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 -20°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 | -20°C (est.) | 6 | Cloudpermit | None (CPPS may apply) |
Note: Innisfil has no dedicated SB-1 station; -20°C is a defensible estimate (nearest station Barrie -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 -20°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.
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