Lennox O23 Manuel utilisateur

O23 Oil Furnace ◆ Up to 83% AFUE

Home Comfort Systems

LENNOX’ ELITE® SERIES

O23

Clean, quiet and comfortable home heating

The Elite® Series O23 oil furnace offers a clean, quiet and economical way to

keep your home warm and comfortable. High-quality components like the

Beckett burner reliably deliver heat to every room—year after year, with little

maintenance required.

CLEAN, QUIET AND COMFORTABLE HEATING,

WITH EASY MAINTENANCE

Built to exacting standards, the O23 furnace not only keeps you cozy and

comfortable—it also keeps your energy costs at a minimum. With efficiency

ratings of up to 83%, the O23 produces more heat per fuel dollar, which

means you’ll stay warm for less.

Efficient operation can result

in significant energy savings

Quality components ensure

long-lasting reliability

Simple, durable design

allows easy maintenance

and serviceability

Compact size fits easily in

almost any closet, crawlspace

or basement, leaving plenty

of room for add-on

air conditioning

Elite® Series O23 Oil Furnace

EFFICIENCY RATING

Up to 83% AFUE (Annual

Fuel Utilization Efficiency).

WARRANTY*

Limited lifetime warranty

on the heat exchanger.

5-year limited warranty

on all remaining covered

components.

Efficient Can save you

money each year on your

utility bills.

The O23 furnace is designed to

deliver lasting value and energy

savings. With heating efficiencies

of up to 83% AFUE, the O23 can

drastically reduce your energy costs,

compared to older furnaces.

This chart depicts potential energy savings you can

expect from the O23 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.

AFUE

vs. 55%

vs. 65%

$4000

$3500

$3000

$2500

$2000

$4033

3-YEAR HEATING SAVINGS

$2194

83% efficient O23 oil furnace vs.

55% and 65% equivalent AFUE units

*Applies to residential applications only.

See actual warranty certificate for details.

Innovation never felt so good.

™

THIS MODEL

81%-83%

INNOVATIVE FEATURES FOR ENHANCED COMFORT AND EFFICIENCY

Elite® Series O23 Specifications

O23 Up-flow Q2/3-70/90 Q3/4-105/120 Q5-140/154

AFUE 83% 81% 81%

Dimensions HxWxD (in.) 54 x 19-1/2 x 30-5/8 54 x 19-1/2 x 30-5/8 54 x 22-1/2 x 33-1/8

HxWxD (mm) 1372 x 495 x 778 1372 x 495 x 778 1372 x 572 x 841

OF23 Lo-Boy (Rear Flue) Q3/4-105/120R Q5-140/154R

OF23 Lo-Boy (Front Flue) Q3/4-105/120 Q5-140/154 OF23Q5-175/210R

AFUE 81% 81% 80%

Dimensions HxWxD (in.) 37 x 19-1/2 x 52-1/8 37 x 22-1/2 x 52-1/8 39 x 24 x 54-3/4

HxWxD (mm) 940 x 495 x 1324 940 x 572 x 1324 991 x 610 x 1391

OHR23 Down-flow/Horizontal Q3-105/120 Q5-140/154

AFUE 81% 81%

Dimensions HxWxD (in.) 59 x 20-1/2 x 20-1/2 59 x 23-1/2 x 23-1/2

HxWxD (mm) 1499 x 521 x 521 1499 x 597 x 597

Note: Due to Lennox’ ongoing commitment to quality, all specifications, ratings and dimensions are subject to change without notice.

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 AFII Burner –

Delivers super-efficient combustion for greater

fuel economy.

Heavy-Duty Fuel Pump –

Provides quiet, reliable operation with fast shutoff of oil flow.

Insulated Blower Compartment –

Minimizes operating sounds.

Durable, Insulated Steel Cabinet –

Built to last and coated with a high-quality paint finish.

O23

Up to

83% AFUE

Visit us at www.lennox.com, or contact us at 1-800-9-LENNOX. PC41274(37M95) O23 1/06

 Air conditioner or heat pump

 Thermostat

 Furnace or air handler

 Filtration device

 Germicidal light

 Indoor coil

 Humidifier

 HEPA bypass filtration system

 Energy recovery ventilator

 Supply duct

 Return duct

CUSTOMIZE YOUR COMFORT

Lennox® heating, cooling and 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.

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