READ INSTRUCTIONS CAREFULLY: YOUR SAFETY IS IMPORTANT TO YOU AND TO OTHERS.
Read and follow all instructions. Place instructions in a safe place for future reference. Do not allow anyone
who has not read these instructions to assemble, light, adjust or operate the heater.
ENERCO GROUP, INC., 4560 W. 160TH ST., CLEVELAND,
OHIO 44135 • 800-251-0001
Mr. Heater is a registered trademarks of Mr. Heater, Inc.
© 2022, Mr. Heater. All rights reserved
OPERATING INSTRUCTIONS
AND OWNER'S MANUAL
WARNING:
USE ONLY MANUFACTURER'S REPLACEMENT PARTS. USE OF ANY OTHER PARTS COULD
CAUSE INJURY OR DEATH. REPLACEMENT PARTS ARE ONLY AVAILABLE DIRECT FROM THE
FACTORY AND MUST BE INSTALLED BY A QUALIFIED SERVICE AGENCY.
PARTS ORDERING INFORMATION:
PURCHASING:
ACCESSORIES MAY BE PURCHASED AT ANY MR. HEATER LOCAL DEALER OR
DIRECT FROM THE FACTORY
FOR INFORMATION REGARDING SERVICE:
Please call Toll-Free 800-251-0001 • WWW.MR. HEATER.COM
Our office hours are 8:00 AM – 5:00 PM, EST, Monday through Friday.
Please include the model number, date of purchase, and description of problem in all communi-
cation.
LIMITED WARRANTY:
The company warrants this product to be free from imperfections in material or workmanship,
under normal and proper use in accordance with instructions of The Company, for a period of
three years on parts (Limited to 1 year in high humidity or caustic environments), and 10 years
on the heat exchanger (Limited to 3 years when installed in corrosive environments), from the
date of delivery to the buyer. The Company, at its option, will repair or replace products returned
by the buyer to the factory, transportation prepaid within said one year period and found by the
Company to have imperfections in material or workmanship.
If a part is damaged or missing, call our Technical Support Department at 800-251-0001.
Address any Warranty Claims to the Service Department, Mr. Heater, Inc., 4560 W. 160TH ST.,
CLEVELAND, OHIO 44135. Include your name, address and telephone number and include de-
tails concerning the claim. Also, supply us with the purchase date and the name and address of
the dealer from whom you purchased our product.
The foregoing is the full extent of the responsibility of the Company. There are no other war-
ranties, express or implied. Specifically there is no warranty of fitness for a particular purpose
and there is no warranty of merchantability. In no event shall the Company be liable for delay
caused by imperfections, for consequential damages, or for any charges of the expense of any
nature incurred without its written consent. The cost of repair or replacement shall be the ex-
clusive remedy for any breach of warranty. There is no warranty against infringement of the like
and no implied warranty arising from course of dealing or usage of trade. This warranty will not
apply to any product which has been repaired or altered outside of the factory in any respect
which in our judgment affects its condition or operation.
Some states do not allow the exclusion or limitation of incidental or consequential damages, so
the above limitation or exclusion may not apply to you. This Warranty gives you specific legal
rights, and you may have other rights which vary from state to state.
Mr. Heater, Inc. reserves the right to make changes at any time, without notice or obligation, in
colors, specifications, accessories, materials and models.
PRODUCT REGISTRATION: Thank you for your purchase.
Please log in to http://www.egiregistration.com to register your product.
Large Unit Heater
28
Operating Instructions and Owner's Manual
MODEL#
MHU200NG
MHU300NG
MHU250NG
MHU400NG