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Tommy KellySep 19, 2025
How to troubleshoot high stack temperature in my PEERLESS Boiler?
- WWendy JohnsonSep 22, 2025
If the flue pipe is hot, check the flue temperature and compare it to the values shown in Table 8.5. Also, check for proper gas input and combustion readings, and inspect for a dirty heat exchanger. If the flue pipe is not hot, check the flue sensor and harness.






