Permit-Ready Heat Loss Calculations & Radiant Design
Upload your floor plans today. Get a firm quote in 24 hours. Receive your BCIN-stamped CSA F280 heat loss report, HVAC design & mechanical drawings — accepted by every Ontario municipality.
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PDF, CAD, JPG, PNG — any format works
If you're building in our area, you don't need to manage floor plans, HVAC designers, contractors, and permits separately. Our icfhome.ca team handles your complete custom ICF home build — from design through to occupancy — including all engineering and permits, done entirely in-house.
Ontario Building Code requires a certified CSA F280 heating load calculation before any new home permit is issued — no exceptions, anywhere in Ontario.
An oversized furnace or heat pump short-cycles constantly — wasting fuel every month and wearing out equipment years early.
Costs thousands long-termCan't keep up on Ontario's coldest nights. Your inspector flags it on day one. Permit held, builder sits idle.
Fails inspection instantlyOur BCIN-stamped CSA F280 report ensures your system is sized for your exact home, insulation, and Ontario climate zone.
Accepted province-wideSend us your floor plans in any format. Fill in project details. Takes 3 minutes.
TodayWe review and email a firm flat price. No hourly billing, no surprises.
Within 24 hoursApprove your quote and pay via Stripe. Instant confirmation.
When you're readyBCIN-stamped CSA F280 report by email, ready for your permit package.
48 hours after paymentReport not delivered within 48 hours of payment? Full refund. No questions asked.
Flat-rate pricing — no hourly billing. You know exactly what you're getting before you pay. View all services →
Room-by-room heat loss analysis using your actual floor plans, wall assemblies, window specs, and Ontario climate zone data. BCIN-stamped report accepted by every Ontario municipality.
Complete permit package: heat loss report, duct layout, equipment schedule, ventilation summary, HRV design, and BCIN-stamped mechanical drawings.
Accurate sizing using CSA F280 load data. Right capacity for Ontario winters, qualifies for government rebates up to $7,500, passes OBC 9.36 energy compliance.
OBC-compliant ventilation design, HRV/ERV selection, plus full radiant floor layout with manifold sizing, loop lengths, and boiler specifications.
Every document your Ontario building permit application requires — stamped, signed, ready to submit.
Every room calculated separately — walls, windows, ceiling, floor, infiltration. Shows exactly where heat escapes.
Right-sized furnace, heat pump, or boiler matched to your calculated design heat loss. Backup heat included.
Fully dimensioned supply and return duct layout with airflow for every room per HRAI standards.
Whole-home ventilation calculation, HRV/ERV selection, and OBC-compliant fresh air distribution.
All documents stamped by our BCIN-registered HVAC designer — as required by Ontario Building Code.
This 28,400 BTU/h figure tells your HVAC contractor exactly what size furnace or heat pump to install. Your building permit depends on this number being certified and accurate.
Get a ballpark heating load in 60 seconds — no signup, no obligation. Not permit-ready, but great for planning.
Adjust your home specs and see your estimated heating load. Lookup any Ontario municipality's design temperature, climate zone, and permit portal instantly.
Everything your permit package needs in plain English. What your building department will check before approving your application — municipality by municipality.
Download Free PDF →Heating design temperatures for 50+ Ontario municipalities. Climate zones, heating degree days, and permit portal types. Print-and-keep for contractors and designers.
Download Free PDF →Reports accepted by every Ontario building department. We know Simcoe County, Georgian Bay, and Muskoka best — dedicated local pages for each municipality.
Province-wide delivery · Local expertise
If your project is in Simcoe County, Georgian Bay, Barrie, Collingwood, or Muskoka — our icfhome.ca team builds the entire custom ICF home, HVAC and all.
→ Learn more at icfhome.caReal feedback from people who needed their permit approved fast.
"Submitted plans Monday, had my quote by end of day, paid Tuesday, had my complete CSA F280 heat loss report Thursday. My contractor was shocked — everyone else said two weeks minimum."
"My builder didn't offer this service. Found Ontario Heat Loss online, uploaded my plans, report came back perfect — passed the City of Collingwood on first submission. Zero issues."
"Self-builder in Muskoka. Had no idea what CSA F280 was until I got rejected at the permit office. These guys explained everything and turned my heating load report around in 48 hours."
The most common questions — answered in plain language.
Yes — it's mandatory under the Ontario Building Code for every new home. Your building department will not accept your application without a certified heat loss report. This applies in Barrie, Collingwood, Oro-Medonte, Muskoka, and every Ontario municipality.
Only if they hold a BCIN number for HVAC design. Most installers don't — they're licensed to install, not design. An uncertified heat loss report will be rejected at the permit office immediately. Learn more about BCIN registration →
Any format — PDF, DWG, CAD, JPG, PNG, or even photos of hand-drawn plans. As long as we can read room dimensions, wall assemblies, and window locations, we can produce your certified report.
Upload your plans for free — no charge to get a quote. We review your project and email a firm flat price within 24 hours. Pay securely online via Stripe, and your BCIN-stamped report is delivered within 48 hours. View all service pricing →
One revision is included with every report at no extra charge. If your plans change before permit submission, we update the calculations.
Yes — 100% of our reports have been accepted on first submission. Our BCIN-stamped CSA F280 reports comply with OBC 2024 and are accepted by every municipality in Ontario. Find your municipality →
Stop waiting. Get the certified heat loss calculation your Ontario building permit requires — without the 2-week wait.
Drag & drop your floor plans here
PDF, CAD, JPG, PNG — any format works