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2. Passive house - Wikipedia

   en.wikipedia.org/wiki/Passive_house

   The "passive house" standards in Europe set a space heating and cooling energy demand of 15 kWh/m 2 (4,750 BTU/sq ft) per year, and 10 W/m 2 (3.2 Btu/h/sq ft) peak demand. In addition, the total energy to be used in the building operations including heating, cooling, lighting, equipment, hot water, plug loads, etc. is limited to 120 kWh/m 2 ...

3. ASHRAE 90.1 - Wikipedia

   en.wikipedia.org/wiki/ASHRAE_90.1

   The proposed energy cost budget must be less than or equal to the baseline energy cost budget to achieve compliance. The performance approach is also used to demonstrate design energy efficiency, often expressed as percent better than ASHRAE Standard 90.1. Building designs will stated their performance as "40% better than ASHRAE 90.1-2007" or ...

4. Zero-energy building - Wikipedia

   en.wikipedia.org/wiki/Zero-energy_building

   A Zero-Energy Building (ZEB), also known as a Net Zero-Energy (NZE) building, is a building with net zero energy consumption, meaning the total amount of energy used by the building on an annual basis is equal to the amount of renewable energy created on the site or in other definitions by renewable energy sources offsite, using technology such as heat pumps, high efficiency windows and ...

5. 7 Top-Rated Space Heaters Are on Sale for Up to 58% Off at ...

   www.aol.com/entertainment/7-top-rated-space...

   And if your home doesn’t have a heating system or strong insulation, then you may be spending a lot of time bundled under blankets. Related: 11 Chunky Knit Blankets to Keep You Cozy in Cuffing ...

6. Space heater - Wikipedia

   en.wikipedia.org/wiki/Space_heater

   Keeping flammable materials, such as paper, plastics, curtains, furniture, and bedding, at least 3 feet (0.91 m) away from the heater. Turning off the heater when the last adult leaves the room or goes to sleep and keeping children and pets three feet away from the heater. Placing heaters on a flat, hard, nonflammable surface.

7. R-value (insulation) - Wikipedia

   en.wikipedia.org/wiki/R-value_(insulation)

   The R-value is a measure of an insulation sample's ability to reduce the rate of heat flow under specified test conditions. The primary mode of heat transfer impeded by insulation is conduction, but insulation also reduces heat loss by all three heat transfer modes: conduction, convection, and radiation.