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Read our privacy policyHello, thank you for reaching out. Yes. Like all gas-fired heating equipment, the Reznor UEZ series performs best when routine maintenance is completed. Recommended service includes inspecting burners, checking the heat exchanger, verifying vent system condition, and confirming condensate drainage remains clear. Regular maintenance helps protect efficiency, safety, and long-term equipment life across all UEZ sizes. If you have additional questions, please feel free to reach out over the phone to our Customer Service line at 1-888-901-5460. Have a great rest of your day.