g-Value | gtot-Value | U-Value | Utot-Value |
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How we calculate energy savings
Insulation and solar heat gain calculations are performed in WIS 3.0.1.SP2 in compliance with EN-ISO 52022-3 algorithms and are based on annual Solar irradiations and thermal heat flow through the fenestration. Local meteorological data and cost of electricity are based on yearly averages. COP of the air conditioning/heat pump in these calculations is 3.5. Savings in money is based on local average, energy rates and currency.
Window dimensions