Dan Ringo
AUTHOR

Dan Ringo

Study Guides & Test Preparation Engineering Personal Development
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I enjoy writing about life, love and hope as well as technical writing on heating, ventilation, air-conditioning and refrigeration. My first book was the #1 Seller for four straight weeks on Amazon and I have released two other technical training manuals one of which is quickly garnering attention.
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The Best Boiler Operator Exam Prep Course

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    • A Collection of Essays on Improving Facilities Management in K12 Settings
    • By: Dan Ringo
    • Narrated by: Larissa Marten
    • Length: 1 hr and 35 mins
    • Release date: 06-18-19
    • Language: English
    • 2.5 out of 5 stars 2 ratings

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