The product is designated as having a Hydronic Heating system but no boiler has been specified. The boiler input is required when modeling Hydronic systems.
If you did not intend to model a Hydronic Heating system, navigate to the System level of the tree, and click on the Residential tab. Change the selection for the Hydronic Space Heating system to “None”.
If you did intend to model a Hydronic Heating system, navigate to the Plant level of the tree. If the system will be using a dedicated boiler, select a boiler from the library in the Heating Hot Water tab. If the system is a Combined Hydronic system (one that uses a common boiler for both space heating and domestic hot water), select a DHW boiler from the Domestic Hot Water tab.
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