📱 New: the iPhone app, with LiDAR room scanning →
Point your iPhone at a room and AeroCalc measures it with LiDAR. Heat loss to BS EN 12831-1, radiator sizing for any flow temperature, and cooling loads to CIBSE Guide A. Rooms sync to the web, your team and your LilaCRM jobs.
On site and in the office
Walk round the room and the LiDAR scanner traces every wall, window and door. Length, width, height and glazed area drop straight into the calculation — no tape, no typing, no mistakes.
Cooling loadsSolar, people, equipment and fresh air — with the unit to fit.
Measured by LiDAR
4.62 × 3.85 × 2.41 m
3.2 m² of windows · 1 door
✓ Filled in for you
LiDAR room scanWalls, windows and doors traced in seconds, then measured for you.
Heat loss & radiatorsBS EN 12831 room by room, with the ΔT50 radiator output to buy.
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On iPhone Pro models: scan a room in under a minute and get its dimensions and window area filled in.
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See the room you are sizing, with its outside walls and windows, updating as you work.
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Every change recalculates on the spot — try a heat pump at 45°C and see the radiator size change.
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Rooms saved on your phone are on the web straight away, for your whole team.
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Link a location to a job and send its rooms across as a survey, ready to quote.
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Subscribe on the web or in the app — one plan covers the whole team either way.
Start free on the web today — the same account signs in to the app.
The demo is the full calculator. Sign up when you want to save rooms and group them by property.
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BS EN 12831-1:2017 heat loss, Part L U-values by build era, CIBSE room temperatures and air change rates.
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Keep every room of a job together and see the whole-house heat loss for sizing the heat source.
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Invite engineers on Pro or Business. Everyone works from the same locations.
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File rooms and loads onto a LilaCRM job as a survey, ready to quote from.
Works with LilaCRM
LilaCRM runs the rest of the job: customers, quotes, jobs, invoices and bookkeeping for trade businesses, with CIS and VAT tools built in. Connect it once and each AeroCalc location belongs to a LilaCRM job or customer. Its rooms, with their heat loss and cooling loads, are filed on the job as a survey, next to your LiDAR room scans, ready to price the quote from.
Opening to new businesses shortly. Register your interest and your first 30 days are on us.
Start free. Go Pro when you're working every day — your whole team, no adverts, and room for a job a day all year.
£0
£12.99/month
£29.99/month
Prices include VAT. Yearly plans get two months free.