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HVAC (heating, ventilating, and air conditioning; also heating, ventilation, and air conditioning) is the technology of indoor and vehicular environmental comfort.

HVAC Air Conditioning, Heating and Air Units


Find low prices on HVAC air conditioning & heating units at HVAC.com. Visit us today and see how you can get connected with our certified local contractors.

(HVAC) Systems - Environmental Protection Agency


Definition: An acronym for "heating, ventilation, and air conditioning." These three functions are combined into a single, central unit that services the entire house. More »
By Lee Wallender, About.com Guide

Heating, Venting and Cooling at The Home Depot


Shop HVAC Systems at The Home Depot. We offer a wide selection of products and services such as hvac ducts, hvac installation and hvac duct supplies.

HVAC System Basics | Trane


Get the basics about HVAC systems so you can make an educated decision. We review general heating and cooling principles to help you understand your ...

HVAC Training – Online Certification Course - Ashworth College


Our HVAC training course teaches you about Heating and Air Conditioning components, diagnostics, installation and repair and prepares you for the EPA ...

HVAC Excellence


Establishes standards for technician competency and education. Accreditation, certification, and contact information; Test results.

Heating, Air Conditioning, and Refrigeration Mechanics and Installers


Heating, air conditioning, and refrigeration mechanics and installers—often called HVACR technicians—work on heating, ventilation, cooling, and refrigeration ...

Popular Q&A
Q: How to Design an HVAC System.
A: Things You'll Need. Blueprints of the property. Sketch paper and pencils or design software. View Item Details. Design. Figure out the room loads and airflow fo... Read More »
Source: www.ehow.com
Q: How to Cut Into HVAC Ductwork.
A: Things You'll Need. Flat-head screwdriver. Hammer. Red-handled tin snips. Marker. View Item Details. Instructions. Lay out the duct's hole. Hold the duct tap or... Read More »
Source: www.ehow.com
Q: How to Determine HVAC Duct Sizes.
A: 1. Begin with the output of the unit, using a basic airflow measurement of cubic feet per minute; ducts are designed around a basis of 100 cubic feet per minute... Read More »
Source: www.ehow.com
Q: How to Estimate HVAC Installation Time.
A: Instructions. Establish a measurable unit of value for the work to be accomplished. Use man hours, since that is the unit of time generally accepted in the mech... Read More »
Source: www.ehow.com
Q: How to Become a Licensed HVAC Subcontractor.
A: Instructions. Contact your state's contractor licensing board and find out the regulations for licensing subcontractors. States will have varied regulations abo... Read More »
Source: www.ehow.com