Rinnai Tankless Water Heater with Recirculating Pump

Rinnai Tankless Water Heater with Recirculating Pump

  • Rinnai undoubtedly creates some of the best tankless waters you can use today. In this article, we’ll focus on a particular Rinnai tankless water heater with recirculating pump that will help you save much money in the long run.

Tankless water heaters are growing so popular that it’s no longer a matter of whether one needs one anymore; it’s now a matter of which model one needs to get. Modern or not modern, the world is growing increasingly frustrated with tank-style water heaters that not only cost a lot of money but also take up a great deal of space in the bathroom, no thanks to their bulkiness.

Many mainstream water heater brands are now making that not-so-easy but necessary transition into the other side, the glaringly brighter side, of the water heater market. Rinnai is one of these many brands.

As a Japanese company focusing solely on energy-efficient tankless water heaters, it’s no surprise that Rinnai is one of the leading brands in the tankless water heater market. The brand’s effort to prioritize energy efficiency has made it one of the go-to brands for many homeowners as long as energy-efficient tankless water heaters are concerned.

One of Rinnai’s product lines is the tankless water heater with recirculating pump. This product embodies all of Rinnai’s core values as a brand, and that’s what we’re looking at today. The particular product we’ll focus on is the Rinnai RSC199iN Smart-Circ Condensing Gas Tankless Water Heater.

Why Rinnai?

We know you’re thinking, “Why Rianni?” With many good brands to choose from, what makes Rinnai stand out? If you think energy-efficient tankless water heaters are the best, then you should consider Rinnai. Rinnai is pioneering the latest feature you can get in any tankless water heater: recirculation.

This is when the tankless water heater learns your hot water usage pattern and uses that knowledge to only heat water when needed. This way, you don’t have to wait a few minutes for your water to get hot. This is one of the most energy-efficient ways to use a tankless water heater.

With a 100-year-long experience in the industry, it’s safe to say that Rinnai has seen it all. Surviving a century of stiff competition from other brands and even outliving some is enough reason to trust the brand.

Recirculation technology is the new big thing in the tankless water heater market. Considering how much energy they use, it helps save energy during low-use times, which is a big deal. So let’s find out is Rinnai Tankless Water Heater with Recirculating Pump is worth buying.

Rinnai RSC199iN Smart-Circ Condensing Gas Water Heater

Rinnai Tankless Water Heater with Recirculating Pump

A few Rinnai products were looked at, but this one stood out, so it’s safe to say it’s the best of the pack. It is the best in terms of functionality and energy efficiency. “This isn’t our first tankless water heater, but I think it may be the best! Included is a circulation valve that allows the heater to provide hot water in seconds. The family loves it,” a happy user said.

If the reviews are anything to go by, this is one of the best tankless water heaters on the market right now. Another happy user said, “Very good product. Solid materials and quiet operation.” This is obviously a good product and is priced just below the $2000 mark, making it an affordable choice for a product in its class.

Let’s explore some of this product’s best features below;

Compact design

Small enough to fit in a small suitcase, but don’t be fooled by its compact size. The RSC199iN provides up to 11 gallons per minute and can serve up to 7 fixtures at once. Even with its compact design, this unit comes with several venting options. This unit can conveniently fit in regardless of how small your space is. This means you don’t have to worry about the unit taking up much space, as your home will have more usable areas.

Energy-saving benefits

One of the key selling points of the Rinnai RSC199iN is its energy-saving capabilities. This heater is built with high-efficiency non-condensing technology that operates at an Energy Factor (EF) of 0.93 for natural gas or propane, which far exceeds many traditional water heaters.

Recirculation pump

The built-in recirculation pump is another feature that enhances comfort, saves energy, and reduces water waste. This system circulates hot water through your pipes to ensure that hot water is available quickly when you turn on a tap. It means less water wasted waiting for the water to heat up and less energy wasted keeping a large tank of water hot all the time.

Some recirculation systems come with a timer that allows you to program when you want hot water available, such as during peak usage times in the morning and evening. Others come with a thermostat that only circulates water when it drops below a certain temperature. Regardless of your choice, the built-in recirculation pump is valuable to any home water system.

Digital controls

The Rinnai RSC199iN has digital controls allowing you to control the unit’s settings precisely. You can set the temperature to your preference, avoiding energy waste from overheating water. The unit also includes an error code indicator, ensuring issues are detected early and minimizing wasteful operations.

Long life span

Rinnai tankless water heaters are designed to last up to 20 years, much longer than the average tank-type water heater. This reduces the environmental impact of manufacturing and disposing of the heater, making it a more sustainable choice in the long term. The longevity of Rinnai tankless water heaters is due to their durable and efficient design. Unlike traditional tank-type water heaters, which store and constantly heat a large volume of water, tankless water heaters heat water on demand as it flows through the unit. This eliminates standby energy loss and reduces the risk of leaks and water damage.

Is it Worth the Money?

With other products in its class priced well above $2000, having the Rinnai RSC199iN available below $2000 is truly a miracle. It is a bargain for a tankless water heater you can get over 20 years out of if properly maintained. With energy-saving features and a compact design, there’s only a handful of tankless water heaters you could rate above the Rinnai RSC199iN for price or performance.


Recirculation technology is the newest energy-saving feature in the tankless water heater market. However, you won’t always find it in most available products. Rinnai has done a great job including it in its newest products, even though people may find the price a little outlandish. As mentioned earlier, this unit is worth every penny if you can manage to spend the money. Reviews show you will get many years out of this product if you use it well. The warranty is solid, and the performance is excellent.

FAQs for Rinnai Tankless Water Heater with Recirculating Pump:

What is the role of the recirculation pump in RSC199iN?

The built-in recirculation pump circulates hot water through your pipes to ensure that hot water is readily available when you turn on a tap. This feature reduces both water and energy waste.

How does this unit save energy compared to traditional water heaters?

The Rinnai RSC199iN uses non-condensing technology, which captures and uses the heat from exhaust gases to heat your water. This means less energy is wasted compared to traditional water heaters.

What is the purpose of digital controls in the RSC199iN?

The digital controls incorporated in the Rinnai RSC199iN are crucial in facilitating energy efficiency and user control. They allow users to manage and adjust the unit’s settings to meet their precise needs, such as setting an exact temperature for the water.

What type of fuel does the Rinnai RSC199iN use?

The Rinnai RSC199iN runs on natural gas, which is often more efficient and less polluting than electricity. This makes it a more environmentally friendly choice for your home heating needs.

How long will the Rinnai RSC199iN last?

Rinnai tankless water heaters are designed to last up to 20 years, much longer than the average tank-type water heater. This reduces the environmental impact of manufacturing and disposing of the heater.