Lennox Conservator Boiler Overview

The heat exchanger, blower motor, control board, and other major parts have all failed at least once on my unit. When the heat exchanger fails it emits potentially deadly levels of co. Gas Company shut off my system the first time due to levels above 10,000 ppm. The second time the technician's meter spiked out at 1,200 ppm and the level was still climbing. Don't be fooled by the warranty. It only covers the replacement parts, where labor is the big expense. Replacing poor quality parts with other poor quality parts just means you get to pay for the same failure multiple times. Customer support is of no help.

If you have #2 home heating oil, this oil burner does the job. We have forced hot water and the house heats up fast. Always plenty of hot water for showers, dishes, etc. Runs pretty clean, we've had it for 11 years and no problems to report with it. We recently had our chimney swept and the sweeper was surprised that it hadn't been longer, the chimney was really clean.

I purchased a Lennox cowb2 boiler unit about three or four years ago. It is a very good boiler unit. I am completely satisfied with my purchase. I have not seen as much of a reduction in my utility bill as I would have liked to, but I did see a reduction. The Lennox cowb2 boiler unit is very quiet when running, that is a very nice positive attribute. I think with a few upgrades to my house my energy bill will be right down there where I expected it to be. I have qualified technician come out once a year to check out the system and make sure nothing is wrong or going bad with the system. They have never found a problem. Overall my Lennox cowb2 boiler unit is a great system that I would recommend to anyone that is looking to replace their old worn out system.

Started with Lennox Complete Heat in 1996. Two years later totally replaced with new Complete Heat because of so many problems with first unit. Four years later another completely new unit after prior unit failed. This unit then failed in 2004 and we "upgraded" to a GWB9 which lasted less than 5 years before the heat exchanger developed a leak. This heat exchanger lasted less than 2 years before it also developed a leak. Just paid over $2,000 for replacement of the heat exchanger and many parts. Now unit is backfiring (scary) and short cycling. Local company rep ignores my emails and calls asking which service company can actually fix his product. Cannot reach humans at company Customer Relations number. Terrible products from terrible company.