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LENNOX GWM-IE Boiler

Updated: Dec 7, 2015


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Overview of the GWM-IE

The Lennox GWM-IE is a wall-mounted, gas modulating condensing water boiler. It has an efficiency rating of up to 95% AFUE and earned the Energy Star Most Efficient 2014 label. The unit features an electronic ignition control which monitors water temperature and turns on the burner only when necessary, and its sealed combustion design is intended to reduce sound. The stainless steel, finned tube heat exchanger is self-cleaning, while the stainless steel mesh burner is corrosion resistant. A CPVC flue condensate collector offers protection against corrosion and leaking.

Consumer Reviews of the LENNOX GWM-IE

Compare to Other Lennox Boilers:
Popularity:
#2  of 5 Lennox Boilers
5 of 5 stars 23 reviews

  • Very Satisfied
    21
  • Somewhat Satisfied
    2
  • Neutral
    0
  • Somewhat Unsatisfied
    0
  • Very Unsatisfied
    0


Date created: 2015-12-07 Location: Charleston,Wv

Satisfaction Rating:

5 of 5 stars Very Satisfied

Review:
"LOVE MY BOILER!"
Love my boiler! It helped my heating bills drop like crazy. They cut in half. This boiler is amazing. It was easily installed and we have had it over 3 years now and knock on wood, we have had no problems. I have heard from several people that Lennox was a good brand and now I am seeing it first hand. You can tell it is very well made in comparison to the other brands. It has so many pros and honestly the only con I can think of is that it is more on the high side of price. As the old saying goes, you get what you pay for. I believe that to be true, most of the time. You pay for quality. My neighbor has had a Lennox boiler like this for a long time (like 30 years) and guess what? It's still kicking! If that doesn't say something, I don't know what does! Try it... you'll love it!


Date created: 2015-12-04 Location: Newport Beach California

Satisfaction Rating:

5 of 5 stars Very Satisfied

Review:
"Great product but a little pricey."
I purchased the Lennox GWM-IE boiler a little over a year ago. The thing I like most about this product is the performance. This unit can consistently provide enough hot water for my entire house without having to wait very long to complete the daily tasks that I need to do. While the upfront cost for the unit was a little expensive the money it has saved me on my gas bill has more than paid for it already. I did experience a slight problem when purchasing it though. The first unit that I purchased and had installed was completely dead on arrival but the company I had purchased it from took care of it right away at no extra charge to me. Overall I would highly recommend this brand of boiler to anyone that asked me my opinion.


Date created: 2015-12-04 Location: Charlotte, NC

Satisfaction Rating:

5 of 5 stars Very Satisfied

Review:
"Great unit for a small home"
My family and I rent out a home in Charlotte which 3 years ago we renovated and installed new units in. We received recommendations for installing a Lennox unit into the home and decided that after hearing great reviews for this water boiler, it was going to be the unit we would purchase. It has worked outstanding so far, the 3 years it has been on that house, we have never had any problems with it. In fact, our most recent tenants were surprised at how quiet it operated and how it didn't wake them up during their sleep. It is not only extremely efficient compared to other water boilers, but it modulates itself when it runs, meaning that it does not disturb anyone. It is a great unit and has not given any of my tenants any problems. I highly recommend Lennox and this water boiler. The performance and reliability we have gotten out of our unit is amazing.


Date created: 2015-11-13 Location: Bouler, CO

Satisfaction Rating:

5 of 5 stars Very Satisfied

Review:
"My Lennox Boiler"
My Lennox gas boiler is amazing! I bought it for my home last year, and I have never been disappointed by it. It was easy to have it installed. Since I bought this boiler, my heating bills have decreased dramatically. I love how quiet it is as well as its energy efficiency. There's nothing I dislike about this boiler, and I have not had to repair it yet. I would absolutely recommend this brand to everyone I know.


Date created: 2015-11-09 Location: Baltimore, MD

Satisfaction Rating:

5 of 5 stars Very Satisfied

Review:
"The boiler I have in my household is the GWM-IE Boiler, a high-efficiency, gas-modulating condensing water boiler."
I have owned this boiler for one year. I purchased it for my home and it cuts my heating bills in half. Very pleased with the overall performance. I like some features of this boiler, such as its efficiency rating of up to 95% AFUE and electric ignition control burns fuel only when necessary which reduces energy costs for my bill. It is an Energy Star qualified machine, which means it meets U.S. federal guidelines for energy efficiency. I do not like the noise it makes when it starts. I also smelled something during its working period, but this is really not a big issue for me at least. I did not have any negative issue with this boiler until today. I do not have to repair or replace it right now. If this boiler retires, I would buy the same brand again, based on its current performances. I also would like to recommend it to a friend of mine.


Date created: 2015-10-19 Location: Atlanta, GA

Satisfaction Rating:

5 of 5 stars Very Satisfied

Review:
"Lenox Home Boiler Review"
The Lennox GWM-IE home (residential) boiler is an excellent alternative. My boiler is less than a year old. I looked at several boilers before settling on this one. The installation (I had a professional install it) was quick and painless. They worked with my time frame so that I was not inconvenienced. This has an efficiency rating of 95 which I truly love! This really lowers my utilities bills and my budget loves that! It is gas modulating, so that saves money. It is quiet and I have not had any problems yet. I would recommend this to a friend or family member. Overall, there is nothing that I dislike about the Lennox GWM-IE home / residential boiler. It is well worth the up front cost!


Date created: 2015-10-05 Location: Gainesville, FL

Satisfaction Rating:

5 of 5 stars Very Satisfied

Review:
"Great boiler for a Nice price!"
I have had it around 5 months. As I am remodeling a house, I had to buy multiple different items and I love this boiler, it works fast at heating the water. I don't think there is any negative other than it was a bit difficult to hook up, and I haven't had to replace it at all. I will buy Lennox again and I am already pricing one for the next house. I have recommended it to friends as well.


Date created: 2015-09-28 Location: Austin, TX

Satisfaction Rating:

5 of 5 stars Very Satisfied

Review:
"My GWM boiler is amazing!"
My Lennox brand GWM boiler is amazing. It is gas powered so that means it's very kind to my pocket and this is not to mention its incredible efficiency. It is also self modulating and can power up at any rate I want, which is great if you have kids.


Date created: 2015-09-23 Location: Pensacola, FL

Satisfaction Rating:

5 of 5 stars Very Satisfied

Review:
"Love My Boiler More Than My Cat"
I moved into my current place 4 years ago. I had never lived in a place with a boiler system in place before. I won't lie, I was apprehensive at first. Coming from Ohio I'd always used more... conventional, I guess, systems of heating my home. When I first heard that this ran with the aid of water I was concerned about its effectiveness. That has not been a problem. In the whole time I have lived here this has been a great heating system. In the winters when I get kind of cold and turn it up, my energy bills still stay very modest. Better yet, this is a super reliable system. I haven't had to ask the landlord about repairs or updating of the system a single time. When I move into a permanent residence I will certainly keep an eye on Lennox boilers as a cost saving, energy efficient means of heating my place.


Date created: 2015-08-26 Location: Wheaton, IL

Satisfaction Rating:

5 of 5 stars Very Satisfied

Review:
"From freezing cold to toasty warm"
I have owned this boiler for a little less than a year. I bought this boiler in November and it has kept me warm all winter without any problems. I like the fact that it keeps my house warm while still being efficient. It's saved me a lot on my energy bill and I don't have to sacrifice my comfort in my home temperature-wise. I've seen a huge difference in my bills as compared to my previous boiler. I don't have any dislikes about it thus far, but it might be a little big for some homes/might take up too much space for some homes. I have never had to repair or replace it. I would recommend this brand to a friend. So far it has been very reliable and every time that I have contacted Lennox about the product they have been very friendly and were able to help me.


Date created: 2015-07-24 Location: Akron, OH

Satisfaction Rating:

5 of 5 stars Very Satisfied

Review:
"Lennox Boiler - Very Satisfied"
My fiance and I had this boiler installed in our home about two years ago, and so far everything has been perfect! We mostly didn't know much about boilers and chose this boiler initially just because we were familiar with the brand and had read a few good reviews. It helped to cut my heating bills - always a plus! We have never had to repair or replace it, but we do have the 15-year warranty, so I'm not too worried about it. Price was great for the quality. Highly recommended!


Date created: 2015-07-16 Location: Temple Terrace, FLorida

Satisfaction Rating:

5 of 5 stars Very Satisfied

Review:
"A new world with a New Boiler"
I bought this boiler recently (in the last six months) for a home that I just purchased. Even though I live in Florida, an area where heat is not often a priority, there are winters that require more than others. Plus, being older, I like it warmer than I used to. This boiler was purchased in January and reduced my heating bills from the couple of months using the old boiler by a third. I was not overly happy with some of the installation problems I had but after a couple of tries I think we have ironed out everything. I would heartily recommend this unit but be careful of the contractor you choose.


Date created: 2015-07-16 Location: Vancouver, WA

Satisfaction Rating:

5 of 5 stars Very Satisfied

Review:
"A step up in the right directions for my kids"
Unfortunately my kids heat pump broke down this last winter, and it was broken beyond repair. So, I decided I would buy them a boiler. I decided to go with this boiler because of the good reviews, and boy was that a good decision. I bought it about 6 months ago, and their heating bills have pretty much dropped in half. The install wasn't the easiest, but It sure has saved them, and me, because I would sometimes help out with the bills, quite a bit of money. One thing I don't like about it is the lack of a filter. But I only don't like that because, well, I like being able to see whats being filtered out. But that's just being nit picky. You really don't need a filter on these because they're just recycling water to heat the house. I would definitely go with this boiler again and would recommend it to most of my friends. There are a few situations where a boiler wouldn't work depending on your piping, but for most, it's A-okay.


Date created: 2015-06-12 Location: Cedar Rapids, Ia

Satisfaction Rating:

5 of 5 stars Very Satisfied

Review:
"Lennox GWM-IE Boiler Works Beautifully!"
I bought this boiler about a year and a half ago after buying a property and deciding to flip it. The first thing I noticed was how quiet it ran! After being unable to sell the home, I decided to rent it out. That meant I had to be doing the maintenance. That boiler has not caused me a single problem thus far. I believe that with yearly maintenance this boiler should work for a very long time to come. I would recommended this Lennox boiler to my friends and to my family who are in need of replacing or updating their current boiler.


Date created: 2015-06-05 Location: Oklahoma city

Satisfaction Rating:

5 of 5 stars Very Satisfied

Review:
"Lennox GWM-IE Boiler"
I have a few rental properties and a have installed the Lennox GWM-IE boiler in all three of them. So far I am extremely happy with the quality. I've had zero problems over the year that I've had them. All three are being used and they are all still in great working order. They are very good quality. When you rent out properties, people seem to use appliances harder than they would if they owned it. Which then is more money out of my pocket just because people wear them down faster. I have had to replace other brands more than I'd like to, so far these are holding up well which makes me very happy! As long as these continue to hold up, I would consider buying them again.


Date created: 2015-05-22 Location: Fort Worth, TX

Satisfaction Rating:

5 of 5 stars Very Satisfied

Review:
"I installed a high efficiency Lennox boiler one of my rentals homes."
I bought this particular Lennox GWM-IE high efficiency boiler for one of the rental homes that I own about 2 years ago. This particular home previously used a heat pump for heating during the winter months, and used an electric water heater. This Lennox boiler now provides heat and hot water to the entire 1500 square foot house. As a result, the electric bill has gone down substantially, and the gas bill remains low because of low natural gas prices right now. I love how quickly this machine works and how quiet it is during operation. Another great thing about this boiler is that the hot water does not tend to go out when multiple people are using it. This used to be a problem with the electric water heater. I have not heard any complaints so far about this Lennox model. It is still relatively new so that is to be expected, but I have no regrets about buying this high efficiency boiler. I would definitely buy it again and would recommend it to all my friends.


Date created: 2015-05-18 Location: Claremont, NC

Satisfaction Rating:

5 of 5 stars Very Satisfied

Review:
"My lennox boiler"
I have had my Lennox boiler for just over 6 months. I love the fact that it is very energy efficient and has caused our electric bill to fall which is saving us a lot of money each month. My one issue with the boiler is that I think it is a little loud, my wife disagrees with me on this. The boiler works great and with yearly maintenance should work for a very long time to come. I would and have recommended Lennox boilers to my friends and to my family who are in need of replacing or updating their current boiler. I have learned that if you buy quality products, and yes they might cost more, they will last longer and save you money in the long term. In the past I have bought cheaper items and they have cost more than buying the more expensive item that could have saved me money.


Date created: 2015-05-08 Location: Seattle, WA

Satisfaction Rating:

4 of 5 stars Somewhat Satisfied

Review:
"Fairly happy with Lennox boiler"
I've owned the boiler for going on two years now. I like that it is quiet and efficient and it has reduced my heating bill compared to the previous boiler. I am a little disappointed that I'm not seeing the savings that I expected based on 1) the seller/installer and 2) experience of a friend who has the same model. I was told by the seller to expect 40% savings over my old model. I have seen savings but only at around <30%. That is good but I was expecting more and perhaps could have gotten those numbers from a less expensive brand or model. I have it in an unusual location (small closet near back door, a little drafty) that may be affecting this. I will say that it does look like a very solidly build unit compared to some I've seen so I get the feeling that the workmanship is good. It does provide all the hot water I need. My old boiler sometimes had a funny smell but the Lennox must be "unscented" because I don't smell a thing, ha.


Date created: 2015-04-27 Location: Allyn, Washington

Satisfaction Rating:

5 of 5 stars Very Satisfied

Review:
"Best Residential Boiler on the Market Today!"
I have dealt with boiler systems since I was a child. My father owned one for the house I grew up and it did a great job at heating our home. So naturally when I gained the ability to make the choice of what type of system Id choose to heat my home it was obvious I would go with a boiler system. I have only owned one for myself for about 2 years now. So far in my 2200 square foot home this system has not done me wrong. I have had it for 2 winters now (1 of which was mild and one of which was quite chilly in terms of temperatures go). Prior to having this system I only had baseboard heaters which generally are not very efficient and are also a fire waiting to happen. We have since removed all of those and replaced our heating systems with the Lennox GWM-IE Boiler system. To me this has been a lifesaver as far as cost to heat my home goes. Its also very efficient. Best of all it is an energy start qualified system which gives you a bit of a rebate with your local power companies if you live in certain areas, as well as a possible tax break. I do not dislike anything about this boiler as of todays date. It did cost me a pretty little penny to get the system installed and up and running, but the benefits far outweigh the costs of the system. Lennox is a very trusted brand in my book, and prior to purchasing this boiler I did do quite extensive research into different brands to find out which one is most trusted. Lennox came out on top. They have been around for quite some time as an established and trusted company. I would definitely recommend this product to my friends and family if they are ever in need of a new heating system. I get this system 4.5/5.0 stars only because the price was a bit more than i would have liked to pay, not that it wasn't reasonable, but it was still quite a bit.


Date created: 2015-04-24 Location: Miami, FL

Satisfaction Rating:

5 of 5 stars Very Satisfied

Review:
"Great boiler for your buck"
I have owned my boiler for just a few months and I absolutely love its performance. It is a little big for the space that I have available, but even being as big as it is, it's worth every penny. Not only has my heating bill decreased by about 25%, my home feels warmer quicker and without the nasty smell I've gotten when using other boilers. Prior to replacing my older boiler, I did about two months of research and discovered that other user reviews were not wrong. This is the best boiler in the market right now if you are looking for an efficient, energy saving, and valuable boiler. This truly is the best boiler for your money. I will and have recommended it to my friends and family.


Date created: 2015-04-17 Location: New York, NY

Satisfaction Rating:

5 of 5 stars Very Satisfied

Review:
"Lennox boilers are the way to go!"
My Lennox GWM-IE boiler is my dependable boiler for all my housing needs. I've never had any issues or outages or needed to repair it in any shape or form. I love knowing that I'm getting efficient use out of it and it stays quiet in its use. The shape is easy to fit in my basement and is ergonomically easy to place and move around as need be. My family has only experienced reliable comfort through our Lennox boiler. I've had this model for about a year now and no complaints thus far. It really is different from other boilers in that it only uses up as much as my family and I need. I feel like previous boilers broke down more often because they were generating heat when it wasn't needed. I have also called customer service about routine questions and have always been met with courteous help. Couldn't ask for much more and I would highly, highly continue purchasing from Lennox and recommending their brand and appliances to friends and family -- in fact, I already have many times over!


Date created: 2015-03-05 Location: Birmingham, AL

Satisfaction Rating:

4 of 5 stars Somewhat Satisfied

Review:
"I wouldnt trade this in for another one!"
I have only had this boiler for less than a year. I moved into a foreclosed home and had to purchase it. I love this boiler. My last home was all electric so I knew what my bill would have been if I would have stuck with using electric instead of the boiler. So far I have not had to replace nor repair it. It is running like a champ. I was recommended this by a gentleman at Lowes who has the same boiler in his home. At first I was skeptical and thought he was just telling me his story so I would purchase it, but I was wrong. This thing is amazing! I would recommend this to a friend. It has really helped with keeping my bill low and still being just as nice as using electric. Of course we all need lower bills and this will help tremendously!


Date created: 2015-03-05 Location: Dothan, AL

Satisfaction Rating:

5 of 5 stars Very Satisfied

Review:
"My review of my Lennox GWM-IE"
I've had this boiler for about six months. I bought this boiler in October of last year, right about the time that it started to get chilly. I remember how high our heating bills got and I wanted to do something about it this winter. Had this installed and my heating bills were cut in half compared to the previous year. I haven't really had it that long, so I haven't needed to repair anything on it yet, but I have been told by others that they last a long time. I like it because of Lennox's reputation and warranty, and because it's Energy Star qualified. I am very happy with this boiler, and I plan on having it a long time. I would definitely buy it again, and would (and have) recommended it to my friends and family. If you're looking for a boiler, look no further than Lennox.


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Other GWM-IE Reviews

There are very few online reviews regarding the GWM-IE on HVAC forums. In reply to a consumer asking about the GWM-IE on hvac-talk.com, several professionals said they preferred other brands, with most mentioning a similar model by Weil-McLain. It was also mentioned repeatedly that installation matters more than the brand or model.

GWM-IE Warranty

Product registration is required within 60 days of installation for maximum warranty coverage. The warranty for the Lennox GWM-IE boiler is comprised of the following:

  • 15-year limited warranty on the heat exchanger
  • 10-year limited warranty on remaining covered components

Labor costs are not covered by the warranty.

 
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