Heating and cooling
Clean the HRV core and filters
Twice a year, in October.
What to do
Pull the two filter screens and rinse them, then slide the core out and wash it.
Why it matters
A clogged HRV quietly stops ventilating, which is what was keeping the humidity down. It fails silently — the fan still runs.
What to look for
- The condensate drain runs free and its trap holds water — a blocked one puts water on the floor
Where this comes from
CMHC says check the filters every two months; Habitat p.27 gives no interval. Six months covers the core; rinse the screens whenever they look grey.
Catch it while it’s still maintenance.
Domisura keeps this schedule for your house — dated to when things went in, and reminding you when each task comes round. The record stays with the address when you sell.
Start a record for your homeGeneral guidance, not professional advice. For gas, electricity, structure or water, get a qualified trade.