Just found out our Calgary furnace filter has been in backwards since we moved in 2 winters ago

Karen Campbell · 2026-10-12T00:05:03.503438+00:00

Pulled it out last night and the arrow on the cardboard was pointing INTO the duct, not toward the blower like it should be, which explains the $260 gas bill in January and why the upstairs never gets warm.

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Just found out our Calgary furnace filter has been in backwards since we moved in 2 winters ago | Alberta Homeowners - Free To Speak