HVAC calculations and designs in the AI era
AI reads the building documents and prefills your project data. The calculations are always done by the algorithm - per EN 12831-1.
How you work with HeatAlgo
Your work in three steps
First you collect the data, then you calculate, then you design.
No more chasing data by phone
You send the client a form link or read the building documents in a conversation with the AI assistant - you review and approve the proposals before they enter the calculation.
Calculate to the standard
Heat load per EN 12831-1 (ISO 6946, ISO 13370) - room by room, following the standard's full procedure.
Design the underfloor heating
You draw the zones on the floor plan, and HeatAlgo works out the pipe spacing, loops and flows - and shows whether the underfloor heating covers the heat load. The execution-ready PDF with your logo comes with the project unlock.
How you work with HeatAlgo
Your work in three steps
First you collect the data, then you calculate, then you design.
No more chasing data by phone
You send the client a form link or read the building documents in a conversation with the AI assistant - you review and approve the proposals before they enter the calculation.
Modules
Every calculation and design in one account
HeatAlgo is a browser-based program for installers: heat load calculations per EN 12831-1, underfloor heating design on the floor plan and preliminary heat pump sizing - plus an AI assistant that reads data from building documents, answers questions about the project and checks the calculations.
Heat load calculations
EN 12831-1 with no shortcuts. A partition library, thermal bridges per Annex B, and results that feed the other modules.
- 3
- modules in one account: heat load, heat pump, underfloor heating
- €25
- one report unlocks the whole project - every module
- EN 12831-1
- compliant heat load calculations
For 33 years I worked all this out more slowly. Now client data arrives on its own, and I get the heat load calculation and the underfloor heating design done in one afternoon.
Jarosław - installer with 33 years of experience, HeatAlgo co-creator
For companies
Lots of calculations a month? Save time.
Client data comes in through forms, and every project is calculated the same way - no matter who runs it.
Free, forever.
You only pay for the finished report.
Build and calculate without limit, no credit card. You only pay for the full document handed to a client - one-off for €25 or unlimited on a subscription.
Blog
Practical knowledge for installers
FAQ
Frequently asked questions
What does HeatAlgo cost?
Your account is free forever - calculate heat loss, size a pump and draw underfloor heating without limit. You only pay for the full report handed to a client: €25 per project, or unlimited on the Installer subscription from €83.25/mo billed annually.
Are the calculations compliant with the standard?
Yes. We calculate the heat load per EN 12831-1 (with ISO 6946 and ISO 13370), room by room, following the standard's full procedure.
Do projects or results ever disappear?
No. Whatever plan you're on, nothing disappears - previews, calculations and history stay with you forever. You only pay for the finished document handed to a client.
How is HeatAlgo different from traditional calculation software?
It goes further: you collect the calculation data with no retyping - you send the client a form or read the building documents in a conversation with the AI assistant, and you review and approve the proposed values before they enter the heat load calculation. On top of that, everything runs in the browser - no installation, no training.
Calculate your first project this week
Create an account and send the client a form, or read their documents with the AI assistant - the full data set lands in the heat load calculation with no retyping.
No payment card. Your projects and calculations stay forever.