BUDERUS G115 Boiler
Updated: Jun 18, 2017Write a review
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Overview of the G115
The Buderus G115 is a discontinued oil-fired, low-temperature cast iron boiler. The G115 had a heating capacity of 74,000, 98,000, and 120,000 BTU's, depending on the model. Boiler water content ranged from 8.7 to 12.9 gallons, and the oil firing rate ranged from .60 to 1.0 GPH. The boiler featured an insulated jacket to reduce stand-by heat loss, and an optional Logamatic control managed most control functions of the heating system.
Date created: 2017-06-18
Location: Bennington Vermont
I see a lot of bad reviews on here and it's most likely the installers and service techs that are the problem. I've installed dozens and service dozens more. There is not a better boiler out there. This boiler is definitely 100% the best. It requires the least amount of service. Also I found that when a Carlton ez burner is put on it usually causes more problems. I would recommend a Riello or Beckett. To the people giving a bad rating I would recommend switching service companies.
Date created: 2016-11-17
Name: Paul Whittaker
Location: Bucks County, PA
"well engineered, solid design."
I have installed dozens Buderus oil fired boilers, with the riello burner. And service many more. Rarely ever a problem. Installer and service tech must know what they are doing, Buderus only makes the heat exchanger, which is well designed and made, most problems likely are not related to the buderus part itself, but a failed or improperly used component. These boilers are far and away better than the much more common brand guys put in, but are more expensive, and require more effort and knowledge on the installers part. The Riello burners just keep on going, very reliable, well designed, easy to fix when you know how they work. Much better than the domestic counterpart, for simplicity, efficiency, and clean burn.. I do not care for the logamatic controls, prefer simpler cheaper controls, but that is just me.
Date created: 2016-11-02
Name: Rob T.
Location: Norwalk, CT
"Trouble-free, efficient boiler"
I'm not a plumber or specialist in boiler installation. I'm a homeowner, an engineer, and have installed Buderus + Logamatic controllers by myself in my last two homes - yes, they are heavy! I've been using their cast iron boiler and its companion indirect water heater for 11 years now in my current home. Aside from annual cleaning/service from a technician, this system has needed no service whatsoever (aside from replacing the anode in the water heater) and is running as efficiently as ever - very. Admittedly, it's hard to get much out of Buderus, so my recommendation is to hire an installer with experience with Buderus and plans to service the equipment as needed. If he installs it right, chances are you won't be calling him much, if ever.
Date created: 2016-02-15
Name: P. Sokoloff
Location: Boston, MA
"Worse boiler ever!"
We bought this boiler after our 25 year old boiler died on the recommendation of our oil company. They had been very helpful for years so we trusted their opinion and didn't do a lot of research before installing it. What a mistake! We would be broke if we didn't have a service contract because we have averaged 8-10 service calls since year 3. One year we had 15 calls in 1 winter season. They even sent a Buderus rep to try to figure it out! What a piece of junk! Never again. Give me an old American Standard cast iron boiler any day!
Date created: 2016-01-03
"Would not recommend"
We've had this boiler for 15-20 years and it's been nothing but problems. We've replaced many parts and it requires constant maintenance. Stay away from this company.
Date created: 2015-11-28
Name: B. Carter
Location: Sitka, AK
"Be very, very careful about G115/Indirect Water Heater Combo"
Our house here in Alaska was built in 2004 with the G115-21/lt160 combination with the Riello BF3 burner. By 2011, the previous owner had to pay our local mechanical contractor (@+$150 per hour) to pull the lt160 from under the G115 and replace it (another +$1800). This past summer, the boiler began leaking from the pressure relief valve. The coil on the second lt160 had failed. After getting a $3500 quote to replace from the same mechanical contractor, I did enough research and calling around to realize that many, many Buderus indirect water heaters have this problem. One Seattle contractor said they have a 50% failure rate on the water heaters! That is very bad! There were so many failures that he cut one of the failed tanks apart and found that the coils were formed with "wrinkles" in them, which causes erosion of the tubing interiors and early failure (higher erosion rates with hot water and constant flow). The key, of course, is better maintenance, but the cost can be high. Replacing the anode that prevents coil corrosion can be $300-$600 per time, and has to be done at least once every two years and better if done every year. You have to turn off the domestic water, depressurize the house, and drain the tank each time. By the time you do that two times, you might as well have bought a stainless indirect water heater. As for the Riello burner, it was pretty good, but just the basic "emergency" kit costs $253 for getting it up and running, and that doesn't include our local company's upcharge. In sum, I would avoid the "over-and-under" Buderus at all costs. If you use the GW115 series, use the Beckett burners for serviceability. Use a stainless steel indirect water heater (Triangle Tube and Super Stor were recommended to me, I found a trade-out SST-45 for $400 in Juneau), and be prepared for correspondence with a company that can't admit it has a problem and won't come clean with its customers or its "front-line" service companies.
Date created: 2015-03-27
Name: non ya
"Junk, read warranty"
Junk, 1-year warranty on parts.
Date created: 2015-01-01
Name: Vincent S
Location: Huntington, NY
"10 years and going strong!"
I started with oil and a Riello gun with my g115/4 Buderus. It ran like a watch. I onverted to gas in 2008, and it still runs like a watch. I recently had to replace my Wayne Gas Burner/Gun with a Carlin, a non- Buderus issue. An aquastat relay - non-Buderus. The Taco conduit to the expansion tank rusted closed and blew a relief valve. I blame Long Island water for that. My furnace and boiler run great, always have. The parts around it go, like on every system. Generally speaking, everything is made like garbage. Everything - kitchen appliances, washer/dryers - have a 7 -10 year lifespan. From what I have noticed, with my central ac and Buderus, installation, calibration and maintenance are everything. If you are looking for a Buderus, or looking for someone to maintain it, go to the Buderus website and they have certified installers and companies that know these things like that back of their hand. If you are looking for a new system, and they are on the Buderus website, and that own company's website has a big blue Buderus on the home screen, chances are you are going to be okay. I have had people come in to my home, and sent out because I can see the look on their face when they look at my system.
Date created: 2013-01-03
Name: Bob Cacciatore
Location: East Hartford, CT
"G115 Buderus Oil Boiler - Help!"
Please contact me if you have/know a qualified Buderus service technician in the Hartford area. We have Glastonbury Mechanical at present. They installed this boiler new 2 1/2 years ago but don't seem to know how to maintain it and I'm skeptical that it was installed properly to begin with. Thanks for your help [email protected]
Date created: 2012-01-31
Name: Chris Johansen
Location: Fairbanks, Alaska
Years owned: 15
I just hit 28,000 hours on the hour meter on my boiler and have done nothing but change the nozzle every year and give it a good cleaning. I burned over 22,400 gallons of heating oil in this boiler and have spent less than $100 in maintenance parts in 15 years. I installed this boiler in a 5000 sf house in Alaska with radiant heat. For the record, I'm not a plumber not do I work on boilers for a living. Over time components of the computer have ceased to function but I have been able to keep it operating and the house warm with minimal effort. It's -40f right now and the house is very comfortable. Next summer I'd like to get rid of the computer as I currently run the boiler on manual instead of auto. Would I buy another Buderus? You bet I would. Very pleased with this equipment.
Date created: 2011-07-15
Name: Matt H.
Location: Gorham, ME
Years owned: 5
I am very surprised by the number of poor reviews of the Buduerus boilers. Being a heating tech myself and working on many different types of boilers, you will not find a better boiler. Almost every poor review I have read points to a lack of experience by the service tech installing or servicing the equipment. When you buy any boiler you need to ask questions, like: "How many do you have in the field?", "Do you carry replacement parts on your trucks?" When setup correctly, these units run quietly and efficiently. Find better techs.
Date created: 2010-06-10
Name: A.M. Leonido
Years owned: 1
Buderus 115 with side tank for hot water and logamatic controls. In a word, fantastic! Excellent performance, plenty of hot water, very frugal with fuel oil consumption. Great heat output. Burned a full 1/3 to 1/2 less oil than previous burner! I was even more surprised how little oil it used when I flipped the burner into summer mode! Only 50 gallons of fuel oil for 6 months of hot water. (April, May, June, July, August, October) I thought I needed a full tank, what a pleasant surprise! Wish I put it in sooner.
Other G115 Reviews
Online comments about the G115 are quite positive. On several online forums, including doityourself.com, there are comments about problems with the Riello burners. Professionals on hvac-talk.com call the G115 a really good and efficient boiler, explaining that this boiler was used for years in Europe and is proven technology. Professionals on nepacrossroads.com note the unit's efficiency and state that it is also easy to service.
The Buderus G115 warranty is comprised of a 1-year limited warranty on the boiler, a pro-rated lifetime warranty on the heat exchanger, and a 5-year warranty on the burner. Labor costs are not included in the warranty. Change in owner or relocation of the boiler terminates the warranty.