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Bosch Greenstar Boiler

#1 of 1 Bosch Boilers

Updated: May 23, 2016

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Overview of the Greenstar

The Bosch Greenstar is a gas condensing boiler with an efficiency rating of up to 96.1% AFUE. All models of the Greenstar series are Energy Star rated. The Greenstar features a wall-hung design and is available as a space heating boiler with a hot water tank or as a combi unit. It features an Al-Si heat exchanger made of Aluminum-Silicon alloy, and combi units are equipped with a stainless steel heat exchanger. A fully modulating fan assembly helps to increase the unit's efficiency. All models are available for use with LP or natural gas, with a conversion kit included.

Consumer Reviews of the Bosch Greenstar

Compare to Other Bosch Boilers:
  • Very Satisfied
    19
  • Somewhat Satisfied
    3
  • Neutral
    0
  • Somewhat Unsatisfied
    0
  • Very Unsatisfied
    1


Date created: 2016-05-23 Location: Sealy, TX

Satisfaction Rating:

5 of 5 stars

Review:
"I Love My Energy Star Boiler!"
I have owned my Energy Star Bosch Greenstar boiler since I moved into my new house, which was in September of 2015. Our builder recommended the brand and model, having had several clients that loved it. The boiler at my previous house could not warm my home enough to be comfortable and we had problems that required maintenance on the boiler. We have had no issues with our Energy Star boiler and we are able to simply flip the switch and our boiler activates, warming our home quickly and to a very comfortable temperature. It worked like a dream during our colder winter months here in Texas. There is really nothing bad that I can say about this great product thus far and hopefully my experience with it continues! I will only be buying Energy Star boilers in the future and I am recommending them to all my acquaintances. Love this product!


Date created: 2016-05-20 Location: seattle, wa

Satisfaction Rating:

5 of 5 stars

Review:
"A Boiler of a Lifetime"
I've owned my boiler for 3 years. We installed it in the house we bought to renovate and then live in. It is a small size boiler that hangs on the wall so it is out of the way and doesn't take up too much space. It also works as a space heater, which is an excellent additional feature. I don't dislike anything about it. It simply works great and we never have to do anything with it. I would definitely buy this again if we purchase a second home for renovation like this one or if a friend did the same i would recommend it.


Date created: 2016-04-04 Location: Atlanta, GA

Satisfaction Rating:

4 of 5 stars

Review:
"Bosch Boiler Is Fine But Could Use Improvement"
My boiler works fine. It heats up very quickly and works fine. The only problem with it is that it doesn't heat the water hot enough for my liking. The water comes out warm to mildly hot which is satisfactory but it doesn't have the range of heat I would like. I have never had to replace or repair it because it has not ever broken and the mildly hot water isn't a big enough deal to warrant a repair. If i had a choice or an option i would chose a different heater initially but at most it works fine and does the job.


Date created: 2016-02-02 Name: Rob S.
Location: Long Island, NY

Satisfaction Rating:

5 of 5 stars

Review:
"Quiet and efficient"
We had the Bosch Greenstar Combi 151 installed two months ago, as part of a conversion from oil to gas. So far we are very pleased with the purchase and installation. The unit is very quiet - you can stand next to it when running and really have to listen to hear any sound. Our home has three zones, and the installer used Grundfos circulator pumps, one for each zone, which are also very quiet. We were a bit concerned going from using a 50-gallon hot water heater to the combi on-demand unit, but have been very pleased with the quantity and temperature of hot water provided by the Greenstar. Water is hot - have had to dial it down a bit. Long hot showers are no problem. Will report if we have any issues going forward, but so far very pleased with the Greenstar.


Date created: 2016-01-11 Location: Cincinnati, OH

Satisfaction Rating:

4 of 5 stars

Review:
"Review of my Bosch whole house boiler"
I have lived in my current house for 4 months only now but the boiler was newly installed shortly before I moved in, in early 2015. I really like the size and quietness of the boiler. I know that it is a somewhat small boiler and I notice that if I fill my bathtub up all the way and my husband takes a shower right after that he starts getting colder water near the end of the shower but it's definitely just because the smaller capacity model is the one that we have. We haven't had any issues or had to replace it yet. But if it did break or we needed a new one after a few years I don't think I would purchase anything other than a Bosch. It is a really nice and sleek boiler. Bosch boilers are the best on the market in my opinion.


Date created: 2016-01-04 Location: Edison , NJ

Satisfaction Rating:

1 of 5 stars

Review:
"The coldest winter"
I purchased my Bosch boiler for my new home few months back. I expected it to be up to the expectations that I had. Given the fact that all my friends with thier own homes got similar models I was very hopeful. It disappointed me completely. There were many repairs during this period. It's almost 8 months now since the purchase. My electricity bills went up a lot and there was not enough heat. During not so harsh winters too, we felt cold because of the bad quality of boiler. I would never refer this to anybody I know . The customer service was extremely poor, they were always in a hurry to hang up the call. It has been a nightmare for me. They have come a number of times and gave me a temporary fix to the issue but it comes up again in a matter of days. It gave me a tough time as I have to take leave from work for every visit of theirs. It was a huge financial loss for me ever since I got this boiler home.


Date created: 2015-12-31 Location: San Antonio, Tx

Satisfaction Rating:

5 of 5 stars

Review:
"An excellent boiler for the money"
I have owned this boiler going on four years now. I really enjoy it because it never fails to provide me with hot water when I need it, but at the same time it takes up very little space, is very economic, and is very energy efficient. This reduces the negative impact on the environment significantly. Although I have never had to use it, the 10 year lifetime warranty and 5 year parts warranty provides me peace of mind. I have never had a single part break, or need servicing in the time that I've owned it. If this boiler were to break, I would definitely not hesitate to order a replacement from Bosch. If one of my friends or relatives were in the market for a new boiler I would not hesitate to recommend Bosch to them. I have had nothing but good experiences with them, and I look forward to at least another four fantastic years with my current boiler.


Date created: 2015-12-18 Location: Muskego, WI

Satisfaction Rating:

5 of 5 stars

Review:
"My boiler has been very dependable for my family's home."
I have owned my boiler for almost two years now and I am very satisfied with the way that it works. It is easy to operate and never causes my family stress. If I had to make a complaint about it, I would have to say that even though I think it works amazingly, my wife believes that it does not always heat the water to the temperature that she wants it to be at. We have never had to repair it, but after about a year, one day it seemed to have stopped working. So we went to take a look and it shut off by itself and all we had to do was turn it back on and get it going again. I would recommend this product to a friend because for me it works incredible and I would probably want to try a different brand if this one stops working. Just to be safe rather than sorry.


Date created: 2015-12-18 Location: Broward, Fl

Satisfaction Rating:

5 of 5 stars

Review:
"Review of Bosch boiler"
I really like the Bosch line of boilers. This line is part of the ZBR series and the Green Starter line. I've been using Bosch boilers for years without a problem. This particular boiler that I have is about thirteen years old and still works perfectly. I really like that they are eco-friendly and it's definitely very efficient. The good thing about Bosch boilers is that they hardly make any noise, which is a plus for my family and I. I've never had to replace it as these things last for years but it might be time to change it in the future since we've had it for a long time. It's very quick to heat up my entire home within minutes. I would definitely recommend it to a friend.


Date created: 2015-12-18 Location: Los Angeles, CA

Satisfaction Rating:

5 of 5 stars

Review:
"This Boiler is awesome!!!!"
I just love the Bosch Greenstar boiler! I purchased it about 3 months ago. I had to throw the old one away, because it was too big and noisy. I decided that it was time for a new boiler and started searching online, checking out all kind of models. I must admit that I didn't know which one to buy. One day a friend was visiting and saw me searching online and he suggested that I should check the Bosch boilers, he apparently had one and was very satisfied with his. So I did some more research on the Bosch boilers and decided to buy a model. When it came I was so happy because it is small and it saves lots of space in my house. Have I mention it is super quiet? OMG as soon as I turned it on I thought it wasn't working, LOL. I love my boiler. It's environmentally friendly, and it saves lots of energy. I'm actually saving money with my bills. It features 10-year full / limited lifetime heat exchanger and limited 5-year parts & labor warranties. Honestly this boiler has made my life easier and happier.


Date created: 2015-12-16 Location: Chicago, IL

Satisfaction Rating:

5 of 5 stars

Review:
"DEPENDABLE BOILER for my Family's home"
We have had this particular Bosch boiler in our home for 2 years now. What we appreciate about the "Greenstar" boiler line from Bosch is that they are Eco-friendly and offer a lifetime warranty or lifetime replacement on their boilers. The boiler runs quietly as well, we have a small home office in the basement and the boiler has never interfered with our work. We have not had to have any maintenance done or repairs done on the Bosch boiler so far. Honestly, we had a different brand before we bought the Bosch brand but my husband's brother works for Bosch and highly recommended it to us. My brother-in-law has one in his family's home and they are very satisfied with theirs. I would highly recommend the Bosch boiler to anyone looking to replace theirs or to purchase a new one. I give the Bosch ZBR Series boilers a "Thumbs Up" rating.


Date created: 2015-12-07 Location: Detroit, Michigan.

Satisfaction Rating:

4 of 5 stars

Review:
"Review of my Bosch Boiler and the quality and service it provides me."
I have owned this boiler for at least 2 years. For the last two years, I have had only one problem with it. My boiler went out. I called Customer Service and the way they treated me was amazing. They were quick and efficient and they made it one of their top priorities to fix my boiler. What is so great about this boiler is the people who work with the company. The people were sincere and quick to fix any problems I might have with it. The service was amazing. Why go with this company? Quick, efficient service, excellent quality, and amazing customer service. Now what isn't so great about this boiler was the pricing! But in the long run, it is very well worth the price. When my boiler went out, I immediately called to have it repaired. My boiler went out about 8 months ago, but when they came out and fixed it, the repair went well. I only went about 3 hours without the boiler and that time includes me waiting on the phone with them, waiting for them to arrive, and waiting for the actual repair work. Usually with other companies I have dealt with, I would have to have waited the whole day! I highly recommend this brand and I would recommend it to my friends and family. If you are looking for a boiler to buy, go with this company. The pricing might not be that attractive, but everything else makes this boiler number 1. Thank you for such great service!


Date created: 2015-11-20 Location: Rochester, NY

Satisfaction Rating:

5 of 5 stars

Review:
"Bosch Greenstar Boiler Review"
I have owned my boiler since April. I had recently bought a new house and knew that the old boiler needed to be replaced. As for what I like, I noticed that my energy bills are significantly lower. I can compare this year's bills against the same month last year - and this year has had a colder Autumn - and the bills are quite a bit less. It also seems to run pretty quiet. The only thing I dislike is the cost. It wasn't exorbitant and I knew I wanted to buy a boiler that would last a long time, so it was worth it, but there were definitely cheaper models on the market. I have not yet had to repair or replace it. If a person was already considering a high efficiency boiler, I would recommend it, particularly in climates like mine.


Date created: 2015-11-02 Location: Sterling heights, MI

Satisfaction Rating:

5 of 5 stars

Review:
"Energy Efficient"
The boiler we currently have is newer, less than a year old. It had to be replaced since the other one stopped working. I really like that this brand is very energy efficient, and the overall lifetime cost is very low. The lifetime cost of using this product is about $13,000 which is great honestly. I also like that it saves me on my water bill, the energy efficient part is the top reason I love this product. The only thing I really disliked was the price but I think it was worth it overall just hit the wallet a little hard, but what items do not. This item is a replacement for our old one, this one has yet to be repaired since it is only a few months old. Our old one lasted about 8 years. The last one only had two repairs, then it could not be repaired anymore. I would buy this brand again on the sole fact that is saves money.


Date created: 2015-10-09 Location: Jesup, GA

Satisfaction Rating:

5 of 5 stars

Review:
"My wonderful Bosch Boiler"
So far I have owned this boiler for 2 years, and so far it has been an excellent product. It is very quiet, which is wonderful in our small home. I can stand roughly 10 feet away and be unable to hear it operate. It is extremely energy efficient as well, cutting my bill down by nearly $45 a month, which on a fixed income, is extremely important to me. It is also fairly small, and was very easy to install. It only took about 10 minutes to get it hooked up. As of writing this, I have no negative things to say about it. So far it hasn't given me any problems. No need to replace it or repair it yet as well. I would without a doubt recommend it to my friends (and I have), and if it ever did break, I would buy the same model again without any doubt.


Date created: 2015-09-23 Location: Philadelphia, PA

Satisfaction Rating:

5 of 5 stars

Review:
"Great boiler for a home"
I moved into my current house about a year ago. The home owner before I moved in lived in this house for 5 years. He told me he hasn't changed the boiler or water heater ever. So I thought moving in that I would have to change the boiler along the way but so far I haven't had any problems with the boiler. It's quieter than most boilers I had and it keeps the water hot for a really long time. 5 people in my family shower back to back in the morning and it keeps the water running hot throughout the whole time. Even if I had to replace it because it broke, I would probably end up buying the same boiler again just because I like it so much. It seems really reliable for a home. I would definitely recommend this boiler to anyone who is looking to buy one.


Date created: 2015-06-08 Location: San Diego, CA

Satisfaction Rating:

5 of 5 stars

Review:
"Incredibly Efficient Space and Water Heater"
We installed the Bosch Greenstar ZWB 42-3 in our newly purchased home in January. While a serious investment, its one of the things I'm most happy with from our remodel. While we live in a relatively warm location, our home is coastal, and often very chilly. When we remodeled our new home we decided we needed some central heating for overcast days, but wanted to make sure we employed something that didn't use a ton of energy. Our home has solar, so we track our energy usage pretty closely, and the boiler, even when used regularly, barely makes a dent. My favorite part about this particular appliance is that it also provides on demand hot water. Showers are now absolutely amazing! My only small complaint is the volume when water heating is being conducted. The boiler is located next to my home office, and the noise it produces when in use can be pretty distracting. All in all, a very champagne problem, but something I would change if I could.


Date created: 2015-03-30 Location: Miami

Satisfaction Rating:

5 of 5 stars

Review:
"Bosch Greenstar, an excellent choice"
I was in the market for a boiler about a year ago, and have owned the Bosch Greenstar ZBR 16-3 for about 11 months now. It has performed impeccably and is very efficient; this is probably due to it's super small efficient design and fuel efficient technology. It was a great improvement from my previous boiler which was a Westinghouse. I have never had to replace anything on it, but that may be due to the fact since it is relatively new. However it came backed with a 10 year warranty which I feel very strongly about and has made me trust the company. The only negative thing about my purchase would probably be the price, I paid quite a premium over my previous boiler but the quality improvement definitely shows. I would recommend the Bosch to anybody in the market for a new boiler since it has met and exceeded my expectations by a large margin.


Date created: 2015-03-10 Location: Richmond, Virginia

Satisfaction Rating:

5 of 5 stars

Review:
"Good, Dependable Bosch Boiler"
I have owned this boiler for 3 years now. It was an replacement for my old one that finally died after 12 years. The winter here is long and cold, and so far this new one has held up great. I really love how energy efficient this model is, compared to my old one that I replaced Bosch helped me reduce my bill by 30%. The price of getting it was pretty steep, but I believe this will remain a terrific investment. Just in heating bills over the last couple of winters, I probably save well over a thousand dollars. In addition I also received a tax credit when I first purchased it, which helped a lot. I am definitely recommending this model to all my friends. If given the chance I will probably buy this brand and model again.


Date created: 2015-03-10 Location: Westford, MA

Satisfaction Rating:

5 of 5 stars

Review:
"Satisfied and Greatful"
I've owned this boiler for only a few months, it's relatively new. I like that it can be hidden well in a house and isn't an eyesore. I keep it in a small closet in my basement, and we barely even notice that it's there. I like that it's very energy efficient and that our bill actually decreased when we started using it. It also makes no noise. Our older boiler made these annoying noises that often freaked guests out if they were staying overnight. They would ask my family and I what the hell the weird noise from the basement was. Since this boiler is relatively new and has a warrantee I haven't experienced any problems. I would definitely recommend this brand to a friend, it has all the best qualities of a boiler anyone could ask for. The only real negative is that it's slightly more expensive than competitors, but I think it's worth it.


Date created: 2015-03-09 Location: Conway, SC

Satisfaction Rating:

5 of 5 stars

Review:
"My boiler saves us a lot of money"
We have had it for 6 months, my energy savings from converting to natural gas with a 95% efficient boiler are tremendous. Not to mention all the space I saved. My dislikes, we need to having the water on full flow out of the kitchen sink when washing dishes. I'm not used to it, so it gets annoying. Have not had any problems with the equipment since the installation. We replaced it because the old system was really old, and we had the money to afford to replace it, so we went for the energy savings. The installation took 2 days. The Bosch Greenstar 151 is great, I tell everybody how much we love it, and how much we save.


Date created: 2015-03-06 Location: Bowling Green, KY

Satisfaction Rating:

5 of 5 stars

Review:
"Natural gas Propane Boiler"
This is by fare one of the best investments I made for my house as fare as heating my house. This boiler uses very little Natural gas to run but, gets the job done! It has a Hydronic pump for the water and I am a big fan of Hydronic powered equipment because they are known for their reliability and not having to make near the repairs that a former boiler may have. I have owned this boiler for 3 years now and every winter my house is nice and cozy for a cheaper rate than my old central heat. I would defiantly buy this boiler again. It has saved me THOUSANDS compared to my Central heat electric bill! I have yet to make a repair on this broiler!


Date created: 2015-03-06 Location: Salt Lake City, UT

Satisfaction Rating:

5 of 5 stars

Review:
"A++ Rating / Greenstar 117,000 BTU Combi Gas Wall Condensed Boiler"
I've owned the Greenstar 151 117,000 BTU Combi Gas-Fired Wall-Hung Condensing Boiler for 4 months, having purchased it for heating my large home in November of 2014. This item has a number of very positive qualities. I enjoy the fact that the boiler is very quiet, and fits very well into the relatively small space where I made the installation. It makes a fine replacement for my old water heater. It is also light compared to other models. There are no filters to replace, so my cost savings is potentially huge! I disliked the relatively high price of this item (3,700.00 +), and the fact that it was only available to me in a single color. ( White ) I have never had any mechanical problems or had to replace any part of my boiler. I would easily suggest that a friend purchase the Greenstar 151 117,000 BTU Combi Gas-Fired Wall-Hung Condensing Boiler for their own home.


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Other Greenstar Reviews

In comparisons on hvac-talk.com between the Greenstar and similar units by Weil-McLain, Buderus and Triangle Tube, there were several positive comments about the Bosch unit. The majority of professionals appear to prefer the other units, but not by a large margin.

Greenstar Warranty

Product registration is required within 90 days of installation for maximum warranty coverage. The warranty for the Bosch Greenstar boiler is comprised of the following:

  • Limited lifetime heat exchanger warranty, pro-rated after the 10th year
  • Limited 5-year parts and labor warranty

 
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