Customer story · Columbus, OH

“Thirty-four degrees and a near miss”

An Ohio attached-garage household used ThermalTrace history and a 34°F alert to catch a drafty door seal before supply lines iced.

Blue PEX and copper water lines with valves in a basement ceiling
Supply lines in basements and crawlspaces are the freeze risk that history charts prove. Photo: Tomwsulcer. CC0

The setup

  • Arduino + DHT22 on a shelf above the water heater in the attached garage
  • Free plan email alerts at 34°F while evaluating; upgraded to Member for CSV
  • Compared indoor garage vs outdoor weather on the dashboard

Timeline

  1. Week 1: Alerts fired on clear nights; owner assumed ‘just cold air.’
  2. Week 2: CSV export showed the same corner dipping first every time.
  3. Week 3: Weatherstripped the door; nights stayed above threshold.

“History showed the cold corner every clear night”

Homeowner, Columbus, OH (name withheld)

What happened

The alert was the tip; history was the proof. Fixing the seal cost less than one thawed-pipe deductible.

Typical Pro trial → Member or Pro subscription after winter. Your results depend on sensor placement and alert thresholds.

Story FAQ

Was Free enough?

Free caught the problem with email. Member CSV made the cold-corner pattern obvious enough to fix the door.

Attached garages still freeze?

Yes, especially against exterior walls and leaky doors. ‘Attached’ is not the same as ‘conditioned.’

Try it on your space

Start free with live charts, email alerts, and one family live share link. Upgrade when you want CSV history (Member) or SMS, push, and expanded share scopes (Pro: 14-day trial).

See plans & pricing Create free account Compare vs DIY · All customer stories