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LENNOX G40UH Furnace


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Furnace Filters for the LENNOX G40UH

Air Flow Configuration Cabinet Width Filters
All 14−1/2" 1 14x25x1 filter
(bottom air return)
1 16x25x1 filter
(side air return)
All 17−1/2" 1 16x25x1 filter
(side air return)
1 16x25x1 filter
(bottom air return)
All 21" 1 16x25x1 filter
(side air return)
1 20x25x1 filter
(bottom air return)
All 24−1/2" 1 16x25x1 filter
(side air return)
All 24-1/2" 1 24x25x1 filter
(bottom air return)
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Consumer Reviews of the LENNOX G40UH

Compare to Other Lennox Furnaces:
Popularity:
#17  of 18 Lennox Furnaces
1 of 5 stars 3 reviews

  • Very Satisfied
    0
  • Somewhat Satisfied
    0
  • Neutral
    0
  • Somewhat Unsatisfied
    0
  • Very Unsatisfied
    3

best product icon  What are the 10 Best Furnaces?

Date created: 2010-05-25 Name: MLL
Years owned: 5

Satisfaction Rating:

1 of 5 stars Very Unsatisfied

Review:
"Continual Break Downs"
We have a g40uh gas furnace installed in late 2005. I have just made my 4th service call due to a wire coming loose causing the fan to not start. While seemingly simple due to the cheap parts in this model, it will not stay fixed and short of spending thousands for a new unit Lennox has no solution. I was happy to see a Lennox unit but now am wondering if the former quality of the brand is long gone.


Date created: 2010-03-21 Name: S. Jones
Years owned: 3

Satisfaction Rating:

1 of 5 stars Very Unsatisfied

Review:
"Lennox furnace"
I have a 3 year g40uh (X)series Lennox gas furnace that does not blow heat. The technician charged $124 to fix the combustion air inducer. He said that the motor for this model has been painted on the inside and the paint become flaky with heat and ultimately will clog the motor. The replacement motor has also been painted and his recommendation is to buy a new American Standard Ace model gas 80% furnace. Does anyone know if this interior paint problem of the motors is real?


Date created: 2009-10-04 Name: J GIMPEL
Years owned: 5

Satisfaction Rating:

1 of 5 stars Very Unsatisfied

Review:
"Lennox Gas Furnace"
The builder installed a Lennox g40uh(x) series gas furnace In the last 3 years when it is time to turn on the furnace, the tube passageway to the air flow was clogged not allowing the burners to light up. Does anyone know why this is happening and can tell me what to do to prevent this from happening


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LENNOX G40UH Model Numbers

The G40UH is available in different models which vary in efficiency and capacity.

Model Number AFUE BTUs per Hour
G40UH-36A-070* 80 66,000
G40UH-36B-090* 80 88,000
G40UH-48B-090* 80 88,000
G40UH-48C-110* 80 110,000
G40UH-60C-110* 80 110,000
 
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