Solar thermal water heating

Coordinate collectors, roof, heat exchanger, storage, freeze/overheat protection and backup water heating for Canadian climate.

VERT / GREEN

Estimate hot-water demand, orientation/shading and roof condition before choosing a system.

JAUNE / YELLOW

Year-round operation requires real freeze and overheating protection plus heat-transfer-fluid/exchanger maintenance.

ROUGE / RED

End-of-life roof, uncertain structure, unknown pressurized loop or failed freeze protection: correct/design before installation.

Interactive triage

Roof nearing replacement
Coordinate reroofing before collectors to avoid premature removal. Glycol/heat-exchanger system
Plan fluid maintenance and potable-water separation. No freeze/overheat strategy
Do not install year-round system without designed protection. Known hot-water demand
Use actual profile to size storage and backup.

Useful tools and data

Hot-water profile
Shade/orientation review
Roof/structure plan

What the professional checks

Size collectors/storage
Design freeze/overheat protection
Coordinate backup and potable plumbing

Official sources

Checked 2026-08-22.

Related path

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