The main disadvantage of tankless water heaters is their upfront cost (unit and installation) is significantly higher than tank-style heaters. Including installation, tankless water heaters cost 3 times more than tank-style water heaters on average.
Subsequently, are electric tankless water heaters condensing?
Gas-fired tankless systems can be designated as either “condensing” or “non-condensing.” Condensing tankless water heaters can achieve efficiencies of up to 98%, while non-condensing water heaters have a maximum efficiency of about 80%.
Also to know is, are Navien tankless water heaters good?
The Navien water heaters are some of the greatest on the market today. Tankless water heaters provide a continuous supply of hot water, and they use about as much energy as a light bulb. Navien tankless gas water heaters are well-known for their reliability and efficiency.
Are Rheem gas water heaters good?
Rheem is a good, mid-level water heater brand that’s not too expensive. Its reputation for manufacturing durable, reliable water heaters makes it a good choice for most homes. The company sells water heater models in gas, electric, tankless, solar and hybrid styles.
Are Rheem tankless water heaters reliable?
Rheem’s electric water heaters get average ratings; Rheem gas tankless models boast ratings well above average. No other brand we reviewed has a pro line available only through dealers and a standard line available online and at home improvement stores.
Are tankless hot water heaters loud?
Tankless water heaters will all make some noise when starting up and heating water, but the noise levels are usually reasonable and not cause for concern.
Are tankless water heaters gas worth it?
Tankless: Gas and electric tankless water heaters run more efficiently than the conventional water heaters of the same fuel type. We rated the annual energy consumption cost Excellent for a gas model but only Fair for an electric, but both rate Very Good for energy efficiency.
Are tankless water heaters good for large homes?
Tankless gas water heaters typically generate higher flow rates for larger homes. But with that in mind, gas water heaters don’t necessarily supply a large number of hot water simultaneously. For example, if you’re taking a shower, and your spouse is doing laundry, this can push a tankless water heater to the limit.
Are tankless water heaters good in cold climates?
Yes, gas tankless water heaters can work well, even in cold climates, as long as the unit has been sized correctly to meet the hot water needs of your particular household.
Are tankless water heaters loud?
Tankless water heaters will all make some noise when starting up and heating water, but the noise levels are usually reasonable and not cause for concern.
Are tankless water heaters worth the extra cost?
While these systems are more expensive, they are also more efficient. In fact, Consumer Reports indicates that tankless water heaters are 22% more efficient than standard models. The monthly savings might be nominal, but homeowners can expect to save hundreds of dollars annually.
Can a tankless water heater cause low water pressure?
Low Water Pressure from Tankless Water Heater
Mineral buildup in the pipes near your water heater could cause low water pressure. If you have the same problem when you use only cold water, there could be a blockage in another pipe or a problem with your local utility company.
Can a tankless water heater fill a tub?
Please remember that tankless water heaters also come in different sizes, and you need to get a unit that will deliver a strong flow to the tub. A small tankless water heater can take a long time to fill a large tub. Second, bite the bullet and just install a larger water heater in place of your present water heater.
Can a tankless water heater work for the whole house?
Electric tankless water heaters can be installed in any location within your home with the appropriate hookups. Their compact size frees up valuable space within your home. For gas tankless water heaters you will need to utilize specific venting, which will impact where you can install throughout your home.
Can I replace my hot water heater with a tankless?
Absolutely! In fact, tankless water heaters are becoming the standard for new home construction because of the energy efficiency. Newer tank water heaters have a UEF (Uniform Energy Factor) rating of 0.70 compared to your standard tankless water heater that has a rating of 0.94.
Can I replace my tank water heater with a tankless?
Yes. The initial cost of converting your tank water heater to a tankless is expensive. Tankless water heaters are 3x more expensive than your average tank water heater. However, the energy savings and supply of endless hot water can outweigh the cost for many.
Can tankless water heaters keep up with demand?
Although tankless water heaters technically cannot run out of hot water since they are designed to always heat up more water on demand, they can be overwhelmed with demand when there are multiple taps or appliances on at once.
Can you go from a tank water heater to a tankless?
Yes. The initial cost of converting your tank water heater to a tankless is expensive. Tankless water heaters are 3x more expensive than your average tank water heater. However, the energy savings and supply of endless hot water can outweigh the cost for many.
Can you have instant hot water with a tankless water heater?
As with a point-of-use water heater that includes a tank, a tankless point-of-use water heater can provide nearly instant hot water because of its location near the fixture that needs the hot water.
Can you oversize a tankless water heater?
As suggested when selecting a tank-type heater, you don’t want to buy an oversized or undersized tankless water heater, as it will result in unnecessary issues such as the rising upfront price, operating costs, and wasted water, and energy – affecting your budget and time.
Can you run out of hot water with a tankless water heater?
Although a tankless system can’t run out of hot water, it can still be overwhelmed with demand. A single tap won’t do this: run that single shower all you want, you’ll keep getting hot water.
Can you use a tankless water heater with natural gas?
Tankless Water Heater Advantages
They usually operate on natural gas or propane. The main advantage is that they eliminate the extra cost of keeping 40 to 50 gallons of water hot in a storage tank, so you waste less energy.
Do gas tankless water heaters work when the power is out?
If you use a tankless gas water heater to provide your home with hot water, you may be wondering if you’ll have hot water in the event the power goes out. So, will a tankless gas water heater work without electricity? No, a tankless gas water heater still requires some electricity to operate.
Do I need to clean my tankless water heater?
Just like a tank unit, tankless water heaters need to be flushed once per year. Homeowners with hard water should consider flushing and cleaning the unit even more frequently, perhaps every six to nine months because of the excess amounts of magnesium and calcium found in hard water supplies.
Do tankless water heaters have more problems?
More Can Go Wrong Than Right
With so many wires and small parts, tankless hot water heaters can have a long list of possible problems. The air supply and specialized exhausts have a tendency to get blocked, which usually makes the device shut down.
Do tankless water heaters increase electric bill?
You can check if tankless water heaters are actually worth it and if they save you money here. Most households use less than 41 gallons of water per day. 24% – 34% is quite a lot of energy savings.
| Wattage Of Electric Tankless Heater | Cost Per Running Hour |
|---|---|
| 30 kW | $3,96 |
Do tankless water heaters need maintenance?
The good news is that tankless water heaters don’t require much maintenance, either. A tankless system should be serviced as a part of the regular preventive maintenance that heating and cooling systems receive. Electric or gas components should be inspected.
Do tankless water heaters use more electricity than regular water heaters?
Tankless heaters can be 24-34% more energy-efficient than regular water heaters for households that use 41 gallons or fewer of hot water daily. Tankless heaters can be 8-14% more energy-efficient for households that use around 86 gallons daily.
Do tankless water heaters wear out?
A tankless water heater can last up to 20 years before it needs to be replaced. Regardless of what type of water heater is installed, over time, it will corrode with age, and it’s essential to monitor it for any of the below issues, especially if it’s in the second half of its lifespan.
Do they make natural gas tankless water heaters?
Rinnai RL75iN Natural Gas Tankless Hot Water Heater, 7.5 GPM
With WiFi connectivity, this natural gas-powered tankless water heater is a good option for families with up to three adults or teens.
Do you need a water softener with a tankless water heater?
Tankless Water Heaters
For customers who either already have a tankless water heater or are considering switching to tankless, a water softener is a great idea. Because it helps protect your water heater, we will actually recommend a water softener with all tankless installs we do!
Does a tankless water heater run out of hot water?
Although a tankless system can’t run out of hot water, it can still be overwhelmed with demand. A single tap won’t do this: run that single shower all you want, you’ll keep getting hot water.
Does a tankless water heater save money?
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.
Does it take longer to get hot water with a tankless water heater?
If you have a tankless water heater then you probably already know that it takes longer to get hot water with a tankless water heater than with an old fashioned storage tank type water heater. Typically tankless water heaters take 10 to 20 seconds longer to get hot water to the fixtures.
Does Rheem tankless water heater use gas?
RheemPerformance Platinum 9.5 GPM Natural Gas High Efficiency Indoor Tankless Water Heater.
How do I change my tank from water heater to tankless?
How do I know which tankless water heater to buy?
When buying a tankless water heater, take into account the size of your house, the water flow rate of your faucets, the temperature of the water before it heats up and how hot you want your water to be. With those calculations, a Lowe’s associate can help you find the best tankless water heater for your home.
How long do Rheem tankless water heaters last?
Life expectancy: 20 years or more.
How long do tankless water heaters last?
How long does a gas tankless water heater last?
How long does a tankless water heater last?
How long does it take to install a tankless water heater?
How many BTU tankless water heater do I need?
(Electric tankless heaters that use elements instead of a gas burner also exist, but aren’t as effective for whole-home use.) In order to get the water to a sufficient temperature, the units use a high volume of gas, typically between 150,000 and 200,000 BTUs, which in most homes requires the upsizing of a gas line.
How many gallons per minute do I need for a tankless water heater?
What is a flow rate and what should I ask for? Consider how many of these needs you may have simultaneously to determine the maximum flow rate you require. For a home with 1 bathroom, we recommend 6-7 GPM; 2 bathrooms, 8 – 9 GPM; and 3+ bathrooms, 9-11 GPM.
How many gallons per minute do you need for a tankless water heater?
In a tankless system, water is heated only as it is needed. The best sizing factor for a tankless water heater is its flow per minute rate. A 3.2 gpm, tankless heater can heat 3.2 gallons of water per minute, which is roughly enough to provide hot water to a shower and a sink.
How many gpm do I need for my house?
The average household needs 100 to 120 gallons per person per day, and a flow rate of about 6 to 12 gallons per minute.
How many gpm tankless do I need?
Flow Rates
We suggest using 2.5 gpm for a shower and 1.0 gpm for a bathroom as a reference point in determining your total simultaneous water needs.
How many years does a tankless water heater last?
How much does a natural gas tankless water heater cost?
Gas tankless water heaters start at about $125, but for high-quality, long-lasting gas tankless models, prices start at about $500 and range to more than $2,000. Installing an electric model costs $150 to more than $700. The cost to install a gas water heater costs about $600 to $1,500.
How much does it cost to change a tank to a tankless water heater?
Converting from a storage-tank water heater to a tankless water heater costs $800 to $3,500 on average. Replacing a tank water heater with a tankless model involves retrofitting the existing gas line, venting system, and electrical wiring, and may require bringing old plumbing up to code.
How much does it cost to convert to tankless water heater?
An electric tankless unit will cost about $500 to $700, roughly the same as a traditional tank model, while the cost of a gas tankless heater runs about $1,000 to $1,200. Beyond the initial cost, the national average for the installation of a tankless unit is slightly over $1,700.
How much does it cost to install a tankless gas water heater?
Natural gas or propane tankless water heaters cost between $1,000 and $1,500 to install. Natural gas water heaters are a popular choice and work well in cold climates. These heaters rely on a utility supply line, and the average cost to run a natural gas heater is approximately $200 per year.
How much does it cost to install a tankless water heater in Canada?
Most tankless water heaters in Toronto cost between $1000 to $3000. While we can accurately estimate the machine, the cost of installing tankless water heaters is based on the contractor you select.
How much does it cost to replace a tank water heater with a tankless?
Converting or replacing a tank water heater with a tankless system costs $800 to $3,500 on average. Tankless prices depend on the brand, fuel source, and flow rate. Tankless systems last 10 to 20 years (5 to 10 years longer than storage tank units). Tankless units have a 5 to 15-year warranty.
How much does it cost to switch to tankless water heater?
A tankless water heater is one way to ensure that you never again experience any unexpected cold showers. But these devices don’t come cheap: the average cost of a tankless water heater, with installation, is approximately $3,000. The total cost depends on the model chosen and whether your home requires retrofitting.
How much is a whole-house tankless water heater?
For a gas-powered whole-house tankless water heater, you can expect to pay up to $3,000 for the equipment and installation. As far as the equipment costs are concerned, electric units typically cost about $600, and gas units usually cost around $1,100.
How much is Lowes hot water heater installation?
The basic water heater installation cost at Lowe’s is $325. Plus, an estimated fee of $40 is usually added on top of this basic installation cost. Typically, additional piping will be required to complete the installation, so allocate some funds for this expense.
How often should a tankless water heater be flushed?
How often should you flush a tankless water heater?
To properly maintain and clean your tankless water heater, it’s important to flush those mineral deposits at least once a year. Follow this simple process to ensure optimal tankless water heater performance and efficiency.
Is 200 amp service enough for tankless water heater?
A 200-amp service allows operation of multiple appliances at once, while a 60-amp service won’t provide enough power to run an electric hot water heater, air conditioner and hair dryer simultaneously. The EcoSmart Eco-18 model requires two 40-amp breakers for installation and has a 75-amp draw.
Is a condensing tankless water heater worth it?
Condensing water heaters are worth it due to their lower cost and increased efficiency compared to non-condensing heaters. Installing a condensing water heater will drive down your energy usage, contribute less to environmental degradation, and improve your water heating efficiency from 85% to 95%.
Is a tankless water heater better on gas?
Efficiency / Operating Cost:
While gas tankless water heaters are certainly more efficient than their tank cousins, their efficiency usually peaks at 80-85%. Conversely, most electric tankless water heaters are 98+% efficient.
Is electric tankless water heater worth it?
Tankless: Gas and electric tankless water heaters run more efficiently than the conventional water heaters of the same fuel type. We rated the annual energy consumption cost Excellent for a gas model but only Fair for an electric, but both rate Very Good for energy efficiency.
Is it worth getting a tankless water heater?
While these systems are more expensive, they are also more efficient. In fact, Consumer Reports indicates that tankless water heaters are 22% more efficient than standard models. The monthly savings might be nominal, but homeowners can expect to save hundreds of dollars annually.
Is it worth it to switch to a tankless water heater?
Tankless: Gas and electric tankless water heaters run more efficiently than the conventional water heaters of the same fuel type. We rated the annual energy consumption cost Excellent for a gas model but only Fair for an electric, but both rate Very Good for energy efficiency.
Is it worth switching to a tankless water heater?
More About Energy (and Money) Savings
of Energy, a tankless water heater is more efficient and uses less energy than a conventional water heater, providing a $25 to $107 in annual savings. If your hot water use is low (less than 41 gallons per day), a tankless water heater will be 24% to 34% more efficient.
Is one tankless water heater enough for a house?
For larger households that typically use more than 85 gallons per day, two tankless systems, or the largest available model, are likely needed. For smaller households that use under 40 gallons per day, one unit should suffice.
What are pros and cons of tankless water heaters?
Are Tankless Water Heaters Worth It?
- Pro #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.
What are the advantages and disadvantages of a tankless water heater?
Are Tankless Water Heaters Worth It?
- Pro #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.
What are the different types of tankless water heaters?
The two primary types of tankless water heaters are non-condensing and condensing. Non-condensing tankless water heaters originated first and use heat exchangers to create hot water and vent the exhaust outdoors.
What are the main advantages of a tankless water heater over a tank heater?
Pros
- Energy Efficient. The U.S. Department of Energy reports a tankless water heater is 24% to 34% more energy-efficient than storage tank water heaters—as long as you use around 41 gallons per day. …
- Saves Money. …
- Saves Space. …
- Hot Water Supply. …
- Limited Hot Water for Multiple Outlets. …
- Power Outage. …
- Costs More Upfront.
What are the pros and cons of a tankless water heater?
Pros and cons of on-demand hot water
| Pros of tankless water heaters | Cons of tankless water heaters |
|---|---|
| High efficiency | Limited flow rate |
| Long-term savings | High upfront cost |
| Environmentally friendly | Can require prior setup work |
What brand of gas tankless water heater is the most reliable?
All in all, Rinnai Sensei Super is the safest, most reliable, and most cost-efficient tankless water heater. Its initial cost is quite high, but this is a long-term investment, and the real cost comes from natural gas usage, which is heavily reduced due to the extra high energy efficiency of the Rinnai Sensei Super.
What does E5 mean on Rheem tankless water heater?
Rheem RETEX-27 E5 Error code, High Flow Rate. If the LED control board is displaying an E5 error code, the desired volume of water is too high to reach your desired preset temperature and you will need to slow down the Flow rate if needed .
What is better tankless or tank 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.
What is the best brand of gas hot water heater?
- BEST OVERALL: Rinnai High Efficiency 6.5-GPM Tankless Water Heater.
- RUNNER-UP: A.O. Smith Signature 40-Gallon Water Heater.
- BEST BANG FOR THE BUCK: Sure Comfort 40-Gallon Natural Gas Tank Water Heater.
- BEST TANKLESS: Rinnai High Efficiency 7.5 GPM Tankless Water Heater.
What is the difference between 6 year and 12 year water heater?
If you were to buy a 12-year-warranty heater, likely the only difference between it and a 6-year-warranty one would be extra anodic metal: either a larger-diameter hex anode, or a normal one along with a half-length outlet rod in the hot port.
What is the life expectancy of a tankless water heater?
What is the lifespan of a tankless water heater?
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.
What is the most cost effective hot water heater?
Heat Pump (Hybrid) Water Heater
They use about 60 percent less energy than standard electric water heaters. And while they cost more than electric-only models, installation is similar and payback time is short.
What is the most efficient hot water heating system?
Uses renewable energy: Solar water heaters are the most energy-efficient water heater options available today.
What maintenance is needed on a tankless water heater?
Tankless Water Heater Maintenance
- Flushing the System. The hot water heater should be flushed at least once a year. …
- Cleaning the Air Filter. In your tankless water heater, there is an air filter that will need to be cleaned regularly. …
- Cleaning the Water Filter. …
- Cleaning the Tank.
What size Rinnai do I need?
Multiply the square footage by the BTU per square foot to arrive at the total BTU rating you’ll need from your Rinnai heater. All Rinnai heaters are rated for a particular number of BTU, ranging from 8,000 up to 40,000 or more, giving you a lot of flexibility in the model you can buy.
What size tankless water heater do I need for a family of 4?
| Sizing Guide for Residential Tankless Water heater | ||
|---|---|---|
| Household Occupants | Usage | Capacity Required (Measured in Gallon) |
| 3-4 people | Regular/Low | 40 |
| High | 50-75 | |
| 5+ people | Regular/Low | 50 |
What size tankless water heater do I need for a family of 5?
In short, a family of 5 would need a 10 GPM gas tankless heater or 27 kW electric tankless heater if you live in the northern part of the USA, where the input water has a lower temperature. The tankless heater has to work extra hard to bring the water temperature up to 110˚F or 120˚F.
What size tankless water heater do I need to replace a 40 gallon water heater?
| Sizing Guide for Residential Tankless Water heater | ||
|---|---|---|
| Household Occupants | Usage | Capacity Required (Measured in Gallon) |
| 2-3 people | High | 40-50 |
| 3-4 people | Regular/Low | 40 |
| High | 50-75 | |
What size tankless water heater do I need to replace a 40 gallon?
Comparing a 3.2 GPM tankless water heater to a forty gallon tank type heater is possible. For example, if a tankless unit produces hot water at 3.2 gallons per minute, this rate of flow will run a 40 gallon tank type heater out of water in only ten minutes. Tankless heaters do not store water.
What size tankless water heater do I need to replace a 75 gallon water heater?
| Sizing Guide for Residential Tankless Water heater | ||
|---|---|---|
| Household Occupants | Usage | Capacity Required (Measured in Gallon) |
| 3-4 people | High | 50-75 |
| 5+ people | Regular/Low | 50 |
| High | 75 | |
What size tankless water heater is needed for a family of 4?
What Size Tankless Water Heater Do I Need For A Family Of 2, 3, 4, 5, Or 6?
| Number Of Family Members: | Gas Tankless Heater Size (GPM) | Electric Tankless Heater Size (kW) |
|---|---|---|
| What size tankless water heater do I need for a family of 3? | 7-9 GPM | 15-23 kW |
| What size tankless water heater do I need for a family of 4? | 8-10 GPM | 20-28 kW |
What type of water heater is most energy efficient?
Uses renewable energy: Solar water heaters are the most energy-efficient water heater options available today.
What’s the difference between condensing and non-condensing tankless water heaters?
Condensing tankless heaters use a dual heat exchanger design to make maximum use of the energy delivered to the system. Non-condensing tankless water heaters utilize a single heat exchanger so they vent more heat in the exhaust gases.
When should I descale my tankless water heater?
Over 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.
Where should a tankless water heater be installed?
The ideal location for your water heater is inside the home. Most installations are small and unobtrusive so they will easily fit in a pantry, under the stairs, or under your sink. If you must place the water heater outside, make sure it’s safe from direct sunlight, rain, and insects.
Which brand of gas water heater is best?
Best Gas Water Heaters
| RANK | PRODUCT NAME | RATING |
|---|---|---|
| 1 | Rheem Performance Platinum Gas Water Heater 5/5 | 5/5 |
| 2 | A.O. Smith XCG-50 ProMax Water Heater 4.5/5 | 4.5/5 |
Which is better a tank or tankless 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.
Which is better hot water heater or tankless?
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.
Which is better Rinnai or Rheem?
Unlike Rheem, Rinnai tankless water heaters are made in the US. These heaters also offer superior efficiency and performance. On the other hand, Rheem has a wide range of tankless water heaters that offer decent efficiency, performance, and output volume at an affordable price.
Which is better water heater or tankless?
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.
Which lasts longer tankless or tank water heater?
Equipment Life. A tank water heater has an average useful service life ranging from 10 to 15 years. Alternatively, tankless water heaters last between 20 and 30 years.
Why are tankless water heaters so expensive to install?
Tankless water heaters have a higher initial price compared to tank heaters, costing homeowners between $1,200–$3,500. The higher cost is a result of a more labor-intensive set-up, as new gas and water lines are required for installation. For electrical tankless heaters, new electric wiring will need to be installed.
Why do tankless water heaters burst?
Gas tankless water heaters can cause a catastrophic explosion if there is a gas leak around the gas valve or gas piping. When a gas tankless water heater begins to leak, an electrical spark from any nearby source might be enough to cause an explosion.
Why do tankless water heaters fail?
Overload. Every tankless water heater has a flow rate capacity that should give you a good idea of how much hot water can be used simultaneously. If you go over that capacity, then you could overload the system and cause problems.
Why do tankless water heaters take so long to heat up?
Why does it take so long to get hot water from my tankless water heater?
The length of the delay can be determined by a few factors, including the distance between the water heater and the outlet. In other words, the longer the water has to travel, the more cold water will need to be discharged before the hot water appears.
Why does my tankless water heater take so long to heat up?
Why does my tankless water heater take so long?
The length of the delay can be determined by a few factors, including the distance between the water heater and the outlet. In other words, the longer the water has to travel, the more cold water will need to be discharged before the hot water appears.
Why is tankless water heater installation so expensive?
Tankless water heaters have a higher initial price compared to tank heaters, costing homeowners between $1,200–$3,500. The higher cost is a result of a more labor-intensive set-up, as new gas and water lines are required for installation. For electrical tankless heaters, new electric wiring will need to be installed.