8 Common Misconceptions About Tankless Water Heaters

8 Common Misconceptions About Tankless Water Heaters

Key Takeaways:

  • Installing a tankless water heater is among the most energy-efficient decisions you can make for your home this year.
  • Tankless heaters are fast, offer precise temp control, require minimal water heater maintenance & are easy to house in constricted spaces.
  • They, however, require specialized labor for installation purposes. One can’t DIY their way through storage to tankless retrofit since the housing, connections, & power requirements vary.
  • If you want to boost the value of your estate, you can always opt for a tankless heater installation for higher ROI.
  • There are a lot of discouraging & misleading water heater myths about tankless units, but they are borne of folks who have yet to discover the practical benefits of installing one.
  • Bill’s Plumbing & Sewer carries the full range of Rheem heaters and will source A.O. Smith & Bradford White heaters upon request!

If you live in a house or operate a small business, chances are you’ve considered installing a tankless water heater. It is convenient during the winter when you need a hot shower in the morning before hitting the office commute. However, there are still some misconceptions about them.

Today’s blog post by Bill’s Plumbing & Sewer, serving Deerfield, FL, will dispel some of the most common tankless water heater myths. After reading this post, you’ll know everything you need to make an informed decision about whether or not installing a tankless water heater is right for you.

Myth 1: You Can Swap Storage & Tankless Modes With Ease.


The venting layout, electrical requirements & gas needs of storage in a tankless water heater differ. You can’t retrofit or swap between the two unless you have a thorough rework at the hands of a professional. It is best to have your water heater replacement done by someone who understands the layout difference.

Myth 2: Anyone Can DIY Install a Tankless Water Heater

If you are a trained electrician or a plumbing technician, you might be able to do so. Installing a tankless water heater requires skills to sell the right connections to the electrical outlets, make the right gas connections, and adhere to tenancy and area codes. Even if you go DIY, you could make a few mistakes affecting the tankless unit.

DIY is better managed with storage water heater units if you know what mistakes to avoid! Read here!

Myth 2: Anyone Can DIY Install a Tankless Water Heater

Myth 3: A Tankless Water Heater Delivers Instant Hot Water.

That is also a flawed perception. The tankless water heater heats water at a far slower rate than a storage one. If the unit stalled in the place of your previous heater, it will take a few seconds for the unit to heat up. Then the heater thermostat will determine how high a temperature it needs based on the flow rate set by the user.

Myth 4: All Tankless Water Heaters Come with The Same Functions

There are various models of tankless heaters. They also come with their ratings for efficiency, cost-effectiveness & ease-of-installation. So, you can choose a heater that best suits your budget or serves you the desired features. The more high-end a tankless water heater will be, the more features & auto-mated functions it can offer.

Myth 5: You Don’t Need a Permit To Install A Tankless Water Heater

All items in the category of intensive home appliances in Illinois require a licensed installer. Since a tankless water heater is a category III appliance, it will require specialized installation and connecting materials. Therefore, you might also need to secure a tankless water heater replacement permit.

Now for a few more slightly ridiculous myths on tankless heaters.

Myth 6: They Have High Operating Costs

Other myths about tankless heaters tend to be expensive and rack up quite a bill by the end of the month. Contrary to that belief, these water heaters offer optimized energy usage, leading to curbed utility bills that don’t dent your bank balance. You might as well save up to 1/5th of your total energy bills.

Myth 7: These Heaters Lack Thermostat Control

The first myth addressed the myth of the slow rate of water heating in these heaters, but this one cites the lack of thermostatic control. These heaters may be small, but they pack in quite a punch regarding heating and temperature control. So, you will get the water heated to the temperatures you need at the right time.

Myth 8: Tankless Water Heaters Have a Limited Water Supply

That has to be the most ridiculous & discouraging myth for anyone seeking to enhance their energy use optimization & curb their bills. Tankless water heaters do not work with a storage unit. They heat the water directly from the water feed and can deliver it on demand. There is no reason this myth should rob you of an ideal opportunity to keep your mornings warm & your bills cool!

Why Should You Get a Tankless Water Heater?

If you have gone through these myths, you will realize that the utility of swapping for a tankless installation is manifold.

  • You have an ‘on-demand’ supply of lukewarm, warm, hot water; you name it!
  • Your gas bills are not subject to the ongoing heating costs that come with owning & operating a storage water heater.
  • They are space efficient. A storage water heater needs at least a 12-square-foot area for installation. A tankless variant will take up less and can be mounted too!
  • Tankless water heaters are not subject to the rampant caulking, sedimentation & corrosive issues in storage units.
  • Unlike storage water heaters, going tankless protects your home from the possibility of flooding in case the heater develops a leak.
  • Suppose you want to enhance the ROI of your estate on resale or bump up the tenancy rates. In that case, you can opt for a tankless water heater installation.

Let’s Go Tankless Water Heating with Bill!

At Bill’s Plumbing & Sewer, serving Deerfield, IL, you can come in anytime or call us for any plumbing-related emergency, query, installation & fix, and we’ll be there. Our professionals are adept at trivial-to-intensive plumbing tasks in the region. We also do water heater maintenance in addition to replacement & repair.

Call us if you need assistance with sourcing & installing a tankless water heater. We offer a full range of Rheem heaters, and we can also source A.O. Smith & Bradford White heaters upon request!

Don’t forget to secure a free estimate on our services today!


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