I rent out a condo that is having some heat problems. I just replaced
the two circulaor pumps (one was bad, figured I'd do both at once.
This is a 2 story condo with two heating zones, 1st floor and second
floor. I'm having a hard time getting hot water to the second floor. I
have bled all the air from the lines and it appears to be free of air.
There are two circulating pumps, both controlled by a separate
thermostat, and no zone valves. I've got a question concerning the
configuration of the circulators. The configuration is this:
water flow--------> | <---------water flow
(return from 1st floor)--circ-----x-----circ--(return from upstairs)
Is this an acceptable configuration? The circulators are actually in
series (plumbing wise), there is a t connector (x) and then straight
into the boiler. It seems that the water flow from one circ pump would
interfere with the flow from the second circ pump. Make any sense?
Doesn't seem right to me, but I'm not a plumber!