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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 .
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 ...
A convection heater, also known as a convector heater, is a type of heater that utilizes convection currents [ 1] to heat and circulate air. These currents move through the appliance and across its heating element, [ 2] using thermal conduction [ 3] to warm the air and decrease its density relative to colder air, causing it to rise.
Radiator (heating) Heat exchange by built-in bathroom radiator uses hot water flow through the stainless steel pipes seen here to raise the temperature of the ambient air. The radiator depicted here also serves as a towel rack and warmer. Radiators and convectors are heat exchangers designed to transfer thermal energy from one medium to another ...
Radiant heating and cooling is a category of HVAC technologies that exchange heat by both convection and radiation with the environments they are designed to heat or cool. There are many subcategories of radiant heating and cooling, including: "radiant ceiling panels", [ 1] "embedded surface systems", [ 1] "thermally active building systems ...
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 ...
A heating element is a device used for conversion of electric energy into heat, consisting of a heating resistor and accessories. [ 1] Heat is generated by the passage of electric current through a resistor through a process known as Joule Heating. Heating elements are used in household appliances, industrial equipment, and scientific ...
A storage heater or heat bank (Australia) is an electrical heater which stores thermal energy during the evening, or at night when electricity is available at lower cost, and releases the heat during the day as required. Alternatively, solar storage heaters are designed to store solar energy as heat, to be released during the night or other ...