Caroline Hazard

Company name: CHH Consulting

Position: Principal

Caroline Hazard is the Principal at CHH Consulting. She has over 20 years of experience in researching, designing, and implementing sustainable energy programs and practices. Her recent projects have focused on the impact of HVAC monitoring tools to optimize occupant comfort and system performance.

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The Case For Pulling The Blower Housing

When I started in the trade in 1999, there were still many oilable blower motors in service. As part of the maintenance, we would remove the housing and oil the motor. We would also vacuum the motor and wipe it down. Before you pull the blower, shut off the power at the breaker or disconnect, […]

The Surefire Way to Get a Blower Wheel Off

I’ve always opposed the practice of grabbing a hub puller as the first method of removing a blower. The video below by Brad Hicks with HVAC in SC on YouTube demonstrates the exact method I use to safely remove a blower wheel without damaging anything. Thanks, Brad! The Steps Kill the power. Pull the blower […]

Tech, Mechanic, or Craftsman

Put three good tradespeople in front of the same problem, and you may see three different kinds of enthusiasm. One wants to understand why the system behaves that way. Another wants to get the failed part out and make the repair. The third is already thinking about the layout, access, and details that will make […]

The Devil is in the Data

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