Does the Rinnai RU199iN have a built-in recirculating pump?

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The Rinnai RU199iN Condensing Tankless Hot Water Heater doesn't have a built-in recirculating pump. If you're aiming to cut down on the wait time for hot water, you can pair it with an external pump, thanks to its compatibility and the Circ-Logic feature that lets you schedule or demand hot water recirculation. This can be particularly useful if your home's plumbing layout means long waits for hot water.

From our research, experiences with an external pump do vary. Some folks find it really convenient, enjoying quicker hot water delivery. A few have even used a pump from their old tank heater with success. However, if quick hot water is a big priority for you, Rinnai's RUR series might be worth a look since it has a built-in pump.

Despite missing a built-in pump, the RU199iN is pretty efficient, especially with its high GPM flow rate. If your home's faucets are far from the heater, adding an external pump could be useful for quicker hot water access.

Just keep in mind, getting a pro to handle the installation is a smart move to avoid hiccups and ensure everything runs smoothly.

So, while the RU199iN doesn't have a built-in pump, it's still a solid option for many homes. Think about your plumbing setup and hot water needs to decide if an external pump is necessary.

Hope this helps with your decision on how to get efficient hot water delivery in your place!