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  2. Infiltration (HVAC) - Wikipedia

    en.wikipedia.org/wiki/Infiltration_(HVAC)

    In cold climates, with a 15 MPH wind, residences often have air exchange rates of 1.0 to 1.5 ACHs, far in excess of the ventilation air needs and are thus called loose construction. It is very easy to reduce infiltration rates to less than 1.0 ACH. Smoke candles and blower-door tests can help identify less-than-obvious leaks.

  3. A Florida man claims spray foam insulation made the house ...

    www.aol.com/finance/florida-man-claims-spray...

    Have your heating, ventilation and air-conditioning (HVAC) system inspected to help ensure airborne contaminants — such as fumes from the foam, carbon monoxide, humidity and even mold spores and ...

  4. Duct leakage testing - Wikipedia

    en.wikipedia.org/wiki/Duct_leakage_testing

    A duct leakage tester is a diagnostic tool designed to measure the airtightness of forced air heating, ventilating and air-conditioning (HVAC) ductwork. A duct leakage tester consists of a calibrated fan for measuring an air flow rate and a pressure sensing device to measure the pressure created by the fan flow.

  5. Building airtightness - Wikipedia

    en.wikipedia.org/wiki/Building_airtightness

    They conclude 15% of the space conditioning energy use can be saved in the UK context going from 11.5 m 3 /(m 2 ·h) @50 Pa (average current value) down to 5 m 3 /(m 2 ·h) @50 Pa (achievable). Given its impacts on heat losses, good building airtightness may allow installation of smaller heating and cooling capacities.

  6. Heating, ventilation, and air conditioning - Wikipedia

    en.wikipedia.org/wiki/Heating,_ventilation,_and...

    Central, "all-air" air-conditioning systems (or package systems) with a combined outdoor condenser/evaporator unit are often installed in North American residences, offices, and public buildings, but are difficult to retrofit (install in a building that was not designed to receive it) because of the bulky air ducts required. [32] (Minisplit ...

  7. Air conditioning - Wikipedia

    en.wikipedia.org/wiki/Air_conditioning

    The efficiency of air conditioners is often rated by the seasonal energy efficiency ratio (SEER), which is defined by the Air Conditioning, Heating and Refrigeration Institute in its 2008 standard AHRI 210/240, Performance Rating of Unitary Air-Conditioning and Air-Source Heat Pump Equipment. [61]

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