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2. Heating, ventilation, and air conditioning - Wikipedia

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

   Heating, ventilation, and air conditioning (HVAC) is the use of various technologies to control the temperature, humidity, and purity of the air in an enclosed space. Its goal is to provide thermal comfort and acceptable indoor air quality .

3. If You're a Hot Sleeper, Our Experts Recommend These Cooling ...

   www.aol.com/youre-hot-sleeper-experts-recommend...

   We tested dozens of cooling sheet sets for months. Bedgear's Ver-Tex Sheets are the best. Skip to main content. 24/7 Help. For premium support please call: 800-290-4726 more ways to ...

4. The 10 best cooling sheet sets to keep you from overheating

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   These carefully selected sheets will keep you cool. Skip to main content. Sign in. Mail. 24/7 Help. For premium support please call: 800-290-4726 more ways to reach us. Mail. Sign in ...

5. I'm a Hot Sleeper and These Are the Cooling Sheets That Saved ...

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   The best cooling sheets are moisture-wicking, breathable, and comfy. Our editors, who are hot sleepers, share the sheets that get rid of their night sweats.

6. Sheet Metal and Air Conditioning Contractors' National ...

   en.wikipedia.org/wiki/Sheet_Metal_and_Air...

   The Sheet Metal and Air Conditioning Contractors' National Association (SMACNA; pronounced 'Smack'-'Nah') is an international trade association with more than 4,500 contributing contractor members [1] in 103 chapters [2] throughout the United States, Canada, Australia and Brazil.

7. Glossary of HVAC terms - Wikipedia

   en.wikipedia.org/wiki/Glossary_of_HVAC_terms

   HVAC (heating, ventilation, and air conditioning) is a major sub discipline of mechanical engineering. The goal of HVAC design is to balance indoor environmental comfort with other factors such as installation cost, ease of maintenance, and energy efficiency. The discipline of HVAC includes a large number of specialized terms and acronyms, many ...