Mr. Heater MHVFB10LP User Manual download pdf (Page 3)

Installation Instructions and Owner’s Manual

Unvented LP-Gas Fired Buddy Wall-Mount Heater

exists. Make certain you read and understand all warn-

ings. Keep this manual for reference. It is your guide to

safe and proper operation of this heater.

Product Features

Figure 1

SAFETY DEVICE

This heater has a pilot with an Oxygen Depletion Sen-

sor (ODS) safety shut off system. The ODS/pilot shuts

off the heater if there is not enough fresh air.

IGNITION SYSTEM

PIEZO: MHVFB10LP – The heater is equipped with a

piezo manual ignitor. This system requires no matches,

batteries, or other source to light heater.

LOCAL CODES

Install and use heater with care.

Installation must conform to local codes or in the ab-

sences of local codes, use the latest edition of National

Fuel Gas Code ANSI Z223.1/NFPA 54.

UNPACKING

1. Remove heater from carton.

2. Remove all protective packaging applied to

heater for shipment.

3. Check heater for any shipping damage. If

heater is damaged, promptly inform dealer

where you bought heater.

WARNING: Even though this heater may be

used in enclosures such as ice houses, lodges,

cabins or enclosed porches, fresh air for com-

bustion and ventilations requirements apply the

same as below.

FRESH AIR FOR COMBUSTION AND

VENTILATION

WARNING: This heater shall not be installed in a

conned space or unusually tight construction un-

less provisions are provided for adequate combus-

tion and ventilation air. Read the following instruc-

tions to insure proper fresh air for this and other

fuel-burning appliances in your home.

ESTABLISHING ADEQUATE VENTILATION

The following are excerpts from National Fuel Gas

Code, NFPA 54/ ANSI Z223.1, Section 5.3, Air for Com-

bustion and Ventilation. All spaces in homes fall into

one of the three following ventilation classications:

1. Unusually Tight Construction

2. Unconned Space

3. Conned Space

This heater must not be installed in a conned space or

unusually tight construction unless provisions are pro-

vided for adequate combustion and ventilation air. The

information on pages 3 through 5 will help you classify

your space and provide adequate ventilation.

Unusually Tight Construction

If your home meets all of the three following criteria you

must provide additional fresh air. See Ventilation Air

from Outdoors, page 5.

Unusually tight construction is dened as construction

where:

a. Walls and ceilings exposed to the outside atmo-

sphere have a continuous water vapor retarder with

a rating of one perm (6 x 10

-11

kg per pa-sec-m

) or

less with openings gasketed or sealed and

b. Weather stripping has been added on openable win-

dows and doors, and

c. Caulking or sealants are applied to areas such as

joints around windows and door frames, between

wall-ceiling joints, between wall panels, at penetra-

tions for plumbing, electrical, and gas lines, and at

other openings.

If you home does not meet all of the three criteria

above, see Determine the Type of Heater Location

Space, page 4.

Conned Space and Unconned Space

The National Fuel Gas Code, NFPA 54/ ANSI Z223.1

denes a conned space as a space whose volume is

less than 50 cubic feet per 1,000 Btu per hour (4.8 m

per kW) of the aggregate input rating of all appliances

installed in that space, and an unconned space as a

space whose volume is not less than 50 cubic feet per

1,000 Btu per hour (4.8 m

per kW) of the aggregate

input rating of all appliances installed in that space.

Rooms communicating directly with the space in which

the appliances are installed*, through openings not fur-

nished with doors, are considered a part of the uncon-

ned space.

*Adjoining rooms are communication only if there

are doorless passageways or ventilation grills be-

tween them.

DETERMINING THE TYPE OF HEATER

LOCATION SPACE:

Use this method to determine if you have a conned or

unconned space.

Note: the space includes the room in which you

Control Knob

Grill

Front Panel

Burner

Heater

Cabinet

1 2 3 4 5 6 7 8 ... 15 16

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