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  1. Rinnai SENSEI™ RU199iN  Super High Efficiency Plus Tankless Gas Water Heater
    Rinnai SENSEI™ RU199iN Super High Efficiency Plus Tankless Gas Water Heater
    Model: RU199iN
    Suggested Retail $2,473.00 Your Low Price Special Price $1,854.74
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Enjoy having hot water on demand with a new tankless water heater from the top supplier in the business. Whether you’re looking for an electric tankless water heater or a tankless gas water heater, we have the best prices – guaranteed. Also, get free shipping on most items and same-day order processing. We carry the top five brands in the industry: Bosch, Eemax, Rheem, State Water Heaters, and Triangle Tube.

Not only will you save money on the initial purchase of an electric tankless hot water heater or gas tankless hot water heater, but you will also save on energy costs. Our units run at 96 to 98 percent efficiency, because they don’t produce or maintain hot water that’s not needed.

Tankless water heaters will heat water directly, without the use of a storage tank. When water is introduced into the tankless water heater, the water travels through a pipe that is adjacent to a heating element (electric) or burner (gas or propane). The water is heated and sent on to where it is needed.

The flow rate on medium-sized tankless water heaters is around two to five gallons per minute, depending on the type. Gas tankless water heaters produce a better flow rate than an electric one. Primarily, a tankless water heater performs best when dispensed at one point at a time. It is not meant for multiple, simultaneous users.

Energy Savings

For homes that typically use 41 gallons or less of water daily, tankless water heaters are 24 to 34 percent more energy efficient than traditional water heaters. Even homes with higher hot water usage can see energy savings of 8 to 14 percent over traditional water heaters.

Our Brands


Rheem tankless water heaters produce hot water that will keep up with demand, drawing from the same technology that made Rheem a leader in the water heater industry.

Flow Rates – Electric


Bosch electric tankless water heaters have all earned an EPA Energy Star certification, and come in a variety of sizes, making it feasible to have multiple units throughout the house.

Flow Rates – Electric*


Eemax’s LaVAdvantage Series under the sink model uses a microprocessor for temperature accuracy. It mounts in any orientation as space allows and fits in cramped quarters.

State Water Heaters

With amazing efficiency, State Water Heaters’ line of gas and propane tankless water heaters produce hot water at a rate that can support multi-bathroom houses, even in northern climates. All their models in our inventory have earned Energy Star ratings, thanks in part to a copper heat exchanger and overheating protection.

Triangle Tube

Triangle Tube tankless water heaters can produce 120° water at four gallons per minute and never lag behind. A stainless steel water tube heat exchanger accounts for the rapid heating while maintaining superb energy efficiency with quiet operation.

An innovative gas leak detector and automatic shutoff system helps ensure your family’s safety.

Order With Confidence

We offer the finest product support available. If you need additional information, advice, or assistance with your order, contact a customer service representative. has over 8,000 verified customer reviews with an average rating of 4.8 out of 5 stars.

Why Buy From Us?

Customer Satisfaction

Our dedicated staff works hard to ensure that all orders are handled quickly and efficiently to ensure that you get what you ordered as quickly as possible.


We provide a secure online shopping experience to protect your information. We also provide the option to checkout with PayPal to allow you to use a checkout service you are familiar with.

Save Money

We provide you great prices so you can save your money for the more important things in your life.

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