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New & revised Troubleshooting Guides
to bring them up to date with latest National Fuel Gas Code. The revised guides:
AIR FOR COMBUSTION $10
GAS PIPE SIZING $6
CARBON MONOXIDE $10
PROCEDURE FOR CHECKING 24 VOLT SYSTEM WITH A METER $5
A brand new guide GAS VALVES $15
I am still working on a revision to the VENTING GUIDE $10
All of these do not include a shipping and handling charge. The charge for Shipping and handling is $5 for an individual guide, two or more is $10.
If you are interested send me an e-mail with your postal mailing address.