I am working on a complicated heating hot water system, which supplies hot water by boiler (Toa>60F) or by heat recovery chiller (60F<toa<80f). although="" there="" is="" some="" suggestions="" here="" https:="" unmethours.com="" question="" 1742="" ,="" but="" i="" don't="" know="" how="" to="" combine="" it="" with="" a="" boiler.="" does="" anyone="" has="" any="" experience="" or="" suggestions="" can="" offer?="" that="" will="" be="" very="" helpful!="" thank="" you!<="" p="">