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Can I use a Stiebel Eltron Tempra tankless water heater with my radiant floor heating system?

The manufacturer does not recommend using the Stiebel Eltron Tempra Series for closed-loop radiant heating applications unless they have been modified. The HydroShark® 3 series of electric modulating micro-boilers are designed specifically for radiant floor applications. More information on the HydroShark systems can be found at

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