achieve the same level of heat transfer. This provides an improved room climate with healthier humidity levels.

  7. Uniform Mechanical Code - Wikipedia

    en.wikipedia.org/wiki/Uniform_Mechanical_Code

    The Uniform Mechanical Code (UMC) is a model code developed by the International Association of Plumbing and Mechanical Officials to govern the installation, inspection and maintenance of HVAC (heating, ventilating and air-conditioning) and refrigeration systems. It is designated as an American National Standard.

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