K&S WP-Rechner Light

Properly sizing your heat pump – the free basic version.

The K&S Heat Pump Calculator Light helps you professionally design a heat pump – for new construction, renovations, or when consulting with clients as a tradesperson or energy advisor.


Properly sizing your heat pump – the free basic version.

The K&S Heat Pump Calculator Light helps you correctly design your heat pump – for new construction, renovations, or when advising clients. INCLUDED FREE OF CHARGE

- Enter standard heating load and select operating mode (monovalent, monoenergetic, bivalent-parallel/-alternative)

- Recommendation of the heat pump's nominal output according to VDI 4645

- Sizing of heating element/auxiliary heater
- Design for inverter and pulsed units

ADDLED WITH PRO

- Domestic hot water design (storage requirements, circulation, total output)

- SPF & scenarios: electricity consumption, cost comparison gas/oil vs. heat pump, CO₂ balance

- Complete calculation process with detailed table

- Professional PDF customer report for saving and sharing

FOR WHOM
Tradespeople, energy consultants, planners, and technically skilled building owners who want to quickly convert an existing heating load calculation into a reliable heat pump design.


NOTES

- The standard heating load (e.g., according to DIN EN 12831) is entered – a heating load calculation is required.

- Runs completely offline – all calculations are performed exclusively on your device.

- No registration, no data collection, no tracking.

- This calculator does not replace a legally binding professional design, but provides a sound basis for your calculations.

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