Lennox GWB8-IE Boilers

Lennox GWB8-IE Boiler Overview

The Lennox GWB8-IE is a gas-fired boiler with an efficiency of up to 84.4% AFUE. It features a durable cast-iron heat exchanger and an electronic ignition control which monitors water temperature and turns on the burner only when necessary. The boiler’s titanium burners are corrosion resistant, and a thick layer of fiberglass insulation increases the unit’s efficiency by reducing heat loss. The GWB8-IE is available in six sizes and can be used with a traditional radiator or an underfloor heating system. It is shipped for use with natural gas but can be easily converted to LP gas.

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Consumer Reviews of Lennox GWB8-IE


  • Very Satisfied
  • Somewhat Satisfied
  • Neutral
  • Somewhat Unsatisfied
  • Very Unsatisfied
  • #3 of 6 Lennox Boiler
  • 75% of customers recommended

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Lennox GWB8-IE Boiler Reviews

"Good heat at a good cost"

4.0 rating
Somewhat Satisfied

The GWB8-IE Boiler is a good value boiler for the money. I shopped around for a few different boilers in my price range and found that the GWB8-IE boiler to be the best bet. I like how since it is electronic ignition, it only burns fuel when needed, so I save on my electric bill. It does not have a few great reviews on breaking down, so I will need to be aware of that. Mine has not broken down yet. I would buy the same brand again, and make sure I buy the warranty as other people have seem to have reliability issues with the model.

boston, ma

"Piece of junk."

1.0 rating
Very Unsatisfied

One year old and doesn't work. Comes on but no heat.

Sharon Got

Cleveland, OH

"The boiler is very good, no let downs here."

5.0 rating
Very Satisfied

I have owned my boiler for just under six months. I like that it has never let me down or broken. I don't have any complaints nor have I really experienced any problems with it in the amount of time I mentioned above. There isn't really anything I don't like about it. I have not needed to repair or replace it. I would definitely buy the same brand again. It is very nice on the wallet as well. No complaints here. I might just upgrade to another model if my family continues to grow. I would definitely suggest that anyone who is trying to find a good boiler looks into Lennox before buying another brand.

Memphis, TN

"Best boiler ever!"

5.0 rating
Very Satisfied

I have owned my boiler for five years now and have not had any sort of problems with it. My boiler is standard efficiency and that is the only thing I dislike about it. If I could go back in time and splurge on the energy efficient model I would. I can guarantee that when the time comes to replace my little beauty I will be going energy efficient. My boiler is extremely reliable and I have not had to do any repairs thus far. I have had the machine serviced before and everything went smooth and speedy. Customer service from the phone to the technician was fantastic! This is definitely a brand I would recommend to all my friends and family. No appliance in my home even comes close to my boiler and I am going to keep it that way! I love my boiler and wouldn't trade for any other brand!

Flagstaff, AZ

Other GWB8-IE Reviews

There are a couple of reviews regarding problems with the GWB8-IE on HVAC forums, but the problems appear to have more to do with poor installation than faulty equipment. In a post on doityourself.com, a homeowner with a draft problem found out that the problem was caused by the installation of the damper.

GWB8-IE Warranty

Product registration is required within 60 days of installation for maximum warranty coverage. The warranty for the Lennox GWB8-IE boiler is comprised of the following:

  • 20-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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