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2. Insulated glazing - Wikipedia

   en.wikipedia.org/wiki/Insulated_glazing

   Certain multi-chambered IG units result in R-values as high as R-24. Vacuum Insulating Glass (VIG) units result in R-values as high as R-15 (center of glass). Combining a VIG unit with another glass pane and warm edge spacer result in R-18 (center of glass) or more depending upon the low-e coating(s).

3. Quadruple glazing - Wikipedia

   en.wikipedia.org/wiki/Quadruple_glazing

   Quadruple glazing (quadruple-pane insulating glazing) is a type of insulated glazing comprising four glass panes, commonly equipped with low emissivity coating and insulating gases in the cavities between the glass panes. Quadruple glazing is a subset of multipane (multilayer) glazing systems.

4. Window insulation - Wikipedia

   en.wikipedia.org/wiki/Window_insulation

   These profiles are called thermal breaks and are made from glass fibre reinforced polyamide 6,6. The proportion of glass fibre in the profiles is 25%. The material used for this insulating bar stands out for its low thermal conductivity value (0.30 W/m2K) and its good mechanical properties even at higher temperatures.

5. Glazing (window) - Wikipedia

   en.wikipedia.org/wiki/Glazing_(window)

   The strategy to reduce conduction is the use of Insulated glazing, where two or more panes of glass are used in series, each separated from each other by a space. Double-paned windows are the norm in new residential installations, as they offer substantial energy savings in comparison to single-paned glass.

6. Building insulation - Wikipedia

   en.wikipedia.org/wiki/Building_insulation

   The effectiveness of bulk insulation is commonly evaluated by its R-value, of which there are two – metric (SI) (with unit K⋅W −1 ⋅m 2) and US customary (with unit °F⋅ft 2 ⋅h/BTU), the former being 0.176 times the latter numerically, or the reciprocal quantity the thermal conductivity or U-value W⋅K −1 ⋅m −2.

7. 13 reasons why your electric bill is so high—plus tips to ...

   www.aol.com/13-reasons-why-electric-bill...

   1. You Could Be on a High Electricity Rate. A high cost per kilowatt hour is the likeliest culprit behind a high energy bill. Even a minor change in wholesale pricing can lead to bill hikes.