Can I preheat water before it goes through a tankless water heater?

By Robert Flores / October 26, 2022

It’s not going to build itself! You can preheat water for any type of water heating system, gas or electric, tankless or with a tank, and it will translate into savings for you.

Why does my tankless hot water heater go cold?

Low Water Pressure Low water pressure is one of the most significant reasons why the tankless water heater suddenly cold during the shower. The flow within your device is lower than the activation flow rate required, resulting in the closing down of the gas burner or it may not ignite the burner at all. Jun 22, 2022

Can you take a shower with a tankless water heater?

With a tankless water heater, you can take a shower, use the dishwasher, and do laundry all at the same time without losing hot water. On top of saving, you from the dreaded cold shower, it can also save you money and energy.

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Where is the best place to put a 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.

Does a tankless water heater have to be installed on an exterior wall?

While tankless water heaters are meant to save you space over tank-style water heaters, there are still some challenges of installing them. They need to be installed inside of your home’s walls and then vented outside. Jan 6, 2022

How can I heat my pool cheaply?

7 Cheap Ways to Heat Your Pool Use a Solar Cover. Invest in Solar Sun Rings. Try a Liquid Solar Pool Cover. Build a Windproof Pool Enclosure. Use the Black Hose Trick. Snag a Pool Heat Pump. Combine a Solar Cover and Pool Heat Pump. Sept 13, 2022

Can I hook up a hose to my water heater?

A garden hose is a useful tool that can be connected directly to the hot water heater to drain the water and sediment inside.

Are there electric pool heaters?

Electric pool heaters are very common in the U.S. There’s a wide selection to choose from, and some models are extremely energy efficient. There are two types of electric pool heaters: Plug-in Electric Pool Heaters – These are lightweight, portable, and easy to install as well as to store. Sept 28, 2020

How much hot water does a 10 minute shower use?

25 gallons A standard showerhead flows at a rate of 2.5 gallons per minute . This means that a ten-minute shower only uses 25 gallons of water. A full bath can use up to 50 gallons of water . Using these numbers, a shower will use less water in most cases. Aug 16, 2021

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Can a tankless water heater supply a whole-house?

Both gas and electric water tankless heaters can function as whole-house solutions or as a smaller “point-of-use” system. Smaller single-use tankless water heaters heat water for just a single room, tap, or appliance. These larger and smaller systems essentially work in the same way.

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. Mar 15, 2012

What uses the most water in a house?

The largest use of household water is to flush the toilet, followed by taking showers and baths. Toilets account for nearly 30 percent of an average home’s indoor water consumption. Apr 30, 2018

How long is too long to shower?

If you like to linger in the shower for longer than 15 minutes, you might want to rethink your hygiene routine. According to board-certified dermatologist Dr. Edidiong Kaminska, MD, the recommended maximum shower time is about 5 to 10 minutes. This is enough time to cleanse and hydrate the skin without overdoing it. May 20, 2020

How much water does a 2 person household use per month?

On average in the US, water use at home (water from the tap, toilet, dishwasher, etc.) adds up to about 138 gallons per household per day, or 60 gallons per person per day. Apr 25, 2020

How much water does a 20 minute shower use?

If a standard showerhead is fitted, it will use around an extra half a gallon each minute, accounting for a 25-gallon emittance every 10 minutes, or 50 gallons throughout a 20-minute shower. Oct 20, 2020

What size tankless water heater do I need 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 3 more rows

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How many showers can you get out of a 50 gallon water heater?

50 gallon water heater Considering an average shower uses 17.2 gallons of water you can typically have enough hot water for up to five people to take a shower within an hour. Aug 28, 2017

What is the downside of a tankless water heater?

In addition to high upfront costs, tankless water heaters have several other disadvantages compared to tank-style water heaters: they take longer to deliver hot water. the water temperature is inconsistent when multiple outlets are on simultaneously. they cannot provide hot water during a power outage. Oct 16, 2022

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

Is gas or electric better for tankless water heater?

Overall, natural gas tankless water heaters are the choice for greater water heating capacity and electric models are better for small households and bolstering existing systems.

Resources

https://www.instructables.com/Solar-powered-Preheater-for-Tankless-Water-Heater/
https://gharpedia.com/blog/tankless-water-heater-goes-cold/
https://www.mrplumberatlanta.com/help-guides/never-run-hot-water-tankless-water-heater

Where to Put Your Tankless Water Heater

Can a Tankless Water Heater be Installed Outside?


https://paylesspower.com/blog/seven-cheap-ways-to-heat-your-pool/
https://www.ehow.com/how_7627287_connect-garden-hose-water-heater.html

Which is Best: Natural Gas or Electric Pool Heaters?


https://takecareoftexas.org/about-us/blog/shower-vs-bath-debate
https://www.protoolreviews.com/how-do-tankless-water-heaters-work/
https://climatecontrolcompany.com/blog/tankless-water-heating-2/
https://takecareoftexas.org/about-us/blog/what-uses-most-water-your-home
https://www.healthline.com/health/shower-time

Indoor Water Use at Home

How much water does a 20 minute shower use?

What Size Tankless Water Heater Do I Need? (2,3,4,5,6 Family)

Water Heater Sizes


https://prudentreviews.com/tankless-water-heaters-pros-and-cons/
https://www.eccotemp.com/blog/6-common-tankless-water-heater-problems-and-how-to-solve-them/index.php
https://bfplumbingbayarea.com/blog/gas-vs-electric-tankless-water-heaters/

About the author

Robert Flores