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2. Solar thermal collector - Wikipedia

   en.wikipedia.org/wiki/Solar_thermal_collector

   Hot air that may enter an HVAC system connected to a transpired collector that has air outlets positioned along the top of the collector, particularly if the collector is west facing. To counter this problem, Matrix Energy has patented a transpired collector with a lower air outlet position and perforated cavity framing to perpetrate increased ...

3. Positive pressure enclosure - Wikipedia

   en.wikipedia.org/wiki/Positive_pressure_enclosure

   A positive pressure enclosure, also known as a welding habitat or hot work habitat, is a chamber used to provide a safe working environment for performing hot work in the presence of explosive gases or vapors. They are commonly used in welding environments and are associated with the offshore oil industry. [1]

4. Hot tub - Wikipedia

   en.wikipedia.org/wiki/Hot_tub

   Fiberglass hot tub: glass-reinforced polyester (GRP) hot tubs are made of a plastic matrix reinforced by fine fibers of glass. [citation needed] Inflatable PVC hot tubs. An inflatable hot tub is an air-filled spa structure. Air is pumped into a vinyl skin that expands and creates a solid form. Most commonly round in shape. [17] [18]

5. Hot tub or cold plunge? Experts say there are benefits — and ...

   www.aol.com/lifestyle/hot-tub-cold-plunge...

   How a hot tub stacks up against taking a cold plunge — and what a new study says about the benefits of doing water therapy after a workout.

6. Bathtub - Wikipedia

   en.wikipedia.org/wiki/Bathtub

   A spa or hot tub is also called a "jacuzzi" since the word became a generic after plumbing component manufacturer Jacuzzi introduced the "Spa Whirlpool" in 1968. Air bubbles may be introduced into the nozzles via an air-bleed venturi pump.

7. Smokeproof enclosure - Wikipedia

   en.wikipedia.org/wiki/Smokeproof_enclosure

   The way that the balcony or vestibule is ventilated divides smokeproof enclosures into two basic types: mechanically ventilated which is not actually a smokeproof enclosures, where the vestibule and stairwell are ventilated by mechanical equipment, and naturally ventilated open air smokeproof enclosures where the open balcony or vestibule [or ...