calculator logoKalkulatorPro
Register to start using the calculator!

One account unlocks every calculator on the site — try it free for 5 days, no card required.

Register

Preliminary installation project balance

Quick concept estimate of heating, ventilation, cooling and DHW demand from basic building data.

Building data

Number of floors

Floor area [m²]

Storey height [m]

Number of people

Heating and cooling

Heating load factor

Cooling load factor

Ventilation

Air changes [1/h]

Heat recovery [%]

Outdoor temp. [°C]

Indoor temp. [°C]

DHW and water use

Building type

DHW heat-up time [h]

Water use time [h/day]