As for humidification, I do know that a cold water aprilaire 700 installed in the supply plenum will humidify my house under the specified conditions. It simply will not do it efficiently or effectively. The fact that it will work has been confirmed by people much more qualified than you. I'm just not willing to deal with the inefficiencies and the potential problems.
If you are not satisfied with the expertise or advice that you've received at the DIY Chatroom perhaps you could address your concerns with the manufacturer of the 'aprilaire 700' and speak directly to their engineering department. It appears that you have specific application issues that relate directly to the equipment. Why you chose to solicit a public forum for specific engineering advice is bewildering. What I find most dissapointing is your condescending attitude towards some of the forum participants. You had every opportunity to make this an educational discussion but you chose to take the low road and turn it into a confrontation. There are ways to tactfully disagree with someone without insulting their intelligence and to keep the conversation "gentlemanly". All the smarts in the world isn't worth a hill of beans until you learn how to relate to and respect other people.
He with whom neither slander that gradually soaks into the mind, nor statements that startle like a wound in the flesh, are successful may be called intelligent indeed. Confucius
I did not ask for expertise, advice or theory. I asked for simple product information. After my initial query, I found the best available humidifier option I was willing to consider. Although I didn't specify at the time, it is a new aprilaire 700, available to me without the controls. I did check this out, not only with an aprilaire engineer but with a retired HVAC designer/manufacturer and a HVAC contractor who has been in the business for slightly over 35 years. They told me it would indeed humidify my house but at the risk of very inefficient operation and potential problems with my ductboard supply system. This, and practical experience, assured me that it would work but not up to my expectations. I advised any potential readers that I've made a decision.
At that point, your resident expert started chiming in with his unsolicited and incorrect advice. As for the others who chose to become involved, they offered nothing pertinent to any portion of the discussion, only cheap shot remarks so typical of the arrogance displayed by HVAC "experts" who hang out around the various forums.