Client data without ten phone calls
The client fills in the form themselves, at their own pace - and you review and accept the submission before it enters the project.
The client form is a tool in the HeatAlgo app that collects calculation data straight from the client. Instead of calling around for wall dimensions and window types, you send a link - the client fills in the form at their own pace, and you get the full set of answers to review.

Why it matters
Collecting client data used to take the most time
Before you can calculate the heat load, you need dozens of numbers: room dimensions, wall construction, window types, heat source. Until now that meant phone calls, emails and site visits before you even opened the calculator.
The client form turns this into one link the client fills in themselves - on their own time, on their phone or computer. You get the full set of answers to review, instead of asking for every value one by one.
How it works
Two sides, one form
You send the form to the client
You create a form in the project and send the client a link by email, or simply copy it - to share by text message or WhatsApp.

The second path
Already have the client's documents? No need to wait for the survey
Building design, window and door schedule, energy performance certificate - if you have them at hand, read them in a conversation with the AI assistant, right in the project. The assistant reads the data and proposes values for you to review.
You read the documents in a conversation
Paste text or add files in the assistant's window - the building design, the window schedule or the energy performance certificate go straight in for reading, no form sent to the client.
AI proposes, you approve
The assistant reads values from the documents and shows them as suggestions to review. You approve only the ones you accept - fields with no backing in the documents stay empty.
The data flows into the heat load calculation and beyond
Approved values fill the heat load fields, and after the calculation they feed the preliminary heat pump sizing.
AI only proposes values for the form - the heat load is always calculated by the algorithm, per EN 12831-1. Documents are read in memory, in the conversation they were sent in, and are never stored anywhere.
Privacy
Documents are never stored
Documents you read with the assistant go only to the language model that reads them - in the conversation you sent them in. We don't keep them permanently.
AI never guesses. If it can't find an answer in the materials provided, it leaves the field empty instead of making up a value.
“Documents are read by the AI model (Anthropic) solely to read data from them and are never stored anywhere. Suggested values always require your confirmation.”
You will find the details in the privacy policy, section 4.
What you get
The form, step by step
Comparison
Client form vs collecting data by phone
What collecting client data looks like
HeatAlgo form
Phone and email
Free forever, reports from €25
Price
Your time
Price
Not needed - just a link
Client account
N/A
Client account
AI proposes values for approval
Reading documents
Manually retyping from PDFs and photos
Reading documents
One click - a request for missing fields
Corrections
Another phone call or email
Corrections
One-click import into the heat load calculation
Data in the project
You retype it into the calculator by hand
Data in the project
FAQ
Frequently asked questions
Does the client need to create an account?
No. The client opens the form from a link, fills it in and submits it - no registration, no password.
What if the client gets stuck or forgets something?
You send the form back with a request for specific fields - the client gets a link to the same form, they don't start over.
Does AI guess values that aren't in the documents?
No. AI only proposes what it actually finds in the documents provided. If something isn't there, the field stays empty - you fill it in yourself.
Is there a limit on reading documents?
Yes, AI document reading has a limit on the account. Once it's used up, you fill in the fields by hand - the form and the calculations work as normal.
How do I share the link if I don't have the client's email?
Copy the link with one click and share it however you like, for example by text message or WhatsApp.
Can I fill in the data myself, without sending the form to the client?
Yes. If you have the building documents, read them in a conversation with the AI assistant right in the project - the assistant proposes values, and you approve only the ones you accept.
Which documents can AI read?
For example the building design, the window and door schedule or the energy performance certificate. AI only proposes values it actually finds in the documents - the heat load is always calculated by the algorithm, per EN 12831-1.
Send your first form today
Sign up, create a project and send the client a link to the form - the client and your approval do the rest.