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The AO Smith 100109944 is an ignition control board designed for use with BTN and BTR series gas water heaters. This control board is essential for managing the ignition sequence and overall functionality of the water heater.
This ignition control board is reliable and straightforward to install, making it suitable for both residential and commercial use. Its design supports efficient operation and safety for your gas water heater.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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