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The Wall has a powerful search engine that will go all the way back to 2002. Use "quotation marks" around multiple-word searches. RIGHT-CLICK on the results and choose Open Link In New Window so you'll be able to get back to your results. Happy searching!
In fairness to all, we don't discuss pricing on the Wall. Thanks for your cooperation.
My old friend, Jake Myron, who is one of the best steam men in the business just wrote a new book and you can get it here: http://dorrance.stores.yahoo.net/stpeflforhea.html
It covers steam heating in larger buildings. Jake is a master at solving problems in apartment buildings and this book covers it all. He and I prowled a lot of basements when he worked for the New York City Housing Authority and I recommend him to many people as a consultant after he retired from NYC. He's now retired from consulting and living in Florida. This book covers all of his years and it's well worth the price. Highly recommended!