freetown fred wrote:
Ya gotta understand about whistlenut---Dr phil he ain't
Just a real knowledgable coal burner. Doug & me are trying to work on our social skills-- point being, yep, I think you got the gist of the response.
kstills wrote:I don't want to do that.
The wife lost her job, and money is tight atm.
I take it from your reply that the pump will burn out, so thanks, sort of, for the answer.
http://dev.heatinghelp.com/forum-thread ... -circ-pump
Although it's not considered a good idea...
and I wouldn't recommend that any pump be dead headed for any extended period of time, I have come across a Taco 007 that had been dead headed for 2-1/2 winters, and it was just fine. It's the BIG pumps that you have to worry about. When dead headed, you are pouring a SIGNIFICANT amount of energy into a small amount of water and super heating it. When the pressure is dropped, the water is no longer water, but becomes steam and occupies 1700 times more space than it used to when it was water. I once saw the power head from a Grundfos circulator that had been blown through two sheet rock walls and embedded in a cinder block wall. It can happen, but it takes time and when talking about small circulators is not as critical. Better safe than sorry just the same. ME
It would seem that the problem with burning out the pump would be:
A) the size of the pump (small, it's a Taco 007X variable speed set for low)
B) dwell time of liquid in the pump (~40-60minutes during a heat call)
C) the delta of the water during that time from the frictional energy put into it from the pump
So maybe it can be done in a pinch.