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In the United States, 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, a trade association, in its 2008 standard AHRI 210/240, Performance Rating of Unitary Air-Conditioning and Air-Source Heat Pump Equipment. [1]
A high-quality geothermal heat pump installation can have a SEER in the range of 20 (±). A 29 kW (100,000 BTU/h) SEER 20 air conditioner would require less than 5 kW while operating. There are also new non-compressor-based electrical air conditioning systems with a SEER above 20 coming on the market.
An air source heat pump (ASHP) is a heat pump that can absorb heat from air outside a building and release it inside; it uses the same vapor-compression refrigeration process and much the same equipment as an air conditioner, but in the opposite direction. ASHPs are the most common type of heat pump and, usually being smaller, tend to be used ...
A heat pump system last between 15 and 20 years if well maintained. They also seem to have less maintenance than an air conditioner unit. A furnace, by comparison, has the lifespan of eight to 12 ...
The Mitsubishi model was the first air conditioner with a cross-flow fan. [64] [65] [66] In 1969, the first mini-split air conditioner was sold in the US. [67] Multi-zone ductless systems were invented by Daikin in 1973, and variable refrigerant flow systems (which can be thought of as larger multi-split systems) were also invented by Daikin in ...
ecobee is a Canadian-founded home automation company that makes smart thermostats, temperature, and occupancy sensors, smart light switches, smart cameras, and contact sensors. [2] They were acquired by the American company Generac Holdings in 2021.
The San Francisco 49ers on Monday suspended linebacker De'Vondre Campbell for the final three games of the regular season for refusing to play Thursday night against the Los Angeles Rams.. Niners ...
Whether on their own or sprinkled over a meal, nuts can make for a healthy snack for weight loss. While higher in calories than other snacks, they are a good source of healthy fats that can play ...
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