Whois & Analysis for airductcleaninghouston.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).

A furnace is a device used for high-temperature heating.

The name derives from Greek word fornax, which means oven.

The heat energy to fuel a furnace may be supplied directly by fuel combustion, by electricity such as the electric arc furnace, or through induction heating in induction furnaces.

Houston is the most populous city in the state of Texas and the fourth-most populous city in the United States.

With a census-estimated 2014 population of 2.239 million within an area of, it also is the largest city in the southern United States and the seat of Harris County.

Located in Southeast Texas near the Gulf of Mexico, it is the principal city of Houston–The Woodlands–Sugar Land, which is the fifth-most populated metropolitan area in the United States.

Air pollution occurs when harmful substances including particulates and biological molecules are introduced into Earth's atmosphere.

It may cause diseases, allergies or death in humans; it may also cause harm to other living organisms such as animals and food crops, and may damage the natural or built environment.

Human activity and natural processes can both generate air pollution.

A house is a building that functions as a home, ranging from simple dwellings such as rudimentary huts of nomadic tribes and the improvised shacks in shantytowns to complex, fixed structures of wood, brick, concrete or other materials containing plumbing, ventilation and electrical systems.

Houses use a range of different roofing systems to keep precipitation such as rain from getting into the dwelling space.

Houses may have doors or locks to secure the dwelling space and protect its inhabitants and contents from burglars or other trespassers.

Most conventional modern houses in Western cultures will contain one or more bedrooms and bathrooms, a kitchen or cooking area, and a living room.

A house may have a separate dining room, or the eating area may be integrated into another room.

Some large houses in North America have a recreation room.

In traditional agriculture-oriented societies, domestic animals such as chickens or larger livestock (like cattle) may share part of the house with humans.

The social unit that lives in a house is known as a household.