Do electric tankless water heaters need a vent?

By Robert Flores / October 27, 2022

Unlike gas or propane tankless water heaters, electric tankless water heaters do not need venting because they use electric burners to heat water rapidly. Since no natural or propane gas is used, no venting is needed. Jul 15, 2022

Which lasts longer gas or electric tankless water heater?

How Long Do Tankless Water Heaters Last? Gas-burning tankless water heaters should operate for 20 years or more, two or three times longer than tank-type heaters. Tankless electric units have shorter life spans, on the order of 7 to 10 years.

Can you take two showers at once with tankless water heater?

Depending on the flow rate of your water heater, you may be able to take a shower and use hot water at the kitchen sink at the same time, but you probably won’t be able to run two showers and the kitchen sink. You could, of course, install two tankless heaters to provide you with a greater output of hot water. Jan 29, 2018

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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. Feb 18, 2021

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. Feb 17, 2016

Why do tankless water heaters burst?

An Explosion Caused by Gas Leaks 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. Dec 28, 2020

Does cold weather affect tankless water heater?

If the water is colder, the tankless water heater can’t provide as much hot water per minute because it takes longer to heat it. Just like it would take you longer to cook frozen food than refrigerated food. Dec 21, 2021

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. Dec 21, 2020

Where should you install a tankless water heater?

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.

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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.

How often do tankless water heaters leak?

When installed properly by a good professional, a tankless water heater should last 15 to 20 years, compared to about eight to 12 years for tanks. And, many will never leak at all, just like the tanks. Jun 11, 2015

What brand of tankless gas 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.

Why is vinegar blue after descaling?

The vinegar will be a bit blue. This is from tiny amounts of corrosion of the copper of the tubes in heater. The copper imparts the blue color. Nothing to worry about.

What happens if you dont clean 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. Sept 17, 2022

What are two warning signs of carbon monoxide poisoning?

The most common symptoms of CO poisoning are headache, dizziness, weakness, upset stomach, vomiting, chest pain, and confusion. CO symptoms are often described as “flu-like.” If you breathe in a lot of CO it can make you pass out or kill you.

Can my phone detect carbon monoxide?

The Carbon Monoxide Detection Systems Checklist mobile app inspects Carbon Monoxide Detection Systems using an iPad, iPhone, Android device, or a Windows desktop.

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How do you check for carbon monoxide without a detector?

Here are some ways to identify potential carbon monoxide leaks: Brownish or yellowish stains around appliances. A pilot light that frequently goes out. Burner flame appears yellow instead of clear blue (exception: natural gas fireplaces) No upward draft in chimney flue. Stale-smelling air. More items… • Mar 19, 2021

Can you vent a water heater out the side of a house?

The exhaust gases and excess heat produced by your water heater are then vented back outdoors. A direct vent water heater uses special coaxial venting that has separate chambers for intake air and exhaust in a single assembled vent piece. The venting runs from the water heater through the side of your home.

How do you know if your hot water heater is Backdrafting?

Testing for backdrafting Cup your hands around the draft hood (the cone-shaped vertical pipe at the top of your water heater) and see if you feel warm, moist air. Place a small mirror by the draft hood, and check back to see if the mirror fogs, which would indicate the presence of moist air. More items… • Jul 29, 2021

Can I use PVC to vent gas water heater?

PVC is fine. As Jason mentioned, plastic (PVC or ABS) is ok to use as a venting material on powervented hot water heaters. They work by sending a huge amount of air in with the flue gases that it decreases the temperature of the exhaust going through the vent enough that it will not comprimise the vent. Apr 12, 2007

Resources

https://www.monkeywrenchplumbers.com/learning-center/existing-venting-for-tankless-water-heater
https://www.thisoldhouse.com/plumbing/21019184/read-this-before-you-buy-a-tankless-water-heater
https://www.erniesplumbingandsewer.com/never-take-another-cold-shower-get-a-tankless-water-heater
https://www.mgpmechanical.com/blog/converting-to-tankless-water-heater
https://www.gibsonsheating.com/blog/2016/february/tankless-water-heater-making-noises-here-are-som/

Dangers of Gas Tankless Water Heaters

Does a Tankless Water Heater Work Well in Cold Climates?

How to Deal with a Delay in Hot Water from a Tankless Water Heaters


https://www.homedepot.com/services/c/tankless-water-heater-installation/c88b47f07
https://www.homedepot.com/c/ah/what-to-expect-during-water-heater-installation-appointment/9ba683603be9fa5395fab9042d83092
https://www.phcppros.com/articles/440-using-drain-pans-to-solve-tankless-water-heater-leak-problems

6 Best Tankless Gas Water Heaters In 2022 (Based On Specs)


https://mikes-woodwork.com/SerranoTankless.htm
https://www.prideplumbingofrochester.com/blog/flushing-a-tankless-water-heater
https://www.cdc.gov/co/faqs.htm
https://www.gocanvas.com/mobile-forms-apps/15936-Carbon-Monoxide-Detection-Systems
https://www.cnet.com/home/security/what-is-carbon-monoxide-and-how-do-i-detect-it/
https://www.hotwater.com/resources/gas-water-heater-vent-configurations/

Should You Be Worried About Gas Water Heater Backdrafting?


https://forum.nachi.org/t/hot-water-tank-venting-with-pvc/15219

About the author

Robert Flores