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Will CarePenguin work with tankless systems water heater next to woman handing the CarePenguin penguin a phone

Will CarePenguin Work with Tankless/On Demand Water Heaters?

Yes, CarePenguin will work with tankless water heaters. CarePenguin works by measuring the temperature of the hot water heater output pipe so both tank-based and tankless water heaters work with CarePenguin.

One thing to know however, is that some higher end models of tankless systems include hot water recirculation systems built in. If this feature is present and activated, then the tankless unit automatically heats water in the hot water lines in the house all the time. This is incompatible with CarePenguin.

You will know this is the case if the analysis graph in the app shows the usage pattern on the left rather than the usage pattern similar to that on the right.

CarePenguin app sensor analysis graph screen recirculation pump data
Abnormal CarePenguin output when a hot water recirculation system is installed and active.
CarePenguin app sensor analysis graph screen normal data
Normal CarePenguin detection when a hot water recirculation system is not present or turned off.