Originally Posted By: dhadler This post was automatically imported from our archived forum.
Sean,
I've only seen one of those babies...I couldn't find a date either. The one I saw was a huge monster that I guessed back into the 50's. It was a natural gas unit and was still in good working condition if you can believe that. 
Told the client not to bank on too much more service out of her
-- Darrell Hadler
Five Star Home Inspections
Medicine Hat, Alberta CANADA
Originally Posted By: dbush This post was automatically imported from our archived forum.
Sean, the new nachi store does not have any books and the old store that Todd was referring to has been closed. I would suggest going directly to http://www.prestonguide.com/
Originally Posted By: Kyle Kubs This post was automatically imported from our archived forum.
I bought a Preston’s Guide about a year ago thinking it would be a big help with dating older equipment. I have found it to be mostly useless in this respect. In fact out of the 10-15 times that I have gone to it to look something up only once was it actually listed.(the manufacturer will be there, but the model # I’m looking for won’t be…) For the $80 I paid, the 99% failure rate is just not worth it… In addition, for a home inspector it is even more useless because if by some strange chance the equip. you are looking for is actually listed in the book, it will only tell you the range of years that the model you are looking at was manufactured. Some have one model that was made from 1970 to present, and that’s as far as you can narrow it down. It also only has information up to year 2000 so on any newer equipment you are again lost… One day when I’m out of firewood and don’t feel like going outside I will through this book in my wood stove…
– Those that say it cannot be done should stop interupting those of us who are hard at work, doing it…