Bosch AquaStar 125B NG Natural Gas Tankless Water Heater

Bosch AquaStar 125B NG Natural Gas Tankless Water Heater

count ratings (51 Epinions reviews)
Share This!
  Ask friends for feedback

    Highest Rated Consumer Review by the Community

  • Bosch AquaStar 125B Tankless Water Heaters... Meet High Demand North Americans

    Dec 18, 2007 by
    Rated a Very Helpful Review
    Pros: Good for the environment, save energy, no standby losses, compact.
    Cons: Often don't meet high water demands of North Americans, need maintenance plans factored in.

    Summary: Tankless, gas-fired, instantaneous water heaters have been trying to break into the North American markets since the late 1970's and early 1980's. It therefore isn't "new" technology, as countries like England, Germany, and Japan have all been ... read more

  • Don't waste your money .

    Jun 22, 2011 by
    Rated a Helpful Review
    Pros: Endless supply of hot water. Space saving design.
    Cons: No one seems to know how to service them. Endless repairs.

    Summary: We bought our Bosch Tankless water heater five years ago after building our first new home. We had two teenage daughters, and were excited about the endless supply of hot water and were impressed with the Energystar ratings. Well, it didn't take long ... read more

  • Excellent! If you understand what you are getting.

    May 12, 2010 by
    Rated a Very Helpful Review
    Pros: Small footprint, water heats quite quickly and never runs out, decent gas savings. 
    Cons: Proper installation is key, routine maintenance is required, you will spend more up front.

    Summary: I purchased a new Bosch 125B NG for about $300 on a great sale. It replaced my old 40gal tank heater from the early 1990's that was starting to leak. On the whole, I could not be happier with the unit. My wife and I are thrilled! But, as others have ... read more

  • Bosch Support is a Nightmare

    Jan 22, 2010 by
    Rated a Very Helpful Review
    Pros: A very long hot shower is always available.
    Cons: Lack of qualified companies that install or fix a unit that has quit.

    Summary: Warning – Technical Support at Bosch is an absolute nightmare!  Before you buy this product, do yourself a huge favor and call their customer support line to see how long it takes to get the help you need.  I averaged sixteen minutes to ... read more

  • Don't Buy Bosch Water Heater

    Dec 30, 2009 by
    Rated a Very Helpful Review
    Pros: Endless hot water when it works!
    Cons: Unreliable, inconvenient, over-engineered.

    Summary: I built my dream house and immediately planned for a tank-less water heater. Designed the plumbing system for it, had a special place built in the house for it, and decided on Bosch because of their good reputation in the automotive industry. One morning ... read more

  • Ok Unit, If you're handy

    Dec 18, 2009 by
    Rated a Very Helpful Review
    Pros: Constant hot water.  Nice for taking really long showers or when company is over.
    Cons: Just read the main review.

    Summary: I've owned this model for about 5 years now, after buying it to replace a worn out 40 gallon tank.  Buyer beware...the $500 purchase price does not reflect the full price to get this unit up and running.  You can offset many of the costs if ... read more

  • Aquastar 125 hx dont buy

    Sep 15, 2009 by
    Rated a Helpful Review
    Pros: hot water all the time
    no tank so you have extra storage space
    hangs on the wall
    Cons:  maintennance is high-quality of plastic parts and glues are questionable-expensive parts

    Summary: this unit is less than 4 years old - every year for 4 years  the carbon builds up so it has to be regularly cleaned in order so that it can  ignite -On a second visit the plumber decided to give me his steel cleaner and he showed me ... read more

  • Bosch 125B

    Oct 27, 2008 by
    Rated a Very Helpful Review
    Pros: Lowest cost in it's class. Hmmm it's the only one in it's class...
    Cons: . If you like Russian autos, you'll love this.

    Summary: Having installed tankless for decades my experience says use this for one fixture at a time and do your homework before purchasing any tankless. If you do not feel you can service this, do not purchase it. In hard water after a few years of no service, ... read more

  • Nothing but Trouble

    May 13, 2008 by
    Rated a Helpful Review
    Pros: Available at Lowes for a good price
    Cons: Bosch said I should PAY a plumber to repair new heater!

    Summary: My first Bosh water heater I bought from Lowes. I paid $150 to have it installed and we were not able to get it lit. After it would not light I called Bosch they wanted me to pay for a plumber to come out and repair it.I asked the operator if they would ... read more

  • Expensive to own and use

    Apr 22, 2008 by
    Rated a Very Helpful Review
    Pros: Endless hot water.
    Cons: Hard to control temperature + other high costs.

    Summary: I have had this unit for about 6 years. I was happy once I go over the installation and it was all said and done. We did enjoy not running out of ho water but there are some huge trade offs. You will immediately notice that you cannot control the amount ... read more

  • nice if you are looking for low price, but quality is not there

    Mar 22, 2008 by
    Rated a Very Helpful Review
    Pros: tankless
    Cons: 2 holes to the outside, quality is poor, size, breaks often.

    Summary: had it for quite some time and would not buy it again. Too little for more than 1 bedroom house, breaks often, repairs and replacement parts are not so easy to find and expensive. when installing have to make 2 holes to the outside because it needs to ... read more

  • Bosch AquaStar 125B NG Natural Gas Tankless Water Heater

    Mar 6, 2008 by
    Rated a Helpful Review
    Pros: you have Pro & has done 5 installs/give him your info-he'll know.
    Cons: No Pro you're taking chances. if it was your wifes suggestion, you might have chance.

    Summary: My experience was in my own home. I could hardly wait for my water heater to go out... my 40gal. track-house unit lasted 18yrs. I purchased mine from home-depot, and bought the highest output rated unit they had. My problem was wife and Daughter.. It ... read more

  • WARNING - things you should know about a tankless heater

    Mar 1, 2008 by
    Rated a Very Helpful Review
    Pros: Pros: Endless (but limited volume of) hot water, smaller than tank.
    Cons: Cons: Temperature surges, expensive, maintenance

    Summary: Note: I donít own this hot water heater, but I own a similar one. The comments I make here apply to all tankless heaters, regardless of brand. These are things you should consider before making a purchase. They are also things you wonít hear from the ... read more

  • Endless hot showers... How could you not love this thing?!

    Jan 11, 2008 by
    Rated a Very Helpful Review
    Pros: It saves space. It's cheaper than any other tankless heaters I've seen. It's energy efficient.
    Cons: Difficult installation. Temperature varies. Faucet must be fully on to operate (no hot water trickle).

    Summary: The following review was my initial opinion of the Aquastar 125B. I have updated the title and pros/cons to better suit my current opinion but I'll leave the review alone because I think it helps illustrate how this heater can take some dialing in and ... read more

  • NEVER PURCHASE A BOSCH -Faulty products, Zero customer service

    Nov 5, 2007 by
    Rated a Helpful Review
    Pros: none
    Cons: EVERYTHING! wastes water, won't stay lit, unethical tech support behavior

    Summary: Since the purchase of this faulty water heater, it has never worked right and has been a persistent problem. It can shut off 3 times during a single shower, or the pilot light may extinguish when not even in use. For years I have been on the phone ... read more

  • Bosch Aquastar 125 -- The modern solution to hot water

    May 13, 2007 by
    Rated a Very Helpful Review
    Pros: Energy savings, space savings, continuous hot water on demand, long life, earthquake safe.
    Cons: I had one service call during the last eight years.

    Summary: I have used a Bosch Aquastar 125 in my home serving a family of four for more than 8 years. This water heater works like a spa water heater by heating water as it senses water passing through a heating chamber. It is "on" only while the water is ... read more

  • Good, if you donít take bathís/donít ever have guests /like adjusting things

    Dec 30, 2006 by
    Rated a Very Helpful Review
    Pros: good for cottages, one person house holds, for spatially challenged areas.
    Cons: Horrible: Output GPM, COST of Unit, installation, maintenance.

    Summary: I've installed one in my home also. At first I was satisfied, but now I have grown annoyed with the heater. No one else in the household can use the hot water while you’re in the shower, or else you will get doused with cold water. Also, it takes ... read more

  • If you enjoy wasting time and money and WATER- BUY A BOSCH TANKLESS

    Dec 10, 2006 by
    Rated a Very Helpful Review
    Pros: Absolutely NONE
    Cons: Expensive, wastes water, no tech support, EXPENSIVE to call plumbers who know NOTHING

    Summary: I just built my "dream home of a lifetime" - Chattahoochee Riverfront in the North Georgia Mountains. We wanted our home to be top quality, state-of-the-art. We did research (Not as much as we SHOULD have, turned out) and bought the Bosch Tankless ... read more

  • Aqua Star Bosch tankless water heater

    Nov 28, 2006 by
    Rated a Helpful Review
    Pros: space saver, illusion of continuous hot water
    Cons: cost, high maint., poor performance, horrible service, low water pressure.

    Summary: The 125 has a plastic water valve, replacement part is $150 for another piece of plastic. Mine exploded less than 3 years after installation, but after the 2 yr warranty on parts had expired. The box gloats of a 15 yr. warranty if professionally ... read more

  • No Support for Two Year Old Water Heater

    Nov 12, 2006 by
    Rated a Helpful Review
    Pros: small size, no pilot light
    Cons: water not HOT, no service, and too expensive for a boat anchor, probably floats.

    Summary: I have a Bosch AuqaStar and installed it to save money and "do the right thing energy-wise". What a mistake. I could have bought at least conventional water heater for what I paid for the tankless. I could live with that if it was a money saver. It ... read more

Showing 1-20 of 51 reviews
Page 1 2 3