Lenoxx Electronics LF24 User Manual
LF24 and TUA ◆ Up to 75,000 Btuh and Up to 81% Thermal Efficiency
LF24 and TUA
Garage Heaters
Easy, innovative solutions for making your
garage more usable and comfortable
Garage Heaters
30,000 to 75,000 Btuh for
™
almost any size garage or
utility area
Low-profile cabinet design
with a choice of configurations
Separated combustion heater
available* for hard-to-heat
applications where excessive
dust, dirt, humidity or
negative pressure is a concern
Shipped completely
assembled with controls
factory-installed and wired
Natural or propane gas**
WARRANTY***
10-year limited warranty
on heat exchanger.
5-year limited warranty
Innovation never felt so good.
on remaining covered
components.
EASY, INNOVATIVE SOLUTIONS FOR MAKING YOUR GARAGE
MORE USABLE AND COMFORTABLE
Comfort for Your Family
Getting in and out
of the car is more
comfortable when
you have a garage
heater. Plus, you
can avoid the carbon monoxide
buildup that comes from letting your
car idle to warm up.
Warmth for Your Pets
For pets kept
in the garage
on cold days,
a garage heater
provides a safer
and more reliable alternative to a
portable space heater.
Protection for Your Car
A warm garage
puts an end to
cold starts, which
can wreak havoc
on engine components. A garage heater helps improve
vehicle reliability by preventing cold/
hard starts at low temperatures.
Space for Your
Projects
A garage heater
helps keep winter
from getting in
the way of home projects. It also
allows you to store items that would
otherwise freeze, like bottled sodas
and potted plants.
* Contact your Lennox dealer for
information on the T-Class™ (TUA)
separated combustion heaters.
*
* Optional conversion kit available
for propane applications.
*** Applies to residential applications
only. See actual warranty
certificate for details.
© Lennox Industries Inc. 2007
Visit us at www.lennox.com, or
contact us at 1-800-9-LENNOX.
(30W46) Garage Heater 4/07 PC49401
ADVANCED FEATURES FOR EFFICIENCY AND DURABILITY
Low-profile Cabinet Design with Hanging
Brackets – Allows more overhead space for increased
installation flexibility.
Aluminized, Tubular Heat Exchanger – Provides
excellent heat transfer and enhanced durability.
Direct-spark Ignition – Improves unit operation and
efficiency. No standing pilot flame.
Self-diagnostic Board with LED Display –
Improves troubleshooting efficiency and accuracy.
Single-piece Burner Assembly – Easily removable
for fast maintenance and service.
Sidewall Venting – Eliminates roof penetrations.
Gas Heating Performance Physical Data
Model
LF24-30A 30,000 (8.8) 24,300 (7.1) 42 (23) 1 to 1-1/2 Car Garage 13 x 25 x 24 60
LF24-45A 45,000 (13.2) 36,500 (10.7) 45 (25) 2 to 2-1/2 Car Garage 13 x 25 x 24 63
LF24-60A 60,000 (17.6) 48,000 (14.1) 55 (31) 3 to 3-1/2 Car Garage 18 x 25 x 25 87
LF24-75A 75,000 (22.0) 60,000 (17.6) 60 (33) 4+ Car Garage 18 x 25 x 25 91
All models are 115 volts- 60 hertz-1 phase.
†
Sizing information is provided as an example only. Consult your local Lennox dealer for actual requirements.
Note: Due to Lennox’ ongoing commitment to quality, all specifications, ratings and dimensions are subject to change without notice.
Heating Capacity
Input Btuh (kW)
Heating
Output Btuh (kW)
Temp. Rise
°F (°C)
Application
†
Dimensions
H x W x L (in.)
Shipping Wt.
(lbs.)
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