View this manual online at www.lbwhite.com
Attention
This heater has been tested
and evaluated by C.S.A.
International in accordance
with ANSI/IAS U.S. LC2-1998
as well as the Canadian Gas
Association Standard for Gas
Fired Brooders, CAN1-2.20-
M85 and is listed and approved
as a direct gas-fired circulat-
ing heater for the heating of
agricultural animal confine-
ment buildings. If you are
considering using this product
for any application other than
its intended use, then please
contact your fuel gas supplier,
or the L.B. White Co., Inc.
www.lbwhite.com
SEE ASSEMBLY
INSTRUCTIONS
INSIDE
Please refer to important
elevation information on
inside cover.
WORLD PROVIDER - INNOVATIVE HEATING SOLUTIONS
411 Mason Street, Onalaska, WI 54650 • 800-345-7200 • 608-783-5691 • 608-783-6115 (fax) • www.lbwhite.com
Owner's Manual and Instructions
Guardian
Forced Air
Heater
Congratulations!
You have purchased the finest agricultural building heater
available. Your new L.B. White heater incorporates the benefits
from the most experienced manufacturer of heating products
using state-of-the-art technology.
We, at L.B. White, thank you for your confidence in our products
and welcome any suggestions or comments you may have...
contact us at 1-(800)-345-7200, or email us at
customerservice@lbwhite.com.
250,000 Btuh
AB250
LP Vapor Withdrawal or Natural Gas
SCAN THIS
with your smartphone or
visit http://goo.gl/nksqZ to view
maintenance videos for
L.B.White heaters.*
* Requires an app like QR Droid
for Android or for iPhone