Tools

Tools for building performance.

Each one runs entirely in your browser — no account, no upload, and nothing kept after the tab closes. Open source where the licence allows it.

Psychrometric Studio
Live

Psychrometric Studio

Moist-air analysis for real buildings

  • Seventeen equipment types, solved stage by stage
  • ASHRAE 55-2023 comfort, evaluated live as you work
  • A full year of EPW weather counted against your design
ZEEL
Beta

ZEEL

Zoned energy estimation for laboratory buildings

  • Twenty-one lab zone types, entered as areas
  • Estimated EUI, carbon and operating cost from the programme
  • Five climate zones and seven conservation measures
Heat Balance Studio
Beta

Heat Balance Studio

Envelope heat balance for early-stage design

  • Eighteen building types from the PNNL prototype models
  • Five envelope surfaces, by U-value or R-value
  • Gains and 24-hour schedules per type, all of them editable
Thermal Network Studio
Beta

Thermal Network Studio

Could this neighbourhood share its heat?

  • Draw any US neighbourhood on a real map
  • Hourly heating and cooling for every building, calibrated to national stock
  • Bore fields, heat pumps, towers, rivers and waste heat on one loop