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The Lochinvar 100277781 is a state-of-the-art integrated control board specifically designed for Crest FB 751-1251 heating boilers, starting with serial number 4015. This precision-engineered component is crucial for optimal performance and efficiency of your heating system.
This control board is a direct replacement for units beginning with serial number 4015, simplifying maintenance and upgrades without the need for system modifications.
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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