Do you need special pipes for tankless water heater?

Tankless water heaters don’t always need two ventilation pipes, even for direct-vent units. Direct-vent water heaters can use two separate pipes for intake and exhaust, but some manufacturers offer concentric venting, a single pipe that contains an inner exhaust vent and an outer intake vent.

Can I replace my 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 connect PEX directly to tankless water heater?

PEX tubing may be connected directly to residential electric tank or tankless (instantaneous) water heaters, if the local code and manufacturer’s instructions allow. When connecting PEX tube to gas tank or tankless water heaters, the tube must be kept at least 6 inches away from the exhaust vent of the heater.

How do I change my gas water heater to tankless?

Quote from the video:
Quote from Youtube video: Professional plumber the first step is to turn off the gas. And the water supply if you're replacing a standard tank type water heater get a hose attach it to the drain. And drain the tank.

What is the downside of a tankless water heater?

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.

Can I use flexible pipe for tankless water heater?





You can use flexible gas tubes or water pipes for a gas water heater in most states. In states with earthquakes, they can even be mandatory. If your existing gas pipe has CSST (corroded stainless steel tubes) or has not been glued, the connection should be replaced right away.

How much does it cost to convert to tankless water heater?

Gas tankless water heaters cost $700 to $4,600, and electric on-demand water heaters cost $600 to $2,500 with installation. 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.

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.

What is needed to install a tankless water heater?

A tankless water heater usually requires a 1-inch gas pipe from the meter to the water heater. If you need to install a new gas line, it is best to hire a professional plumber to do this. You may want to have another gas shutoff valve installed just prior to the unit being installed.

Do you need gas for a tankless water heater?



Homes without a gas line or propane tank can also enjoy the advantages of on-demand hot water by installing tankless units powered by electricity. These units, which heat water with thick copper rods, are quieter and about a third smaller than gas or propane tankless heaters.

How long does it take to install a tankless water heater?

between one to three hours

Additional time is required to install new power and water lines and air vents. Afterward, the tankless unit must also be mounted and connected. Tankless to Tankless Installation: This generally takes between one to three hours.

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.


How long should a tankless water heater last?

20 years

Most tankless water heaters will last for up to 20 years or more, which is a long lifespan in comparison to tank water heaters, which last around 10–15 years.

How often do you need to descale a 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.

How do you service an electric tankless water heater?

Quote from the video:
Quote from Youtube video: You might need a number two phillips depending on your model. But that's really about it the next thing we're going to need is a pump because we're going to end up.

What happens if you don’t flush your tankless water heater?

What happens if I don’t flush out my tankless water heater? Mineral deposits may build up. This could cause a clog within the unit and may prevent normal heating activity. Your hot water could also fluctuate and overheat the system, impacting its efficiency.

How do I service my navien?

Simple Tips for Maintaining Your Navien Unit

  1. Clean the inlet water screens. …
  2. Clean the air filter. …
  3. Clean the condensate trap. …
  4. Flush waterways. …
  5. Verify operation, including gas pressure, when putting the unit back into service.



How often should Navien tankless water heaters be serviced?

Many tankless water heaters can work efficiently for 20 years or more, but they do require periodic servicing. Annual maintenance is often essential for the manufacturer’s warranty policy.

Is Navien a good tankless water heater?

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.

Where are Navien water heaters made?

Navien manufacturers its water heaters in South Korea. The company says that its factory in Seotan (about 1.5 hours from Seoul) is the largest boiler manufacturing plant in the world.