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2. 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 ...

3. Seasonal energy efficiency ratio - Wikipedia

   en.wikipedia.org/wiki/Seasonal_energy_efficiency...

   Air-conditioner sizes are often given as "tons" of cooling, where 1 ton of cooling equals 12,000 BTU/h (3.5 kW). 1 ton of cooling equals the amount of power that needs to be applied continuously over a 24-hour period to melt 1 ton of ice. The annual cost of electric energy consumed by an air conditioner may be calculated as follows:

4. Air conditioning - Wikipedia

   en.wikipedia.org/wiki/Air_conditioning

   An air conditioner designed for an occupied space will typically achieve a 30% to 60% relative humidity in the occupied space. [51] Most modern air-conditioning systems feature a dehumidification cycle during which the compressor runs. At the same time, the fan is slowed to reduce the evaporator temperature and condense more water.

5. Home improvement - Wikipedia

   en.wikipedia.org/wiki/Home_improvement

   Home or residential renovation is an almost $300 billion industry in the United States, [5] and a $48 billion industry in Canada. [6] [full citation needed] The average cost per project is $3,000 in the United States and $11,000–15,000 in Canada. Professional home improvement is ancient and goes back to the beginning of recorded civilization.

6. Glossary of HVAC terms - Wikipedia

   en.wikipedia.org/wiki/Glossary_of_HVAC_terms

   The condenser is the hot side of an air conditioner or heat pump. Condensers are heat exchangers, and can transfer heat to air or to an intermediate fluid (such as water or an aqueous solution of ethylene glycol ) to carry heat to a distant sink, such as ground (earth sink), a body of water, or air (as with cooling towers).

7. 13 reasons why your electric bill is so high—plus tips to ...

   www.aol.com/13-reasons-why-electric-bill...

   1. You Could Be on a High Electricity Rate. A high cost per kilowatt hour is the likeliest culprit behind a high energy bill. Even a minor change in wholesale pricing can lead to bill hikes.