HVAC and Insulation From a Working Tech
Dana Sorensen · June 26, 2026
47 ppm and climbing — that’s what my combustion analyzer read the second I cracked open the burner compartment on Karen’s furnace, and the hairline crack running across the heat exchanger explained the rest. She’d spent the previous night fighting a headache and a queasy stomach, blaming bad takeout, before finally drifting back to sleep … Read more
Dana Sorensen · June 24, 2026
Spring thaw always does the same thing to a house: windows crack open after months sealed tight, and that first rush of fresh air has a way of exposing exactly how stagnant everything got while they were shut. I was mid-audit at a house going through that exact transition last spring — blower door test … Read more
Dana Sorensen · June 20, 2026
Late one February afternoon, I was down in my own basement doing the same furnace tune-up I run on my own system every year — nothing on my personal checklist hinted that anything was wrong. My wife mentioned, almost in passing, that the kids had been dragging all winter — headaches some mornings, tired even … Read more