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National Comfort Institute's Knowledge Base

National Comfort Institute's Knowledge Base is a collection of questions and answers to help NCT members and industry professionals. The knowledge base is open to both NCT members and NCI Online users.

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Each question has an Access Level, NCT Member Only and NCI Online User. NCT Members can view all questions and answers in the knowledge base. NCI Online Users can read NCT Member Only questions but cannot access the answer. NCI Online users can only access NCI Online User level questions. Both NCT Members and NCI Online Users can ask knowledge base questions.

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Even though Knowledge Base questions are answered by both National Comfort Institute and trusted Industry Professionals, all questions and answers must be approved by National comfort Institute.


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Question Category: System Efficiency
NCT Member Only







Question Category: Carbon Monoxide Safety
NCT Member Only

Question: I have a different quandary. This is associated with our latest weather disaster in the Chicago area. Generators in a garage or vented crawl space. In driving around I noticed quite a few generators running in a garage with the doors open. Then as I am cleaning up branches in my own yard. I noticed the neighbor two doors away had a generator in the crawl space of a 100 year old home. This crawl had a window they open during operation. It was about 150 degrees F and wreaked of combustion products. I didn't have my co meter with me so I couldn't check the readings. I told the mom (old lady living there) How dangerous it is and called her son that lives in a different home. He basically told me to shove off. I called the Police they came out and talked to her. He did finally move it.

I am wondering if there are any calculations that show how fast and how much CO can build up in a garage or crawl. Or if there is any printed materials that I can use in situations like this.
- To view, please click on the question.
Asked Date: 08/27/2007




Question Category: Air Balancing
NCT Member Only

Question: Do you have a fan table for .50" variable speed ? - To view, please click on the question.
Asked Date: 08/07/2007






Question Category: Heating
NCI Online User

Question: Do you have anything in writing I can share with my customer about High Low fire or staged equipment? - To view, please click on the question.
Asked Date: 06/12/2007




Question Category: Air Balancing
NCT Member Only

Question: I had someone helping me balance a system. How can I tell if he did it right? - To view, please click on the question.
Asked Date: 04/12/2007






Question Category: Air Balancing
NCT Member Only









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