Research & Insights on
Remote HVAC Diagnostics

Plain-language briefs on published field studies about fault detection, remote monitoring and heat pump performance, with links to every original source.

Oct 1, 2026

What Remote Monitoring Revealed About Cold-Climate Heat Pumps

Field studies that logged heat pumps minute by minute found identical models performing very differently, mostly because of installation and settings rather than the…

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Oct 1, 2026

Can Smart Thermostat Data Detect a Refrigerant Problem?

Oak Ridge National Laboratory tested how much remote data can reveal about refrigerant charge. Large undercharge showed up clearly. Small undercharge, the kind…

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Oct 1, 2026

Installation Faults Can Add Up to 40% to HVAC Energy Use

A 2026 field study of 83 recently installed residential systems found that most had at least one installation fault. Combined faults raised cooling energy by up to 40%…

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