Module 03
Underfloor Heating Design
Upload a floor plan, draw zones, design the pipe layout with calculations.
Drop in a PDF or image from your architect, calibrate the scale in two clicks, draw the heating zones. Draw the pipe layout on the plan with automatic calculations: area, pipe length, warning when a loop exceeds 100 m.

Why designing underfloor heating is hard
Pipe layout design requires CAD-like software costing thousands of pounds or euros. You need training, a licence, and a specific Windows machine. For a single project, that's often too much overhead.
Without such a tool, installers sketch on paper and estimate pipe length from experience. A wrong estimate means buying too much or too little pipe, incorrect spacing, cold spots on the floor, and a complaint from the client.
HeatAlgo takes a different approach: upload a PDF floor plan from the architect or client, draw zones directly on it, and design the pipe layout with real-time thermal calculations.
How to design underfloor heating
Upload the floor plan
PDF, JPG or PNG from the architect or client. Drop the file in and you immediately see the plan in the tool.
Calibrate the scale
Mark a line of known length, enter the metres. 2 clicks and the scale is set.
Draw the heating zones
Trace each room separately. Each zone becomes an independent loop with its own calculations.
Draw the pipe layout
For each zone draw the pipe layout on the plan. Calculations update in real time.
Review the result
Pipe length, spacing, heating power, and a warning if any loop exceeds 100 m. Everything in one place.
Import PDF or image floor plan
Drop in a PDF or photo from the architect. No need to redraw, you work directly on the existing plan.
Scale calibration in two clicks
Mark a line of known length and enter the metres. Done, the scale is calibrated.
Draw pipe layout on the plan
Draw the heating zones and design the pipe layout directly on the floor plan. Calculations update in real time.
Warning for long loops
The system warns you when a loop exceeds 100 metres. You see the exact pipe length for each zone.
Thermal calculations
Zone area, pipe length, spacing, heating power. All calculated automatically from real data.
Unlimited undo/redo
Experiment freely. Every change can be undone. Your work is never lost.
Save and come back later
The project saves automatically. Return from any device and pick up where you left off.
PDF export for the client
A print-ready pipe layout with calculations. A professional document you hand to your client on the spot.
HeatAlgo vs traditional software
Tool comparison for underfloor heating design
Price
HeatAlgo
Free (beta)
Traditional software
£500-£3000
Installation
HeatAlgo
Browser
Traditional software
Computer (Windows)
Floor plan import
HeatAlgo
PDF, JPG, PNG
Traditional software
None or limited
Design on floor plan
HeatAlgo
Yes (draw on imported plan)
Traditional software
Manual drawing
Thermal calculations
HeatAlgo
Yes (area, length, power)
Traditional software
Often not included
Undo/redo
HeatAlgo
Unlimited
Traditional software
Limited