Should I get a tankless water heater?

NO!!!

Ok, yes.

i use the gas tankless heaters all the time for my commerical projects. for restaurants i use 2 units in line and they supply limitless hot water. the electric units imo are unable to heat water effectivly.

Tankless water heaters are great for never running out of cold water. Many people will point out that they require maintenance. What many people dont realize is that every time you flip on the faucet to wash your hands you are using some serious BTUs to heat water you will never feel (unless you wash your hands for 45 sec. or sometimes more). Get used to turning on the cold water only and you will really save some bucks. Of course if you want to save some bucks you could insulate your hot water lines (if possible), integrate a climate appropriate Solar Hot Water pre-heater and some point of use tankless heaters at remote faucets and get comfort on top of savings.

Things you should know before choosing a tankless water heater.

The upside:


	They never run out of hot water, take up less space and can last 5-10 years longer than tank heaters.

	Smaller units can be installed in closets, in cabinets and closer to the point of use.

	Most tankless water heaters come with a Federal tax rebate of $300.00, they’re more efficient with no standby heat loss, and can save as much as 20% from your water heating bill.



 The downside:

 


	Tankless water heaters can cost up to three times as much as a tank heater and use a lot of energy when producing hot water.

	You will most likely need at least a 200 amp service panel and/or may have to install a electrical sub-panel as many models require 3 - 40 amp circuits to operate.

	There may be a lag time when you need hot water, and most tankless units reduce the water volume and pressure and require a flow rate of at least .5 GPM in order to activate the heat exchanger.

	Tankless units require cleaning, maintenance and component replacement which, depending on the model you purchase, may result in difficulty finding replacement parts.

	Natural gas/propane units produce greenhouse gases, may require expensive stainless steel vent tubing and you may need a larger gas service line to insure the unit is getting enough fuel.



 Other stuff:  

Whole house electric tankless water heaters cost about $500-700 plus installation.  

Whole house gas powered tankless water heaters cost about $1,000 – 2,000 plus installation.  

Electric units are generally cheaper to install than gas units.

  I hope this helps!

tankless water heaters are great for hot water on demand so you dont have to let the water runto heat up so i say yes u should get a tankless water heater

Todays tankless water heaters are the way to go. They are usually very efficient and keep your hot water running and water bill and gas bill shrinking. Please be mindful that not all water heaters work in every situation. You may even have to change your supply line in some situations in order to supply recommended amount for that model. Please consult with a licensed plumber before starting this job.

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I say yes unless your looking for a quick payback on the investment. Although the energy savings are fairly significant it will be a while before you get a break even return.

Todays tankless heaters are more efficient than ever and they can be mounted almost anywhere, including exterior walls. One myth I might want to dispell is that you’ll have instant hot water. Not really the case as your water has to travel the same distance through those cold pipes as it would with a tank heater. So if you want instant hot there are other alternatives.

But you will get unlimited hot water if that’s something that you’re after. Most tankless heaters do require a 3/4" gas line, (if they are gas), so considering that most tank heaters are hooked up to a 1/2" line, this could be an extra expense you didn’t factor in.

It depends on several factors: One, how many people live at the property? if you have a large family the cost of the electricity can be high.If its just you and your spouse then it can be very efficiant. Some people don’t realize that a regular waterheater uses electricity even when no one is taking a shower, the tankless only come on on demand. Of course a waterheater timer can help aliviate the times that the waterheater cycles. Hope this helps. Also worth noting is that you can go tankless with natural gas instesd of electric and I feel thats the best option.

I lived for years in South America with them and I think they’re great.

I installed one myself when I build my own house, in Indiana with Natural gas, and it could support 2-3 bathrooms easily with around 110.000 BTU’s . Also the need for a chemnye is obsolete, so more places to put it.

When I roam over the answers overhere,


	I find some interesting points, yes it might take a while to get hot water, especially when you have a long run in your pipes.

	the system is on demand, so there are definately energy-savings in the long term

	Ordinairy water-heaters are on 24-7-365 , Unless off-course you put in a timer, which works until, I hear from people my water is cold and they turn it off!(instead of adjusting the timer)

	the payback , depending on geografic locations and Federal, State and Local/Utility rebates/programs is different for almost any scenario.

	I prefer the Gas one above the Electric one myself, better output and you don't lose half of your electric panel and/or breakers,we had those systems in europe 50 years ago already!

if you have the money to install them, then yes! they are wonderful! They are not cheap though. But never running out of hot water, and lower power bills are both very nice things!

I have installed both gas and electric. Costly to install yes, but the overall objective is to have fast hot water recovery whether using one to assist a tank heater,or just converting to tankless.

I do prefer gas over electric,and the benefit of the coils only heating when the hot water is turned on is appealing. It does save in the long term.

In residential I would recommend for homes with large families.

In restaurants it’s a no brainer alternative to a huge tank that is constantly struggling for hot water recovery. And it will manitain the required consistent flow of 120 degrees,and keep the health department off their backs .

If you have very hard water, you’ll want to install a water softener to prolong the life of your tankless water heater.

- Rhoda http://www.billfryconstruction.com/

With a house full of teenagers & loads of laundry, Dad never had hot water for his shower at the end of the day.

A tankless water heater solved that. There are a few drawbacks…

Every idiot that bangs on a stickshift faucet, even slightly on the HOT side, causes the heater to fire. I’m sure that this short cycling wil be the death of it.

In areas with hard water you have go to have a water softener - the hard water will kill a tankless water heater.

They require a special double walled stainless steel vent when mounted indoors. Plus, the vent needs a place to drain any condensate that collects inside the vent pipe.

In a power outage - you will not have any hot water.

In a natural disaster, there is no tank of potable water for use.

I find that an indirect would be a much better option unless space is a necessity. Tankless heaters tend to require maintenance and that cuts down on savings. My opinion, get a nice 90-95% boiler with a indirect if you have hot water and gas.