The Tank › Getting ready for 1st new tank(s) since dip tube fiasco › Reply To: Getting ready for 1st new tank(s) since dip tube fiasco
On supplying the humidifier with hot water – first, I must admit that I may be guilty of “we’ve always done it that way” syndrome since the plumber who did the original construction plumbed it that way. However, I do know for a fact that warm water is absorbed far more readily into a passing air stream than cold water is.
As it happens I have intimate knowledge of CPAP systems which some folks use to force their airways to stay open while sleeping (the most common treatment for sleep apnea). A vital part of any CPAP system is a small humidifier that the forced air stream passes through on the way to the patient. Most of these humidifiers are heated so that they can be used with the heater on or with it off. When the heater is on, many times more humidity is added to the air stream – and that’s only from raising the water temperature a few degrees.
Now, whether any of that makes any practical difference in the case of a whole-house humidifier, I don’t know. It would be nice to have some real test results on this point, as you are correct that it’s using (and wasting!) a fair amount of heated water over the course of a winter season. Any professional plumbers or HVAC guys on this board, please chime in with your experiences on this point.
As to the reasoning for two tanks – first, I’ve lived in this immediate area for all of my 47 years, and have gotten to know (based on the water hardness here, etc.) when a heater is on the way out – and this one is. Second, this will obviously be a large expense and right now I can do it financially; I don’t know if that will be the case 6 months or a year from now. And third, the relocation will mean having to make some changes to the flue ducting, and it would seem to make sense to do that all at once.
From a financial perspective, the current tank didn’t cost me anything because of the dip tube mess. So I’m not really out anything on that. At least, that’s the logic my wife would use. 😉
I appreciate your input.