enow.com Web Search

Search results

1. Results from the WOW.Com Content Network

2. Gas heater - Wikipedia

   en.wikipedia.org/wiki/Gas_heater

   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 non-flued, or vented and unvented.

3. Catalytic heater - Wikipedia

   en.wikipedia.org/wiki/Catalytic_heater

   A catalytic heater is a flameless heater which relies on catalyzed chemical reactions to break down molecules and produce calefaction (heat). [1] When the catalyst, fuel (e.g., natural gas), and oxygen combine together, they react at a low enough temperature that a flame is not produced. This process keeps repeating itself until either oxygen ...

4. Condensing boiler - Wikipedia

   en.wikipedia.org/wiki/Condensing_boiler

   Condensing boiler. Condensing boilers are water heaters typically used for heating systems that are fueled by gas or oil. When operated in the correct circumstances, a heating system can achieve high efficiency (greater than 90% on the higher heating value) by condensing water vapour found in the exhaust gases in a heat exchanger to preheat the ...

5. Fireplace - Wikipedia

   en.wikipedia.org/wiki/Fireplace

   Modern open fireplace. An outdoor fireplace. A fireplace or hearth is a structure made of brick, stone or metal designed to contain a fire. Fireplaces are used for the relaxing ambiance they create and for heating a room. Modern fireplaces vary in heat efficiency, depending on the design. Historically, they were used for heating a dwelling ...

6. Direct vent fireplace - Wikipedia

   en.wikipedia.org/wiki/Direct_vent_fireplace

   A direct vent fireplace is a prefabricated metal fireplace that employs a direct-vent combustion system. "Direct vent" refers to a sealed-combustion system in which air for combustion is drawn from the outdoors, and waste combustion gasses are exhausted to the outdoors. "Direct vent" does not simply mean that all gasses from combustion are ...

7. Kerosene heater - Wikipedia

   en.wikipedia.org/wiki/Kerosene_heater

   The Japanese non-vented "fan" heater burns kerosene gas and is known as a gasification type heater. The liquid kerosene fuel is pre-heated via an electric heating element to vaporize the fuel. The resulting gas is collected and forced into the burn chamber where it is ignited and burns with a blue flame, similar to propane.

8. Space heater - Wikipedia

   en.wikipedia.org/wiki/Space_heater

   Space heater. Electric infrared space heater. A space heater is a device used to heat a single, small- to medium-sized area. [1] This type of heater can be contrasted with central heating, which distributes heat to multiple areas.

9. Ventilation (architecture) - Wikipedia

   en.wikipedia.org/wiki/Ventilation_(architecture)

   Ventilation (architecture) An ab anbar (water reservoir) with double domes and windcatchers (openings near the top of the towers) in the central desert city of Naeen, Iran. Windcatchers are a form of natural ventilation. [1] Ventilation is the intentional introduction of outdoor air into a space. Ventilation is mainly used to control indoor air ...