Program options - Dialogs

Dialogs tab of the Program options dialog

Calculation dialogs

These options control whether a calculation option dialog appears by default before every calculation. Note that a dialog always appears when you press Update.

New object dialogs

When you create a new site or building, a dialog box appears by default allowing you to enter basic data on the new object.  If you prefer not to see these dialogs and just use default data, uncheck these two check boxes.

EN ISO 6946 Glazing U-value Calculations

There are some options for the calculation of the U-value ISO 6946.

Fixed mean gas temperature (10°C)

You can choose to fix the mean gas temperature to 10°C which is the requirement for strict adherence to ISO 6946. Unchecking this option allows the gas temperature for each gas layer to be calculated individually for a more accurate estimate of gas conduction (and hence the glazing U-value) to be calculated.

Outside air temperature

You can define the outside air temperature to be used as boundary conditions in the calculation of glazing U-value. The outside air temperature should be 0°C for strict adherence to ISO 6946 .

Inside air temperature

You can define the inside air temperature to be used as boundary conditions in the calculation of glazing U-value. The inside temperature should be 20°C for strict adherence to ISO 6946 .