I often compare hydronic systems designs that are common in North America with typical European equivalents. Sometimes those comparisons reveal details that would be beneficial in either market, but are not “traditional” in one market or the other.
One example is the use of a variable speed injection circulator as a mixing assembly in thousands of North American hydronic heating systems. I’ve yet to see this technique used in European system, where mixing is almost always done using 3-way or 4-way motorized mixing valves. Either approach can work, and they both have strengths and limitations. System designers who are familiar with both approaches are equipped to select the one that’s best suited to a specific situation.
