Do tankless water heaters need a vent?

By Robert Flores / October 26, 2022

Tankless hot water heaters require special venting to blow hot exhaust gas outside, where it dissipates. Unlike traditional tank-style water heaters, gas tankless hot water heaters offer far more versatile venting options. Oct 15, 2012

Can you put a tankless water heater anywhere?

Tankless water heaters can be installed anywhere inside your home. You can even have a tankless water heater in a bathroom! Some families with larger homes choose to install two, one for each floor, for example. Because of their small size, they fit in closets, cabinets, pantries or laundry rooms. Oct 29, 2020

How noisy is a tankless water heater?

Gas tankless hot water heaters all make noise when firing up and heating water, but the levels are usually less than 90 decibels.

What size of tankless water heater do I need?

For a home with 1 bathroom, we recommend 6-7 GPM; 2 bathrooms, 8 – 9 GPM; and 3+ bathrooms, 9-11 GPM. In our experience, smaller 4-5 GPM units are suitable for studio apartments and small one bathroom homes or other application specific needs.

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

between one to three hours Afterward, the tankless unit must also be mounted and connected. Tankless to Tankless Installation: This generally takes between one to three hours.

Are tankless 2022 water heaters worth it?

Yes. In fact, a tankless water heater will last almost twice as long as a conventional water heater. Traditional models with a storage tank tend to last around 10-12 years with proper maintenance. On the other hand, a tankless water heater will last for approximately 20 years. Feb 28, 2022

Where should tankless water heater not be installed?

You should avoid installing your tankless water heater in a location prone to excessive humidity, moisture, or dust, or in an area where it may be splashed with water or other liquids. Do NOT install under water pipes or air conditioning lines that might leak or condense moisture that could then drip onto the heater.

Where should tankless water heaters be installed?

As long as enough combustion air is provided, tankless water heaters can be installed in place of your old water heater or anywhere in your home. This includes utility rooms, garages, basements, attics, or mounted on outside walls. They can even be installed in locations where a storage water heater wouldn’t fit.

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. Mar 9, 2022

Do you need a professional to install a tankless water heater?

Tankless water heater replacement is a complex process that involves the skills of a highly trained technician. Unless you are experienced and comfortable enough to solder pipe, make gas connections and following local codes, hire a licensed professional.

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How do I convert my gas water heater to tankless?

This includes: Mounting the tankless water heater. Running the water heater’s vent to meet local code regulations (for gas models) Installing the gas line (for gas models) Installing new water lines. Installing the pressure relief valve. Connecting the electrical supply to the water heater. More items…

Does tankless water heater need dedicated circuit?

A tankless water heater will require a dedicated circuit as specified by the installation manual of the unit that has been selected. If you need additional space in the panel for the circuit breaker then a quad circuit breaker may be allowed as specified by the make and model of the panel.

Where do you put an electric tankless water heater?

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.

How long do tankless water heaters last?

Some people hesitate to decide on a tankless water heater because they can be a slightly higher cost; however, you get significantly more life out of one. A standard water heater tank lasts about 8-12 years. A tankless water heater can last as long as 25 years!

Are tankless water heaters high maintenance?

Another great benefit that often gets overlooked is easier maintenance. Compared to a traditional tank water heater, tankless units don’t require as much attention or replacement parts. Dec 25, 2020

Do tankless gas water heaters use electricity?

Do Tankless Water Heaters Work Without Electricity? It may be obvious that electric powered tankless water heaters won’t work without an electrical supply. However, natural gas and propane tankless water heaters rely on electricity as well, and won’t work without electricity. Oct 3, 2017

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How do you soundproof a tankless water heater?

The best way to soundproof a tankless water heater is to install it on the wall with anti-vibration neoprene mounts and an isolation bracket. The bracket and rubber mounts will isolate the tankless heater from the wall and reduce noise.

Do I need to upgrade my electrical panel for a tankless water heater?

Tankless electric water heaters usually require an upgrade in electrical service, something the home improvement stores often do not mention.

Can my breaker panel handle a tankless water heater?

Do not use the same calculated amperage as your final size breaker for tankless water heater. Otherwise, you’ll risk accidents because there’ll be no protection for a power surge. The National Electric Code (NEC) states that a circuit breaker should only handle 80% or less of its total capacity. Oct 3, 2022

Can a tankless water heater fill a tub?

Yes, usually. A tankless water heater can provide hot water indefinitely, which means it will fill up the tub. However, you still need to consider how fast the heater can provide the temperature of water you want. Faucets work by mixing in hot water with the cold. Feb 22, 2022

Resources

https://www.rinnai.us/announcements/7-tips-tankless-water-heater-venting

Can I Install a Tankless Water Heater in a Bathroom


https://todayshomeowner.com/problem-with-noise-from-tankless-hot-water-heater/

Tankless Water Heater Buyer’s Guide


https://www.homedepot.com/c/ah/what-to-expect-during-water-heater-installation-appointment/9ba683603be9fa5395fab9042d83092
https://www.allcityplumbing4u.com/blog/2022/february/is-it-worth-switching-to-a-tankless-water-heater/
https://www.e-tankless.com/installation-location.php
https://www.homedepot.com/services/c/tankless-water-heater-installation/c88b47f07
https://www.eccotemp.com/blog/6-common-tankless-water-heater-problems-and-how-to-solve-them/index.php
https://www.homedepot.com/c/ah/how-to-install-a-tankless-gas-water-heater/9ba683603be9fa5395fab904246ec3f
https://www.onehourheatandair.com/articles/expert-tips/home-life/how-to-make-the-tank-to-tankless-water-heater-co/
https://ask-the-electrician.com/installing-a-tankless-water-heater-circuit/electrical/

Where to Put Your Tankless Water Heater

The Pros and Cons of a Tankless Water Heater

Don’t Skip These 3 Important Maintenance Tasks for Tankless Water Heaters


https://medium.com/@aprtexas/will-a-tankless-water-heater-work-without-electricity-1d439530f4d6

How To Reduce Noise From A Tankless Water Heater (12-Step Guide)


https://www.bcremc.com/tankless.pdf

What Size Breaker for Electric Tankless Water Heater?

Can a Tankless Water Heater Fill an Oversized Bathtub?

About the author

Robert Flores