It was necessary to scrutinize each potential option by considering the key factors important for a tankless water heater, including the fuel type, size, flow rate, and the number of fixtures each ...

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Rinnai RX199iN Condensing Smart Sense Tankless Water Heater Rinnai RX130iN Condensing Smart Sense Tankless Water Heater ...

For an input water temperature of 41 F, the output reaches 105 F at a flow rate of 0.67 gallons per minute. By [Lou]’s calculations, that’s a heat transfer to the water of roughly 21,000 BTU ...