Whois & Analysis for rayaheatingandcooling.com

Heating, ventilation, and air conditioning (HVAC) is the use of various technologies to control the temperature, humidity, and purity of the air in an enclosed space.

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 "ventilation" is dropped, as in HACR (as in the designation of HACR-rated circuit breakers).

Mississauga, historically known as Toronto Township, is a Canadian city in the province of Ontario, situated on the western shore of Lake Ontario in the Regional Municipality of Peel, adjoining the western border of Toronto.

With a population of 717,961 as of 2021, Mississauga is the seventh-most populous municipality in Canada, third-most in Ontario, and second-most in the Greater Toronto Area (GTA) after Toronto itself.

However, for the first time in its history, the city's population declined according to the 2021 census, from a 2016 population of 721,599 to 717,961, a 0.5 per cent decrease.

A general contractor, main contractor, prime contractor, builder (UK/AUS), or contractor (US and Asia) is responsible for the day-to-day oversight of a construction site, management of vendors and trades, and the communication of information to all involved parties throughout the course of a building project.

In the USA a builder may be a sole proprietor managing a project and performing labor or carpentry work, have a small staff, or may be a very large company managing billion dollar projects.

Some builders build new homes, some are remodelers, some are developers.

Indoor air quality (IAQ) is the air quality within and around buildings and structures.

IAQ is known to affect the health, comfort, and well-being of building occupants.

Poor indoor air quality has been linked to sick building syndrome, reduced productivity, and impaired learning in schools.

Common pollutants of indoor air include: secondhand tobacco smoke, air pollutants from indoor combustion, radon, molds and other allergens, carbon monoxide, volatile organic compounds, legionella and other bacteria, asbestos fibers, carbon dioxide, ozone and particulates.

Source control, filtration, and the use of ventilation to dilute contaminants are the primary methods for improving indoor air quality.

Thermal comfort is the condition of mind that expresses satisfaction with the thermal environment and is assessed by subjective evaluation (ANSI/ASHRAE Standard 55).

The human body can be viewed as a heat engine where food is the input energy.

The human body will release excess heat into the environment, so the body can continue to operate.

The heat transfer is proportional to temperature difference.

In cold environments, the body loses more heat to the environment and in hot environments the body does not release enough heat.

Both the hot and cold scenarios lead to discomfort.

Maintaining this standard of thermal comfort for occupants of buildings or other enclosures is one of the important goals of HVAC (heating, ventilation, and air conditioning) design engineers.