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The Energy Department has tips on the most efficient temperature range for homes in the winter months.
STES stores can serve district heating systems, as well as single buildings or complexes. Among seasonal storages used for heating, the design peak annual temperatures generally are in the range of 27 to 80 °C (81 to 180 °F), and the temperature difference occurring in the storage over the course of a year can be several tens of degrees.
The energy efficiency ratio (EER) of a particular cooling device is the ratio of output cooling energy (in BTUs) to input electrical energy (in watt-hours) at a given operating point. EER is generally calculated using a 95 °F (35 °C) outside temperature and an inside (actually return-air) temperature of 80 °F (27 °C) and 50% relative humidity.
The EU standard test conditions for an air source heat pump is at dry-bulb temperature of 20 °C (68 °F) for and 7 °C (44.6 °F) for . [9] Given sub-zero European winter temperatures, real world heating performance is significantly poorer than such standard COP figures imply.
The Ideal Heat Temperature for Your House in the Winter Both experts agree that 68°F is generally the most comfortable daytime temperature for homes in the winter.
According to the Energy Department, turning thermostats back 7 to 10 degrees for eight hours a day can save as much as 10% a year on homeowners' heating costs. And the heating system doesn't work ...
For energy-conversion heating devices their peak steady-state thermal efficiency is often stated, e.g., 'this furnace is 90% efficient', but a more detailed measure of seasonal energy effectiveness is the annual fuel use efficiency (AFUE).
Best temperature setting for thermostats during winter in New York Rochester Gas & Electric (RG&E) says to set your thermostat "as low as comfort permits," as 3% more energy could be used for ...