Whois & Analysis for supplyhouse.com

Heating, ventilation and air conditioning (HVAC) is the technology of indoor and vehicular environmental comfort.

Its goal is to provide thermal comfort and acceptable indoor air quality.

HVAC system design is a subdiscipline of mechanical engineering, based on the principles of thermodynamics, fluid mechanics, and heat transfer.

Refrigeration is sometimes added to the field's abbreviation as HVAC&R or HVACR, or ventilating is dropped as in HACR (such as the designation of HACR-rated circuit breakers).

Hydronics is the use of a liquid heat-transfer medium in heating and cooling systems.

The working fluid is typically water, glycol, or mineral oil.

Some of the oldest and most common examples are steam and hot-water radiators.

Historically, in large-scale commercial buildings such as high-rise and campus facilities, a hydronic system may include both a chilled and a heated water loop, to provide for both heating and air conditioning.

Chillers and cooling towers are used either separately or together as means to provide water cooling, while boilers heat water.

A recent innovation is the chiller boiler system, which provides an efficient form of HVAC for homes and smaller commercial spaces.

Cross-linked polyethylene, commonly abbreviated PEX or XLPE, is a form of polyethylene with cross-links.

It is formed into tubing, and is used predominantly in building services pipework systems, hydronic radiant heating and cooling systems, domestic water piping, and insulation for high tension (high voltage) electrical cables.

It is also used for natural gas and offshore oil applications, chemical transportation, and transportation of sewage and slurries.

PEX is an alternative to polyvinyl chloride (PVC), chlorinated polyvinyl chloride (CPVC) or copper tubing for use as residential water pipes.

Radiant heating is a technology for heating indoor and outdoor areas.

Heating by radiant energy is observed every day, the warmth of the sunshine being the most commonly observed example.

Radiant heating as a technology is more narrowly defined.

It is the method of intentionally using the principles of radiant heat to transfer radiant energy from an emitting heat source to an object.

Designs with radiant heating are seen as replacements for conventional convection heating as well as a way of supplying confined outdoor heating.

Plumbing is any system that conveys fluids for a wide range of applications.

Plumbing uses pipes, valves, plumbing fixtures, tanks, and other apparatuses to convey fluids.

Heating and cooling (HVAC), waste removal, and potable water delivery are among the most common uses for plumbing, but it is not limited to these applications.

The word derives from the Latin for lead, plumbum, as the first effective pipes used in the Roman era were lead pipes.