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2. The best eco-friendly air conditioners to keep you cool this ...

   www.aol.com/best-eco-friendly-air-conditioners...

   That’s why it is monumentally important to have an air conditioning unit that will, at the very least, keep you comfortable at home while the heat wreaks havoc upon the rest of the outside world ...

3. Natural refrigerant - Wikipedia

   en.wikipedia.org/wiki/Natural_refrigerant

   Natural refrigerants are considered substances that serve as refrigerants in refrigeration systems (including refrigerators, HVAC, and air conditioning).They are alternatives to synthetic refrigerants such as chlorofluorocarbon (CFC), hydrochlorofluorocarbon (HCFC), and hydrofluorocarbon (HFC) based refrigerants.

4. R-410A - Wikipedia

   en.wikipedia.org/wiki/R-410A

   R-410A was invented and patented by Allied Signal (now Honeywell) in 1991. [5] Other producers around the world have been licensed to manufacture and sell R-410A. [6] R-410A was successfully commercialized in the air conditioning segment by a combined effort of Carrier Corporation, Emerson Climate Technologies, Inc., Copeland Scroll Compressors (a division of Emerson Electric Company), and ...

5. Green building - Wikipedia

   en.wikipedia.org/wiki/Green_building

   Green building (also known as green construction, sustainable building, or eco-friendly building) refers to both a structure and the application of processes that are environmentally responsible and resource-efficient throughout a building's life-cycle: from planning to design, construction, operation, maintenance, renovation, and demolition. [1]

6. 11 Eco-Friendly Houses That Will Inspire You to Live Greener

   www.aol.com/lifestyle/8-eco-friendly-homes...

   To build their eco-friendly house, she used almost 100 percent recycled wood and devised a system of screens, fans, and skylights to minimize the use of heat and air-conditioning. TOUR THE ENTIRE HOME

7. Sustainable architecture - Wikipedia

   en.wikipedia.org/wiki/Sustainable_architecture

   However, unlike an air conditioner, the condenser and evaporator of an ASHP can switch roles and absorb heat from the cool outside air and dump it into a warm house. Air-source heat pumps are inexpensive relative to other heat pump systems. As the efficiency of air-source heat pumps decline when the outdoor temperature is very cold or very hot ...