Trace the roof from satellite, type the rooms, or let AI read the blueprints — the heat loss & gain number is live while you enter the house. One verified-methodology engine for everyone who works from an F280 number.
Founding beta — free while we finish. Signup asks for an invite code: email us and we'll send one the same day.
The F280 is the document a heat-pump retrofit, a permit package and a rebate file all hang on. HazeLoad gives every professional in that chain the same fast, reviewable, room-by-room calculation.
Live loads while you walk the house, the old furnace's nameplate next to the calculated load, and a report in the homeowner's hands before you leave. The right-sizing story that sells heat pumps.
Fast enough to run on every audit, detailed enough to back your recommendations — import your scan-app exports and the modelling stops eating the site visit.
AI reads the blueprints — rooms, dims and the window schedule land drafted for review. An F280 per lot or per model in minutes, not a week of back-and-forth.
Parallel-path assemblies, AIM-2 air change, BASESIMP foundations, orientation-aware solar — every input visible and overridable, your designer of record on the report.
Every contractor submitting the same consistent room-by-room documentation from the same engine — comparable files, fewer bounce-backs.
Six ways in, one engine out. Every path lands as a draft you confirm — then the same room-by-room calculation runs, every time, on any device.
A fast room table — name, dims, windows. A typical bungalow is entered in under three minutes, loads updating live.
Find the roof, tap the corners — or let the auto-outline draft the footprint. Calibrate any wall with one tape measurement.
Upload the builder's PDF or photos of paper plans. Rooms, dimensions and the window schedule arrive drafted for your review.
Already scan with magicplan or Polycam? Drop the export in — measured dimensions land straight in the table.
Photograph the old furnace's rating plate. The report shows how oversized it is next to the calculated load.
A proper floor-plan editor with walls, windows, doors and a 3D view — when the job calls for the full picture.
Whole-house and room-by-room heating & cooling recalculate on every keystroke — AIM-2 air change, BASESIMP foundations, orientation-aware solar. No “calculate” button, no waiting, no desktop hand-off.
When you're done: a room-by-room F280 report PDF with your company and designer of record — generated on the spot, from your phone.
Both images below were rendered by the app's engine from its built-in example house — a Vernon, BC bungalow. Open the app and they're one tap away.
A full F280 in 8 minutes, on a phone — the walkthrough video lands here with the beta. Until then: grab an invite and time yourself.
Not a spreadsheet with the standard's name on it — a from-scratch implementation of the CSA F280-12 methodology, transcribed clause by clause and tested against the standard's own published verification houses.
All 48 of the standard's published verification cases — four archetype houses, four construction vintages, heating and cooling — pass in our internal test suite, which runs on every single release.*
Built on real jobs, shipped weekly. Here's what just landed and what's next.
Enter the unit's capacity off the submittal — get the balance point, the backup heat in kW, and the graph, all computed from the house's own F280 load.
Clock the existing furnace, take the temperature rise and duct statics — the app derives the existing airflow and fan-law-projects what the new system needs from the same ducts, with alerts when they're drastically mismatched.
Registers at the windows, branch & trunk sizes from each room's calculated CFM, and a fabrication build order the shop can pre-make — stick by stick.
LiDAR room capture on iPhone — walk the room, rooms land in the table. Android AR tape-measure is already in beta.
Seats for your whole crew or program, shared customers and jobs, organization-wide report branding.
We're onboarding professionals in small groups while the beta proves out on real jobs. Signup asks for an invite code — email us and we'll send one the same day. Already a member? Sign in.
HazeLoad comes out of Haze Heating & Air Conditioning in Vernon, BC — built because our own heat-pump jobs needed F280s and the existing tools took hours we didn't have. That field DNA is why it works on a phone in a driveway; the clause-by-clause engine is why advisors, designers and programs can stand behind the number. Every feature is field-tested on real jobs before it ships.