How long does a tankless water heater last?
How long does a tankless water heater last? The life expectancy (or useful lifespan) of a Rinnai tankless water heater is up to 20 years. Actual life is impacted by water quality, usage and proper maintenance. For comparison, a tankless water heater lasts about twice as long as a tank water heater, making them a better value in the long run.
What is the life expectancy of a Rinnai tankless hot water heater?
The estimated life expectancy of a Rinnai tankless hot water heater is twice as long as that of a traditional tank.* Actual performance will vary depending on water quality, usage rates, environmental conditions and regular maintenance.
Where can I place my Rinnai tankless water heater?
Because of their small size, you can place Rinnai tankless water heaters in locations that you could never place a tank. If you have your Rinnai hot water heater close to your primary points of use—such as the kitchen or master bath—you’ll drastically reduce the wait time. Does the Rinnai tankless unit modulate when recharging the storage tank?
How do you know when a tankless water heater needs to be replaced?
What to look for:Leaks: If your water heater is leaking, it must be replaced immediately. ... Knocking Noises: Loud noises are an indication of sediment buildup. ... Rusty Water: Water discoloration is a clear sign your unit is underperforming.More items...
What is the downside of a tankless water heater?
In addition to high upfront costs, tankless water heaters have several other disadvantages compared to tank-style water heaters: they take longer to deliver hot water. the water temperature is inconsistent when multiple outlets are on simultaneously. they cannot provide hot water during a power outage.
How often do tankless water heaters need to be replaced?
When to Replace a Tankless Water Heater. Annual or semi-annual maintenance is important for a tankless water heater, but it won't make the system last forever. Eventually you will need to replace the appliance with a new one, though a tankless system may last more than 20 years.
What is the most common problems with tankless water heaters?
Here are six of the most common problems and maintenance concerns for tankless water heaters:Mineral Buildup.System Overload.Cold Water Sandwich.Air Supply or Exhaust Blockage.Ignition Failure.Flame Failure.
Do tankless water heaters increase electric bill?
Nonetheless, according to the Department of Energy, tankless units do spend less electricity than conventional water heaters that run of electricity. To reduce the electricity bill as much as possible, look for the Energy Star label.
What are the best tankless water heaters?
Our Verdict. One of the best options overall for whole-household use is the Rinnai tankless water heater that uses natural gas, with a 199,000 BTU power input and an Energy Star-certified design. Alternatively, for a budget-friendly option that serves one or two people, consider the Rheem tankless water heater.
How often should I flush my Rinnai tankless water heater?
once a yearOver time, a tankless water heater may accumulate mineral build up which can erode the walls inside your tank's heating chamber. To properly maintain and clean your tankless water heater, it's important to flush those mineral deposits at least once a year.
Is there maintenance needed on a tankless water heater?
The most complicated and time-consuming tankless water heater maintenance is typically descaling and flushing out the unit. Even with the inline water filter, lime and calcium deposits can build up inside the tankless system. If you have hard water, it's a good idea to descale and flush the unit once a year.
How much should it cost to replace a tankless water heater?
The national average for tankless water heater installation cost is around $2,800. Depending on the model, the units themselves usually cost between $500 and $2,000, with installation adding another $500 to $1,500. However, for large or specialty units, you may pay as much as $6,600 in total costs.
Why does my Rinnai tankless water heater go cold?
Your tankless water heater will feel cold to the touch when the heater unit and pumps are in the rest state and not heating water. There's nothing to worry about. As long as everything is working properly (e.g. you have hot water on demand), there is no cause for concern.
What temperature should a tankless water heater be set at?
You'll want to shoot for 100-115 degrees Fahrenheit for your water to be heated. If your groundwater temperature is 60 degrees and you want your shower at 110 degrees, that's going to be a 50-degree rise.
Why do tankless water heaters fail?
Gas ignition problems. A tankless system can also fail in the ways that a standard gas-powered water heater or furnace can fail. The gas jets can become dirty and fail to ignite fully—or ignite at all. If the electronic ignition system breaks, the water heater won't come on and you'll end up with no hot water at all.
Is a tankless water heater better than a regular water heater?
According to Energy.gov, “For homes that use 41 gallons or less of hot water daily, demand (or tankless) water heaters can be 24% to 34% more energy efficient than conventional storage tank water heaters.” Tankless water heaters (if gas-fired) will save homeowners over $100 annually the longer they remain in service.
Should I replace my hot water heater with a tankless?
Using a tankless water heater can reduce these costs by up to 50 percent, for an average annual savings of $80. They are durable and less likely to fail, causing potentially catastrophic flooding in your home. Tankless units have an average lifespan about twice that of conventional water heaters — 20 years or more.
Can you run out of hot water with a tankless water heater?
Yes, tankless water heaters can provide an unlimited hot water supply, and they can never run out of hot water.
What are pros and cons of tankless water heaters?
Are Tankless Water Heaters Worth It? 10 Pros and ConsPro #1: Instant Hot Water. ... Con #1: Inconsistent Temperatures. ... Pro #2: Longer Lifespan. ... Con #2: Higher Initial Cost. ... Pro #3: Lower Month-to-Month Costs. ... Con #3: Limited Hot Water Supply. ... Pro #4: Space Savings. ... Con #4: Additional Equipment is Often Necessary.More items...•
Why don’t I have hot water as soon as I turn on the tap?
Without a Rinnai recirculation system, it’s normal to have a slight 1 - 2 second temperature drop as the water in the pipes clears the line. The wa...
Why do I have to wait to get hot water after turning on the tap?
The wait time to get hot water is primarily determined by the distance between the water heater and the point of use. Rinnai tankless hot water hea...
Does the Rinnai tankless unit modulate when recharging the storage tank?
Yes, the CU199 modulates its input based on the Delta T (change in temperature).
Why does the fan continue to run after I turn off the hot water tap?
By design, the fan will keep running for a short time after the flow of water stops. This helps ensure constant water temperatures during rapid sta...
How does cold weather affect my tankless water heater?
A Rinnai tankless water heater features built-in freeze protection. When protected from direct wind exposure and connected to both power and gas, t...
Why does my tankless water heater go cold?
Your tankless water heater will feel cold to the touch when the heater unit and pumps are in the rest state and not heating water. There’s nothing...
What are these error codes?
Error codes vary based on product. Please contact Rinnai or your local installer to troubleshoot the codes and find the root cause. Send us a mess...
I pressed the push button and the pump didn’t turn on.
*Is the push button paired properly? You can check by pressing the push button. Does the LED on the module fash green? If yes, then the push button...
Why is white smoke coming out of the exhaust
Don’t worry: That “smoke” is likely just water vapor. During cold weather, when the exhaust temperature is much hotter than the outside air, the ex...
How long does it take for a Rinnai water heater to get hot?
The wait time to get hot water is primarily determined by the distance between the water heater and the point of use. Rinnai tankless hot water heaters produce hot water within just a few seconds of first water flow from a cold start. However, all the cold water must be purged out of the pipe between the hot water heater and your point of use. For example, if your kitchen sink is 50 feet from the hot water heater and the water flow rate is one gallon per minute, it will take 90 seconds or so for hot water to reach your sink.
What size gas line does a Rinnai tankless water heater use?
What size gas line does a Rinnai Tankless Water Heater require? Rinnai Tankless Water Heaters are designed to provide maximum performance and efficiency using either a 3/4" or 1/2" gas line, as long as sufficient gas flow is available. An undersized gas line can stress a tankless system and possibly reduce its lifespan, all Rinnai tankless water heaters are equipped with technology that safely ceases operation if they detect an inadequate gas flow. This innovative feature safeguards the unit from compromising performance and efficiency.
Why does my tankless water heater feel cold?
Your tankless water heater will feel cold to the touch when the heater unit and pumps are in the rest state and not heating water. There’s nothing to worry about. As long as everything is working properly (e.g. you have hot water on demand), there is no cause for concern.
What is a Rinnai hydronic air handler?
The Rinnai Hydronic Air Handler System easily integrates with select tankless water heaters or boilers to deliver energy-efficient warmth.
What is a Rinnai direct vent furnace?
Rinnai Direct Vent Furnaces use modulating technology to create energy-efficient warmth for the whole home.
How to contact Rinnai?
Please contact Rinnai or your local installer to troubleshoot the codes and find the root cause. Send us a message or call our Customer Care team at 1-800-621-9419. We are available Monday through Friday, 8 a.m. to 8 p.m. EST.
Does a Rinnai water heater freeze?
A Rinnai tankless water heater features built-in freeze protection. When protected from direct wind exposure and connected to both power and gas, the water heater offers freeze protection down to -22°F (-30°C) for indoor models or as cold as -4°F (-20°C) for outdoor models. Though the water heater itself is protected from freezing, plumbing and valves to the water heater are not. Therefore, pipes and valves going to the water heater must be heat traced and insulated to protect them from freezing.
What is better than a tankless water heater?
Better Than a Tank 1 Tankless water heaters last up to twice as long as tanks 2 Save energy by heating water only when it's needed 3 Avoid costly replacement events with a maintainable and repairable tankless unit
What does the flame output do on a water heater?
Water exits the unit and travels to the water fixture where it is needed. Flame output adjusts as needed to maintain water temperature during use. With usage complete, the flame turns off and water stops flowing.
Why is recirculating hot water important?
Waiting for hot water can be frustrating, costly, and wasteful. Recirculating technology eliminates the wait, so hot water is always at the ready. Our technology permits this even if your home does not have a dedicated return line.
What is a second heat exchanger?
With a second heat exchanger, exhaust is looped back into the system to heat water more efficiently. Higher heater cost, though the venting materials are more flexible including 2” PVC. Higher energy efficiency. Must drain condensation at the bottom of the heater.
Can a tankless water heater work with propane?
Tankless water heaters can work with both natural gas and propane heat sources. If your home runs on all-electric heat, tankless may still be a viable option. Contact a Rinnai PRO for further assistance. Connect with a PRO.
Does a tankless water heater use energy?
This results in a limitless hot water supply and little to no wasted energy usage.
Is it easier to repair a tankless water heater than a tankless water heater?
Tankless water heaters are easier to repair than tanks, often eliminating the need to replace the unit. And many offer extended, comprehensive warranties.
