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Building physics and building services
Calculate thermal protection, heat emitters, pressurization, and outdoor air for building design.
05available
Select components, balance the building envelope, then size heat emission, hydronics, and ventilation.
Expansion prepared
Calculators in this category
01ISO 10077-1:2017
Window U-value to ISO 10077-1
Determine Uw from glazing, frame, and glazing-edge properties for component selection.
Open calculator →02ISO 13789:2017
Transmission heat loss to ISO 13789
Total envelope HT from component areas, temperature factors, and thermal bridges.
Open calculator →03DIN EN 1264-3:2021
Underfloor heating design flow
Determine circuit mass and volume flow including downward heat loss to DIN EN 1264-3.
Open calculator →04DIN EN 12828:2014
Heating expansion vessel to EN 12828
Calculate minimum nominal volume and verify a selected membrane expansion-vessel size.
Open calculator →05DIN EN 16798-1:2022
Outdoor airflow to DIN EN 16798-1
Add people- and building-related outdoor-air requirements for an occupied non-residential room.
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