My going to be second boiler (gass boiler) has a circulator that is operated seperate of the boiler control. The circulator operates the entire three zones of the house and is turned on by a 110 strap on aqustat straped to the outflow of the gas boiler. My EKO is plumbed with a circular loop with closely spaced t's on the return manifold of the gas boiler. I want to know how to control this circulator to run with the eko yet still work with the existing gas boiler. The circulator on the eko (taco007) i gues will plug directly to the RK-2001 controler. I'm asuming the conection on the back of the eko controler gives of 110V that powers the circulator. Correct me if wrong. My question is how do I also send power to the circulator on the gas boiler to operate my system.