Heat Loss Calculation — Simcoe County
BCIN-stamped CSA F280 heat loss calculations and HVAC design for every Simcoe County municipality — sized to the correct local design temperature and formatted for your town building department.
Simcoe County is entirely Climate Zone 6, but design temperatures range from about -23°C on Lake Simcoe (Innisfil) to -25°C at Orillia. Collingwood and Wasaga Beach are -21°C; Midland, Penetanguishene and Tiny are -24°C; Barrie, Oro-Medonte are -24°C. All are colder than the Toronto/GTA assumption (-18°C). We deliver BCIN-stamped CSA F280 reports for any Simcoe County town from $395, in 48 hours.
Design temperatures by municipality (Zone 6)
Under OBC 9.33.2.2, your CSA F280 must use your town official January 2.5% heating design temperature from Supplementary Standard SB-1. Simcoe County spans a real range — using a neighbouring town value (or the GTA -18°C) is the most common reason reports are returned. Confirm yours with our free design temperature lookup.
| Municipality | Design Temp (2.5%) | Zone | Permit Portal | Pre-Conditions |
|---|---|---|---|---|
| Barrie | -24°C | 6 | APLI portal | None for standard residential |
| Oro-Medonte | -24°C | 6 | Cloudpermit | Zoning Certificate first |
| Orillia | -25°C | 6 | e-Permit | Zoning Certificate first |
| Collingwood | -21°C | 6 | Counter or email | None for standard residential |
| Wasaga Beach | -21°C | 6 | CityView portal | Road Occupation Permit |
| Midland | -24°C | 6 | Cloudpermit | Planning sign-off first |
| Penetanguishene | -24°C | 6 | Cloudpermit | Planning sign-off first |
| Tiny Township | -24°C | 6 | Cloudpermit | None for standard residential |
| Innisfil | -23°C (est.) | 6 | Cloudpermit | None (CPPS may apply) |
Note: Innisfil has no dedicated SB-1 station; we use -23°C, matching nearby Bradford and Alliston (Barrie is -24°C) — we confirm the appropriate value per project. Other Simcoe townships (Springwater, Severn, Ramara, Essa, Clearview, New Tecumseth, Bradford West Gwillimbury, Adjala-Tosorontio, Tay) fall within this -20°C to -25°C Zone 6 range; we verify the exact station value for your site.
What a Simcoe County permit package needs
A complete package includes a CSA F280 heat loss report at your town design temperature, mechanical drawings, the MVDS ventilation summary (mandatory under OBC 2024), and the Schedule 1 designer declaration — every page BCIN-stamped. The County of Simcoe does not issue residential building permits; each lower-tier municipality runs its own building department (the portals above), so we format the submission for your specific town.
Dedicated Simcoe County pages
Simcoe County Heat Loss — FAQ
What design temperature applies in Simcoe County?
It varies by town within Climate Zone 6: about -23°C at Innisfil, -21°C at Collingwood and Wasaga Beach, -24°C at Barrie, Oro-Medonte, Midland, Penetanguishene and Tiny, and -25°C at Orillia. All are colder than the Toronto/GTA -18°C.
Does the County of Simcoe issue building permits?
No. Each lower-tier municipality runs its own building department — Barrie, Orillia, Collingwood, Wasaga Beach, Midland, Penetanguishene, Tiny, Oro-Medonte, Innisfil and the surrounding townships. We format your package for the correct town portal.
How much, and how fast?
CSA F280 reports start at $395, BCIN-stamped, delivered in 48 hours. A full HVAC design package with mechanical drawings, MVDS and Schedule 1 starts at $695.
Why does Orillia differ from Collingwood?
Georgian Bay moderates Collingwood and Wasaga Beach to -21°C, while inland Orillia reaches -25°C. Sizing equipment on the wrong town value undersizes (or oversizes) the system, which is why the SB-1 value for your exact site matters.
Building anywhere in Simcoe County? Report in 48 hours.
Upload your plans and we confirm your town SB-1 design temperature, produce the BCIN-stamped CSA F280 and full permit package, and format it for your municipality.
Order a ReportGet a Free QuoteHeat loss in Simcoe County: what changes the numbers
Simcoe County does not issue building permits itself. Each local municipality in the county, plus the separate cities of Barrie and Orillia, runs its own building department. So the right design temperature and the right examiner depend on exactly where your lot is.
Across the county the design temperature runs from about -21 C at Collingwood and -23 C in the south to -25 C at Orillia. That is a four-degree spread on one county map, and it changes the size of the equipment. We look up your exact location, not a county average.
Simcoe has every kind of project: new subdivisions, rural custom homes on propane, cottage conversions, farm houses, and basement apartments. The calculation method is the same CSA F280 for all of them. The inputs are what change.
What to send us
- The lot address or municipality
- Drawings or a sketch with room sizes
- Window sizes and type
- Fuel type and any existing equipment
Why the right inputs matter
The heat loss sets the size of your furnace, heat pump or boiler, and the size of every duct or loop. If the inputs are guessed, everything after it is a guess too. Too big wastes money and short-cycles. Too small leaves cold rooms on the coldest nights. Get the inputs right once and the rest of the job follows.
Ready to start? Get a BCIN-stamped heat loss report, or check what a heat loss costs first.
Upload your floor plans and we deliver a BCIN-stamped CSA F280 heat loss report from $395, or the complete HVAC permit package — mechanical drawings, MVDS, Schedule 1, BCIN stamp on every page — from $695. Delivered in 48 hours, accepted by every Ontario building department. Free quote within 24 hours, no obligation.
- CSA F280 at your municipality’s design temperature
- MVDS & Schedule 1 included
- BCIN stamp on every page
- 48-hour delivery, province-wide
- Free quote in 24 hours — or call 705-533-1633