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 "ventilation" is dropped, as in HACR (as in the designation of HACR-rated circuit breakers). HVAC is an important part of residential structures such as single family homes, apartment buildings, hotels and senior living facilities, medium to large industrial and office buildings such as skyscrapers and hospitals, vehicles such as cars, trains, airplanes, ships and submarines, and in marine environments, where safe and healthy building conditions are regulated with respect to temperature and humidity, using fresh air from outdoors. Ventilating or ventilation (the "V" in HVAC) is the process of exchanging or replacing air in any space to provide high indoor air quality which involves temperature control, oxygen replenishment, and removal of moisture, odors, smoke, heat, dust, airborne bacteria, carbon dioxide, and other gases. Ventilation removes unpleasant smells and excessive moisture, introduces outside air, keeps interior building air circulating, and prevents stagnation of the interior air. Ventilation often refers to the intentional delivery of the outside air to the building indoor environment.
Related Searches

If you like heater, try these related items.

Similar Topics

Customers looking for heater also searched for:

Sponsored Links
Banner 1
Mackay Heater Hose For Toyota Hiace Lh113 2.8Lt Dsl 3L Lh103R Rzn103 Rz…(CH5409)
Mackay Heater Hose For Toyota Hiace Lh113 2.8Lt Dsl 3L Lh103R Rzn103 Rz…(CH5409)
Price:
163,996.40 AUD
Ends:
Jun 19, 05:34 am
Mackay Heater Hose For Toyota Hiace RZN 113R 2.4L Rzh103 125 89-00 Inle…(CH5405)
Mackay Heater Hose For Toyota Hiace RZN 113R 2.4L Rzh103 125 89-00 Inle…(CH5405)
Price:
163,996.40 AUD
Ends:
Jun 19, 05:34 am
Jayair Heater Tenure F 24V, 2 Speeds 16mm Pipes - Siroco (HA2709)
Jayair Heater Tenure F 24V, 2 Speeds 16mm Pipes - Siroco (HA2709)
Price:
163,996.40 AUD
Ends:
Jun 19, 05:38 am
Kilkenny Thermo Housing V8 Holden Hand Polished No Heater Outlet (WO8NPP)
Kilkenny Thermo Housing V8 Holden Hand Polished No Heater Outlet (WO8NPP)
Price:
163,996.40 AUD
Ends:
Jun 19, 05:47 am
AFI Heater Fan Resistor (HFR1000)
AFI Heater Fan Resistor (HFR1000)
Price:
163,996.40 AUD
Ends:
Jun 19, 05:50 am
Tridon Heater Fan Resistor (TFR063)
Tridon Heater Fan Resistor (TFR063)
Price:
163,996.40 AUD
Ends:
Jun 19, 05:50 am
Tridon Heater Fan Resistor (TFR177)
Tridon Heater Fan Resistor (TFR177)
Price:
163,996.40 AUD
Ends:
Jun 19, 05:51 am
Tridon Heater Fan Resistor For Nissan Patrol Gu Y61 4 Pin (TFR025)
Tridon Heater Fan Resistor For Nissan Patrol Gu Y61 4 Pin (TFR025)
Price:
163,996.40 AUD
Ends:
Jun 19, 05:53 am
Valeo Heater Core Barina Xc 01>05 Combo Xc 01>08 Tigra 05>07 1618222 (HC0144)
Valeo Heater Core Barina Xc 01>05 Combo Xc 01>08 Tigra 05>07 1618222 (HC0144)
Price:
163,996.40 AUD
Ends:
Jun 19, 05:59 am
Mackay Heater Hose - Inlet Colorado Rd TF S85 3.0Lt Diesel (CH5217)
Mackay Heater Hose - Inlet Colorado Rd TF S85 3.0Lt Diesel (CH5217)
Price:
163,996.40 AUD
Ends:
Jun 19, 09:32 am
Mackay Heater Hose - Outlet Colorado Rc TF S85 3.0Lt Diesel (CH5218)
Mackay Heater Hose - Outlet Colorado Rc TF S85 3.0Lt Diesel (CH5218)
Price:
163,996.40 AUD
Ends:
Jun 19, 09:32 am
Nissens Heater Core For Audi A1 and Volkswagen Polo 2003-On (HC0515N)
Nissens Heater Core For Audi A1 and Volkswagen Polo 2003-On (HC0515N)
Price:
163,996.40 AUD
Ends:
Jun 19, 12:47 pm
Nissens Heater Core For Nissan X-Trail T31 Dualis, Qashqai (HC0510N)
Nissens Heater Core For Nissan X-Trail T31 Dualis, Qashqai (HC0510N)
Price:
163,996.40 AUD
Ends:
Jun 19, 12:47 pm
Nissens Heater Assembly For Citroen C4 & Peugeot 307, T6 2000-On (HC0167N)
Nissens Heater Assembly For Citroen C4 & Peugeot 307, T6 2000-On (HC0167N)
Price:
163,996.40 AUD
Ends:
Jun 19, 12:48 pm
Jayrad Heater For Holden Colorado RG 2014-On (HC0181)
Jayrad Heater For Holden Colorado RG 2014-On (HC0181)
Price:
163,996.40 AUD
Ends:
Jun 19, 12:52 pm
Mackay Heater Hose Rear For Toyota HDJ80 4.2Lt Dsl 8720960150 (CH3073)
Mackay Heater Hose Rear For Toyota HDJ80 4.2Lt Dsl 8720960150 (CH3073)
Price:
163,996.40 AUD
Ends:
Jun 26, 03:58 am
Gates Heater Hose FOR HONDA LEGEND KA8 (02-0174)
Gates Heater Hose FOR HONDA LEGEND KA8 (02-0174)
Price:
163,996.40 AUD
Ends:
Jun 27, 09:41 am
Gates Heater Hose (02-0210)
Gates Heater Hose (02-0210)
Price:
163,996.40 AUD
Ends:
Jun 27, 09:41 am
Gates Heater Hose FOR HONDA INTEGRA DA (02-0210)
Gates Heater Hose FOR HONDA INTEGRA DA (02-0210)
Price:
163,996.40 AUD
Ends:
Jun 27, 09:41 am
Gates Heater Hose (02-0174)
Gates Heater Hose (02-0174)
Price:
163,996.40 AUD
Ends:
Jun 27, 09:41 am
BANNER 2