3
Operating Instructions and Owner’s Manual
Mr. Heater | Unvented Natural Gas Fired Room Heater
Specifications
MODEL
MHVFRD10NGT / MHVFBF10NGT
BTU (Available)
10,000
Type of Gas
Natural Gas Only
Ignition
Battery Igniter (1-AAA)
Manifold Pressure
4.5 Inches of Water
Inlet Gas Pressure (Maximum)
14 Inches of Water
Inlet Gas Pressure (Minimum)
7 Inches of Water
Thermostatic Control
Yes
Clearances: Inches (mm)
Top
36” (91.4 cm)
Sides
10” (25.4 cm)
Floor (min. to top of carpet)
3” (7.6 cm)
Fabric / flammable objects
36” (91.4 cm)
CONTENTS
2
Warnings
3
Specifications
3
Precautions
4
Installation
9
Operation
Lighting
Shutdown
11
Maintenance
12
Troubleshooting
16
Parts List
20
Ordering Parts/Warranty
NEVER LEAVE THE HEATER UNATTENDED WHILE BURNING!
NEVER LEAVE THE HEATER UNATTENDED WHILE BURNING!
NEVER LEAVE THE HEATER UNATTENDED WHILE BURNING!
PRECA
UTIONS
PRECAUTIONS:
1. Either of the 10,000 BTU (2931 W)
units (the MHVFRD10NGT or the
MHVFBF10NGT) may be installed in
a bedroom, but shall not be installed
in a bathroom or any place where a
strong wind would shut down the
appliance.
2. This heater needs outside ventilation
air to run properly. The Oxygen
Depletion Sensor (ODS) safety shutoff
system shuts down the heater if not
enough fresh air is available. See Fresh
Air for Combustion and Ventilation,
page 4.
3. Keep all air openings in heater clear,
free of debris or any blockage. This
will ensure that enough air for proper
combustion enters the heater.
4. If heater shuts off, do not relight
until you provide fresh, outside air. If
heater keeps shutting off, it requires
servicing.
5. Turn off and let cool before servicing.
Only a qualified service person should
service and repair heater.
6. Do not run heater:
• Where flammable liquids or vapors are
used or stored
• During dusty conditions.
7. Before using furniture polish, wax,
carpet cleaner or similar products, turn
heater off. If heated the vapors from
these products may create a white
powder residue within burner box or
on adjacent walls or furniture.
8. Do not use heater if any part has
been underwater. Immediately call a
qualified service technician to inspect
the room heater and to replace any
part of the control system and any gas
control which has been underwater.
9. Operating heater above elevations
of 4,500 feet could cause pilot/ODS
to shutdown heater.
Carbon Monoxide Poisoning:
Early signs of carbon monoxide poisoning
resemble the flu, with headaches,
dizziness, or nausea. If you have these
signs, the heater may not be working
properly. Get fresh air at once! Have
heater serviced. Some people are more
affected by carbon monoxide than others.
These include pregnant women, persons
with heart or lung disease or anemia,
those under the influence of alcohol, and
those at high altitudes.
Natural Gas:
Natural gas is odorless. An odor making
agent is added to natural gas. The odor
helps you detect a natural gas leak.
However, the odor added to the gas can
fade. Gas may be present even though
no odor exists. Make certain you read
and understand all warnings. Keep this
manual for reference.
It is your guide to safe and proper
operation of this heater.
Safety Device
This heater has a pilot with an Oxygen
Depletion Sensor (ODS) safety shut off
system. The ODS/pilot shuts off the
heater if there is not enough fresh air.
Ignition System/Battery
Installation
PIEZO:
The heater is equipped with an
electronic manual ignitor. This system
requires no matches, batteries, or other
source to light heater but does require
one AAA battery to operate ignitor.
To install or replace battery unscrew the
ignitor cap (red button), insert battery
positive (+) terminal up and replace cap.
(AAA Battery included).
Thermostatic Control
These heaters have a control valve with
a thermostat sensing bulb. This results
in the greatest heater comfort and may
result in lower fuel bills.
**Operating heater above elevations of 4,500 feet could cause pilot/ODS to shutdown heat
er.**
SOCIAL MEDIA
In order to provide the best service possible Mr. Heater is now giving you more
ways to get in touch with us:
WEBSITE: Mr. Heater’s full line of product are now at:
www.mrheater.com
FACEBOOK: Find us on Facebook
TWITTER: Find us on twitter
YouTube: There are now informational videos on Youtube.
DANGER: C
arbon monoxide
poisoning may lead to death.
