Side-by-side reliability

Google Nest Learning Thermostat 4th gen vs Lennox Lennox 2-stage furnace (7 years old)

Compare reliability signal, data confidence, common failures, typical age, and reported repair cost. Warranty window reference: 60–60 months depending on category.

Model A

Google Nest Learning Thermostat 4th gen

Reliability signal — · Insufficient data · data confidence Very Low

1 failure reports · Insufficient data · Very Low confidence

Most common failure: Repeated warranty replacements for Eco-mode runaway
Typical failure age: 11 mo
Median repair cost: —
Highest reported repair: —

Median months

% mfr warranty

100%

After warranty reports

Avg repair cost

—

Top failure categories

Repeated warranty replacements for Eco-mode runaway1

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Model B

Lennox Lennox 2-stage furnace (7 years old)