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COMPARE RINNAI WATER HEATERS WITH OTHER

Rinnai water heating solutions come in various shapes and sizes. They have numerours types of instant water heaters and hot water heaters that provide the luxury and comfort to customers at affordable price. Below are some of the categories regarding the water heating products available through Rinnai.

Rinnai RL75iN Natural Gas Tankless Water Heater, 7.5 Gallons Per Minute
At 7.5 gallons per minute, the Rinnai RL75iN Gas Tankless Water Heater offers a considerably higher flow rate than any of the others in our top five. According to the manufacturer, BTU output varies from 10,300 to 180,000. This quoted range is actually a more accurate reflection of output than that of other companies who simply quote BTU maximums. The Riannai is also the only water heater on our shortlist to deliver temperature ranges up to 140°F for household installations (the Department of Energy says a maximum of 120 is sufficient for hot showers), and 160°F for commercial installations (an additional controller must be purchased in order to achieve this).

Eccotemp FVI-12-NG High Capacity Gas Tankless Water Heater
The Eccotemp FVI-12-NG Gas Tankless Water Heater has a flow rate of 3.4 GPM and a BTU rating of 74,500. While BTUs are often quoted as "heat,” a BTU is actually the amount of energy needed to cool or heat one pound of water by one degree Fahrenheit. In practical terms, most people find BTUs are good for comparison rather than as a specific measure.
The Eccotemp is designed for small and medium-sized homes. Considering the fact that a shower uses approximately 2 to 2.5 GPM, you can see that the Eccotemp could potentially provide hot water for a kitchen faucet at the same time someone is taking a shower – but not much more than that.
This doesn't mean the Eccotemp is inefficient; it's simply designed for lower-usage households.

Takagi T-KJr2-IN-NG Indoor Tankless Water Heater, Natural Gas

The Takagi T-KJr2-IN-NG Gas Tankless Water Heater's energy output is rated at 140,000 BTUs. Flow rate is quoted at 6.6 GPM.
Takagi's product description rates this model as ideal for small homes, yet the company also boasts that this product has the capacity to supply radiant floor heating. Given that the Ecosmart, at 6 GPM, can run several showers simultaneously, it's reasonable to expect that the Takagi can deliver a similar real-world output.

Stiebel Eltron Tempra 24 Plus Electric Tankless Whole House Water Heater, 240 V, 24 kW
Where the Ecosmart provides two different flow rates based on temperature, the Stiebel Eltron Tempra 24 Plus Electric Tankless Water Heater provides two entire charts: one for 240-volt input and the other for 208-volt input. Using the former, this 24 kW (82,000 BTU) water heater boasts a flow rate of 2.6 GPM at 40°F, rising to a maximum of 5.4 GPM at 75°F. According to the company, the lower output is more than sufficient for a hot shower, while the higher output is suitable for Roman or jacuzzi tubs.