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2. Thermal insulation - Wikipedia

   en.wikipedia.org/wiki/Thermal_insulation

   Space heating and cooling systems distribute heat throughout buildings by means of pipes or ductwork. Insulating these pipes using pipe insulation reduces energy into unoccupied rooms and prevents condensation from occurring on cold and chilled pipework.

3. Duct (flow) - Wikipedia

   en.wikipedia.org/wiki/Duct_(flow)

   Ducts for air pollution control in a 17000 standard cubic feet per minute regenerative thermal oxidizer (RTO). A round galvanized steel duct connecting to a typical diffuser Fire-resistance rated mechanical shaft with HVAC sheet metal ducting and copper piping, as well as "HOW" (Head-Of-Wall) joint between top of concrete block wall and underside of concrete slab, firestopped with ceramic ...

4. Plenum space - Wikipedia

   en.wikipedia.org/wiki/Plenum_space

   Vertical section through a commercial building using HVAC plenum instead of airspace plenum. When both the supply and return ducts are constructed in this manner, it is possible to insulate the ducts and the dropped ceiling so that the upper airspace is not heated or cooled, increasing energy efficiency.

5. 8 Most Effective Ways To Use Your 2024 Tax Refund To ... - AOL

   www.aol.com/finance/8-most-effective-ways-2024...

   Address Duct and Insulation Sealing. Well-sealed, intact ducts carry hot and cool air to rooms in your home. If old or poorly connected, however, they can leak away a good 20% to 30% of the air ...

6. No, You Don't Need to Clean Your Air Ducts Every Year ... - AOL

   www.aol.com/no-dont-clean-air-ducts-110500245.html

   "[Since] HVAC systems push air through the air ducts that run throughout the home in walls, ceilings, and floors [the] movement of air through these HVAC/furnace systems has the potential to ...

7. 20 Ways to Lower Your Electric Bill This Winter

   www.aol.com/finance/20-ways-lower-electric-bill...

   A major cause of ineffective or inefficient home heating may be clogged ductwork. Over the years, debris like dust, pet hair and dander can accumulate in vents and make it difficult for air to ...