I have a tarm solo 40 tied into a oil fired buderus boiler. All the zones are going through the oil boiler, just as if there were no wood boiler even there. The way I understand how it was plumbed in is that the termovar keeps circulating the water between the tarm and the buderus until the water temperature reaches 140. At that point the circulator shuts down. Is there a different way that this shouldve been done? Someone recently saw how it was tied in together and said there may have been a better way to do this.