Tim Malacarne wrote:Yeah, me again... Jim, there's lots to read on thermosiphoning on the internet. I grew up in a 2 family flat in the city. We had a hot water system, was the most even heat ever. No pump, all thermosiphoning.
Gordon Claridge wrote:Something to think about is that 140degF is 60degC and is right on the borderline for preventing the development of Legionnaires Disease bacteria from breeding in your tank. If your planned operating max temp is going to be 140, this means that a lot of the time the T is likely to be below this, or conversely, there will be days when you do not reach this temp.
You need to look carefully at the longest recommended time a system can be without reaching 140 or above. In some jurisdictions it is a requirement that hot water systems stay above 140, in others 140 needs to be exceeded for a given time in any period of X days (X depends on the jurisdiction).
kent smith wrote:Dale, glad to hear about the maples. Most of our wood lot is covered with maples and I need to thin some out. The crowns are so thick that on a sunny day it is dark and damp while walking around. Maples are the predomenent new growth on our place in the woods, but out in the pasture it is black locus and sumacs.