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Expert Profile: Fred Weldin

Expertise:  All aspects of International Mechanical Code and International Fuel Gas Code. I'm taking a break from All Experts; you can reach me through the "Contact Us" link at askweldin.com.

Experience in the area
I now troubleshoot existing H&AC installations and design H&AC systems and oversee their installations. I have 23 years experience as a H&AC contractor, and I've worked with the tools as a plumber-pipefitter.

Organizations
ASHRAE, ICC, NSPE.

Education/Credentials
B of ME, numerous factory schools (York, Honeywell, etc.) and Code seminars.

Awards and Honors
Certified as a Mechanical Code Construction Inspector. Currently certified as an expert here, under H&AC....

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Recent Answers from Fred Weldin
2008-07-21  Mechanical issues... Duke:You'll have to go to your builder (you might also try the local mechanical Inspector); the electrician is at fault for restricting airflow through the ducts (ADC requires their round shape to be maintained)...
2008-07-17  Mechanical issues... Duke: Which came first, the duct or the wiring? I don't know of any Code requirement that would prohibit the installation. The workmanship does violate the intent of the Industry Standard for Installation...
2008-06-11  gas furnace in the garage Tamara: There must be a tightly sealed return duct from the furnace to the return grille in the closet wall (That's for any furnace room, not just those in garages). If it's just the furnace return...
2008-06-08  Fuel gas line to the garage Michael: You're going to need a contractor at some point, so it might be good to get one involved now: Neither the heater nor the gas pipe are DIY, you need a permit and inspection for both. You should...
2008-06-02  followup email Michelle: Still working on askweldin, spent some time today. Using Yahoo hosting/composing. It'll be a while. I'd like to know about the second floor return ductwork: 1. Size of return grille (that's...
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