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o23v oil furnace up to 83% afue
Home Comfort Systems
O23V
Variable speed for superior comfort
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Quiet
Healthier
Efficient
exclusive silentcomfort™
technology maximizes your
comfort while minimizing sound
The variable speed motor ramps up
to speed slowly, so there’s no sudden
blast of air at startup. A specially
insulated cabinet further reduces
operating sound.
slowly circulates air for better
indoor air quality
delivers significant energy
savings all year
When you set your thermostat to
“FAN,” the Oꢀ3V continues to
slowly circulate air throughout your
home. That means you can run the
fan constantly without substantially
increasing operating costs.
The Oꢀ3V has a heating efficiency
of up to 83% AFUE. Compared to
an older furnace, the Oꢀ3V can
dramatically reduce your utility bills.
As an added benefit, the Oꢀ3V’s
variable speed motor uses about
two-thirds less electricity than a
standard motor. During cooling
operation, this typically results in an
efficiency gain of 1 SEER (Seasonal
Energy Efficiency Ratio), which can
add to your energy savings.
It also means better indoor air
quality—low-speed fan operation
increases the effectiveness of your
filters, allowing them to capture
and remove more contaminants.
3-year heating savings
variable speed operation
$4000
$4033
Full Capacity
$3500
$3000
$2500
Gradual
Deceleration
Gradual
Acceleration
Humidity
Control
Added
Efficiency
$2194
$2000
Off
Gradual acceleration and deceleration of the variable speed
motor significantly reduce sound.
0
AFUE
83
%
83
%
vs. 65%
vs. 55%
Less noise. Less humidity. More comfort.
83% efficient 023V oil furnace vs.
55% and 65% equivalent AFUE units
This chart depicts potential energy savings you can
expect from the O23V furnace versus older furnaces with
lower efficiency ratings. Criteria used in this example
are 2,000 full-load heating hours, with a 80,000-Btuh
heating design load and $1.90 per gallon for oil. Your
actual savings will vary depending on the weather, local
fuel rates and your lifestyle.
Source: Energy Information Administration,
U.S. Department of Energy national average energy
rates, 2005 forecast.
3
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continuous comfort netWorK
the o23v variable speed furnace is designed to easily integrate with other quality Lennox® products, providing
a total home comfort solution:
Xc21 air conditioner is the most quiet and efficient central air conditioner you can buy.**
pureair™ air purification system cleans the air in your home better than any other single system you can buy.
harmony iii™ Zoning system provides customized, room-to-room comfort.
dave lennox Signature® collection o23v specifications
O23V Upflow
AFUE
V2/3-70/90
83%
V3/4-105/120
81%
V5-140/154
81%
Dimensions HxWxD (in.)
HxWxD (mm)
54 x 19-1/2 x 30-5/8
1372 x 495 x 778
54 x 19-1/2 x 30-5/8
1372 x 495 x 778
54 x 22-1/2 x 33-1/8
1372 x 572 x 841
Note: Due to Lennox’ ongoing commitment to quality, all specifications, ratings and dimensions are subject to change without notice.
Lennox is proud of the
fact that these products
have earned the Good
Housekeeping Seal.
Annual Fuel Utilization Efficiency (AFUE)
Oil-fired forced-air furnace
THIS MODEL
81%-83%
more energy-efficient
78%
87%
**A combination of sound ratings established per ARI’s test standard: ꢀ70 and efficiency ratings established per ARI’s test standard: ANSI/ARI ꢀ10/ꢀ40-ꢀ005.
4
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innovative features for enhanced comfort and efficiency
heavy-gauge steel heat exchanger –
Allows air to glide evenly over its smooth surface
for maximum heating efficiency.
innovative combustion chamber –
Constructed from alumina-silica ceramic fiber, provides
quiet operation and high efficiency.
beckett burner –
Delivers super-efficient combustion for greater fuel
economy. It’s one of the finest, most trouble-free
burners in the industry.
heavy-duty fuel pump –
Provides quiet, reliable operation with fast shutoff
of oil flow.
variable speed motor –
Highly efficient motor quietly controls flow of air for
added humidity control, indoor air quality and comfort.
insulated blower compartment –
Minimizes operating sounds.
O23V
Up to
durable, insulated steel cabinet –
Built to last and coated with a high-quality paint finish.
83% afUE
5
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Air conditioner or heat pump
Thermostat
Furnace or air handler
Filtration device
Germicidal light
Indoor coil
Humidifier
HEPA bypass filtration system
Energy recovery ventilator
10 Supply duct
11 Return duct
customiZe your comfort
Lennox® heating, cooling and Healthy Climate® indoor air quality products are designed to provide efficient, economical
comfort—not only as individual units, but also together as an integrated system. This combined network of products
delivers on every comfort count, from consistent temperatures and balanced humidity to improved indoor air quality.
dealers you can count on
Choosing the right dealer for your home’s heating, cooling and air quality needs is every bit as important as choosing the
right brand. We think you’ll agree our independent dealers are a big reason you can count on quality customer service
whenever you call. Your Lennox dealer’s dedication to quality shows in his knowledge, training and expertise in designing
the right system for your home, installing it properly and keeping it running perfectly for many years to come.
© Lennox Industries Inc. 2005
(95M78) O23V 8/07
PC50736
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