Tankless Water Heaters: Which One Is Right For You?

We're covering every step of the process in selecting a tankless water heater. Pros and cons of gas on-demand heaters vs electric? Which brand of water heater will work best for you? How does one size a tankless water heater? We'll walk you through from the big picture to the specific model in this video.

About PEX Universe:
PEX Universe is a leading industrial equipment supplier offering high-quality heating and plumbing solutions for real-life professionals, homeowners + DIYers. The mission of the brand is to equip and empower consumers by providing the best products for heating and plumbing, delivering the most authentic customer service, and offering the most competitive prices available online. PEX Universe was established in 2004 and is based in Brooklyn, NY.

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[arsenicbug]

thanks for the quick and fast guide! got a pretty rusty water heater when we bought the house so i got here while doing research on tank vs tankless :)

[danielames]

Simple and informative. Thank you for respecting my time.

[motion]

I just got an Stiebel Eltron DHC E 12KW For a one bedroom one bath apartment And I am frustrated because it’s good for a faucet but not good for a shower, however the water pressure where I live it’s insane, thanks to your video now I understand the importance about GPM, I will be checking on a Tempra plus 12. I reside in Miami. Thank you so much 😊

[jimmymaldonado-sandoval]

2+2 is 4 -1 thats 3 “QUICK MAFS!”

That killed me.

Really good video too!

[davidvandruff]

Can you use a POU for a typical washer? I'd like to put a washer and dryer in a location I don't have hot water.

[TM-rszv]

Hi, I live in the UK. I wanted to install Stiebel Eltron DCE-X 10/12 Premium electric tankless water heater in my bathroom to feed the basin and the shower. I talked to their technical team and they told me I could have any shower with this unit. Yet when I was about to install it, the plumber told me it was not going to be good enough for a shower. I contacted Stiebel-Eltron again, and they said that running the unit at its max capacity the best I'd get was 7 Liters per minute, which meant I could not have a shower that would demand more than that flow rate or I'd gate temperature fluctuations. The thing is that all showers on the market at a 2 bar pressure (which is what I have in my flat) deliver almost 20L/m. I'm very confused how Stiebel-Electron can then say their unit is suitable to feed a shower? Am I missing something? Is this unit not fit for showers? Or can I fix this issue installing a water flow restrictor in the shower? Can I even have a thermostatic shower with this water heater? I'd be extremely grateful for your guidance. Thank you!

[ConservativesAreDummies-gkhl]

Great video if you want to fall asleep

[onthemovewithfiifi]

You are the coolest person to talk about such stuff😆

[jerryhall]

Installing an outdoor shower on a pool bathroom in Houston. What would you recommend from a tankless perspective? Gas, electric what model and size? I suspect the shower will rarely get used but the sink for hand washing will be used most often.
Thanks,

[ShrimpCracka]

I'm not sure if i need a meter upgrade, I'm getting conflicting info from different sources. I have a 250cf/h meter with 7" water column, the tankless unit is the first unit from the meter 40' away on a 1" black iron line. total btu requirement for the home is 330btu excluding the fireplace that is never used, 380 btu with the fireplace. rinnai, rheem, ao smith, and 3 plumbers I've called seem to think that upgrading the meter didn't make any sense, and that my current meter should support my gas requirements, only my gas company seems to think I need to upgrade.

[difarr]

Hi.... Using LP...., what do I need for single point of use, single bath?... Thanks

[noahplato]

I'm building a new house. I want to buy an electric tankless water heater, but I am worried it will cause problems. Mainly, I want to put it in a small 3' x 4' room I will also use as a pantry, but NOT if an electric water heater emits water vapor/condensate that could create a humid environment that could breed mold. Would it be safe to install the electric tankless water heater in the small pantry? Or would I be at risk of creating a haven for mold? Thanks!

[JudiChristopher]

Great Video... Excellent Information... (love your voice).
As far as the "Movement" of the video ... (I'm an Acting Teacher)... you need to
"Show more, than just Tell"...

[dad]

What are some reliable brands to consider? I know Rinnai, but they are so expensive.

[FoXtac]

lmao That 'Quick Maths' comment is gonna be under-rated. I seen what you did there.

[PEXUniverse]

If you have ANY questions relating to tankless water heater technology, please leave a comment down below and we will help you in any way we can! Thanks for watching!

[jonver]

Do gas tankless run at full capacity at all times or is there a point where the BTU throttle down ?

[ujsclsy]

I'm curious about the costs of running a central gas water heater as opposed to electric point-of-use tankless in the kitchen bathroom, and laundry room.
I know that one must consider things like water hardness and pH (softening systems) with the POA tankless but overall, how would you say the two systems would compare in cost?

[richardturkaly]

Anybody out there? It is Dec 2022, I need help with if this is good for me

[saltlight]

So by your calculation, I'm getting 5 gal.s in 100 seconds, 100 sec./5 = 20 sec.s, 20 sec.s x 60 = 1200 GPM!