Does cold weather affect tankless water heater?

By Robert Flores / October 27, 2022

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

Do tankless water heaters freeze in cold weather?

Thankfully, even on some of the coldest days and nights, you won’t need to worry about the water in your water heater freezing. Most indoor and outdoor tankless water heaters have built-in freeze protection for when temperatures drop between -5 degrees and -22 degrees Fahrenheit. Mar 11, 2019

What is needed to install a tankless water heater?

Tankless water heaters provide hot water on-demand. Gas units require a gas line, adequate combustion air, a vent to remove combustion gas and an electrical outlet to power the unit. While they last longer than tank-style water heaters, they are more costly to install and often require upgrading your gas line.

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Do tankless water heaters smell?

If you notice a stale, musty, or rotting smell near your water heater, it might have a leak. This is rare for tankless water heaters, but they can leak occasionally. Make sure you check the area for water damage, remove any materials with biological growth, and get repairs if needed. Dec 17, 2018

Do electric tankless water heaters need a vent?

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

Can tankless water heaters leak?

Architects and engineers understand that when a tankless water heater reaches the end of its life it will likely leak, just like a tank. Even though the leak is substantially less than a tank, containing the water and conveying it safely away can save thousands of dollars in property damage. Jun 11, 2015

How big of an electric tankless water heater do I need?

SELECTING A TANKLESS WATER HEATER 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.

Are electric tankless water heaters as good as gas?

Electric tankless water heaters are typically around 98 percent or more efficient while gas tankless water heaters are around 80-85 percent efficient. A gas tankless water heater can be cheaper to run and will typically last longer. Aug 5, 2019

How do you winterize an electric tankless water heater?

First, the heater should be turned off and the power cord unplugged. The gas and water supply lines should then be shut and the tank drained. When the water pressure reduces, the inlet and outlet water pipes should be disconnected. A bucket needs to be placed underneath to collect any remaining water. Nov 25, 2015

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How far away do things need to be from a water heater?

Anything combustible within 36? of a water heater must be moved out of that range. Paper, bags, clothing, etc. If it can burn, it will burn in the right circumstances.

How common are water heater fires?

According to the National Fire Protection Association, water heaters were responsible for 11 percent of fires started by home heating devices.

Are electric water heaters safe?

Safety. Both electric and gas water heaters are safe solutions for heating your water. That said, as with any appliance run on gasoline, water heaters are susceptible to gas leaks if they run on propane or natural gas. Jan 31, 2019

What is the best brand of tankless hot water heaters?

The 10 Best Tankless Water Heaters of 2022. EcoSmart ECO 27. Rheem 18kw Tankless Electric Water Heater. Stiebel Eltron DHC Trend Point-of-Use Electric Tankless Water Heaters. Rheem 13kw Tankless Electric Water Heater RTEX-13. Eemax 27kW Electric Tankless. Rinnai RU160iN RU Model Series. More items… • Oct 12, 2022

Can a tankless water heater go in a closet?

Your tankless water heater can be installed just about anywhere! Due to the small size of your water heater, it can be mounted in many small spaces, including closets, under sinks, in pantries, or under stair storage areas.

Can you replace a gas water heater with a tankless water heater?

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. Feb 18, 2021

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How do I keep my tankless water from freezing?

How to Prevent Your Tankless Water Heater from Freezing Install Your Water Heater in a Warm Place. … Drain Your Water Heater. … Maintain a Power Source. … Consider a Recirculation System. … Insulate, Insulate, Insulate. … Run a Trickle of Water. Feb 9, 2017

Can you put RV antifreeze in a tankless water heater?

How often do tankless water heaters need to be flushed?

once a year 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 often do you service a 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.

Can I put vinegar in my hot water heater?

A great way to get rid of that mineral build up is to flush your hot water tank, but if that isn’t enough you can add vinegar to your hot water tank, which will help to break up the deposits so they’ll drain more easily. The same cleaning techniques can also be applied to patio heaters. Dec 18, 2014


Does a Tankless Water Heater Work Well in Cold Climates?

Tankless Water Heater Buyer’s Guide

Tankless Water Heaters: A Buyer’s Guide

Preparing Tankless Water Heaters For Winter

Water Heater Fire Safety Tips

Pros and cons of electric water heaters

How to Prevent Your Tankless Water Heater from Freezing

How To Clean Gunk out of Your Hot Water Tank using Vinegar

About the author

Robert Flores