VERT / GREEN
Document energy use, existing system and comfort temperatures.
Cold-climate heat pump: load, balance point and backup
Connect heating load, low-temperature capacity, defrost, backup heat and controls instead of choosing only by nominal size.
Important: this tool helps decide what to verify; it does not replace calculations, permits or professional design where required.
JAUNE / YELLOW
Heat-pump output can fall as outdoor temperature drops; backup heat and the balance point must be understood.
ROUGE / RED
No load calculation, unknown low-temperature capacity or uncoordinated backup: do not size by guesswork.
Indicative triage
Useful tools and data
- CSA F280 or equivalent load calculation
- Manufacturer performance tables
- Energy/temperature history
What the professional checks
- Calculate design load and capacity
- Establish balance point and backup
- Commission defrost and controls
Official sources
Sources checked / sources vérifiées: 2026-08-22
Related path
Continue with the right tools
These links connect this page to the next useful checks and decisions without repeating the full content.
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