Mr. Heater MHVFBF20 LPBT Operating Instructions And Owner'S Manual Download Page 7

Installation Instructions and Owner’s Manual

Unvented LP-Gas Vent Free Room Heaters

7

Figure 4

FASTENING HEATER TO WALL

Mounting Bracket

The mounting bracket in located on the back panel of 
heater (see fi gure 5). It has been taped there for ship-
ping. Remove mounting bracket from back panel.

Figure 5

Removing Front Panel of Heater 

1.  Remove (4) screws total there are (2) screws 

on either side of the heater (Figure 6).

2.  Pull the front panel and back panel apart.

(2) Screws

(2) Screws

Figure 6

Attaching Mounting Bracket to Wall

Use holes on each end of mounting bracket to attach 
bracket to wall. These holes are 16 inches apart. Attach 
mounting bracket to wall in one of two following ways.

1.  Attach to wall studs

2.  Attach to wall anchor

Attaching to Wall Stud:

This way is the best providing the strongest mounting in 
wood frame houses. 

Attaching to Wall Anchor: 

This way allows you to attach mounting bracket to hol-
low walls (wall areas between studs) or to solid walls 
(concrete or masonry).

Decide which way best suits your needs. Either method 
will provide a secure hold for the mounting bracket.

1.  Tape mounting bracket to wall where heater 

will be located. Make sure mounting bracket is 
level. For wall stud mounting locate one end of 
the mounting bracket over a wall stud.

WARNING:

 Maintain minimum clearances shown in 

fi gure 7. If you can, provide greater clearances from 
the fl oor and joining wall. 

2.  Mark screw locations on wall (see fi gure 7).

3.  Remove tape and mount bracket from wall.

Figure 7

Attaching to Wall Stud:

For attaching mounting bracket to wall studs

1.  Drill holes at marked locations using 9/64” drill 

bit.

2.  Place mounting bracket onto wall. Line up 

holes on each end of bracket with hole drilled in 
wall.

3.  Insert mounting screws through bracket and 

into wall studs.

4.  Tighten screws until mounting bracket is fi rmly 

fastened to wall studs.

Attaching to Wall using Anchor:

For attaching mounting bracket to hollow walls (wall areas 
between studs) or solid walls (concrete or masonry)

Note:

 Wall anchors, mounting screws, and spacer 

are in hardware package. The hardware package is 
provided with heater. 

1.  Drill holes at marked locations using 5/16” drill 

bit. For solid walls (concrete or masonry), drill 
at least 1” deep.

Adjoining W

all

18” Min.

SEE CLEARANCE 
SPECIFICATIONS ON PG. 3

16” (Lg)
12-9/64” (Sm)

Mark mounting hole locations 
and drill holes where indicated. 
Allow for minimum clearances

Left 
Side

Right 
Side

36” (915cm)
min. from ceiling

10”(254cm)
from sides

3” min. to top surface of carpet, tile 
or other combustible material

Floor

Mounting 
Bracket

Summary of Contents for MHVFBF20 LPBT

Page 1: ...tallation adjustment alteration service or maintenance can cause injury or property damage Refer to this manual for correct installation and operational procedures For assistance or additional informa...

Page 2: ...IAL MEDIA WARNINGS IMPORTANT Read this owner s manual carefully and completely before trying to assemble operate or service this heater Improper use of this heater can cause serious injury or death fr...

Page 3: ...hr 2 931W shall not be installed in a bedroom or bathroom 3 Keep all air openings in heater clear free of debris or any blockage This will insure that enough air for proper combustion enters the heate...

Page 4: ...The following are excerpts from National Fuel Gas Code NFPA 54 ANSI Z223 1 Section 5 3 Air for Combustion and Ventilation All spaces in homes fall into one of the three following ventilation classific...

Page 5: ...Vent Free Heater 20 000 Btu hr Total 60 000 Btu hr 4 Compare the maximum Btu hr the space can support with the actual amount of Btu hr used Example 51 800 Btu hr maximum Btu hr the space can support...

Page 6: ...arances from the floor ceiling and joining walls WARNING Rework worksheet adding the space of the adjoining unconfined space The combined space must have enough fresh air to supply all ap pliance in b...

Page 7: ...bracket is level For wall stud mounting locate one end of the mounting bracket over a wall stud WARNING Maintain minimum clearances shown in figure 7 If you can provide greater clearances from the fl...

Page 8: ...tom mounting holes and wall anchor or drilled hole 7 Hold spacer in place with one hand With the other hand insert mounting screw through bottom mounting hole and spacer Place tip of screw in opening...

Page 9: ...g into heater If sediment trap is not installed or is installed improperly heater may not run correctly Pressure Regulator Heater Cabinet Ground Joint Union Equipment Shutoff Valve From regulated LP t...

Page 10: ...ny phone in your building Immediately call your gas supplier from a neighbor s phone Follow the gas supplier s instructions If you can not reach your gas supplier call the fire department C Use only y...

Page 11: ...a qualified service person of gas supplier for repairs If control knob does not pop up when released contact a qualified service person or gas sup plier for repairs 8 When the pilot is lit turn contr...

Page 12: ...e and pilot assembly clean and free of dust and dirt To clean these parts we recommend using compressed air no greater than 30 psig This can be done by using a vacuum cleaner in the blow position usin...

Page 13: ...gulator 6 Turn Control knob to pilot position When ignitor button is pressed in there is a spark at the ODS pilot but no ignition 1 Control knob not fully pressed in 2 Control knob not pressed in long...

Page 14: ...ee Figure 4 page 7 4 Clean burner orifice see Cleaning and Maintenance on pages 11 and 12 or replace burner orifice White powder residue forming within burner box or on adjacent walls or furni ture 1...

Page 15: ...Installation Instructions and Owner s Manual Unvented LP Gas Vent Free Room Heaters 15...

Page 16: ...w Thermocouple 1 23 801 10 Fan Assembly 1 9 80009 Orifice 1 24 80049 Fan Switch 1 10 80073 Orifice Adapter 1 25 8001 1 Ignitor Module Mounting Bracket 1 11 80056 Regulator Mounting Bracket 1 26 80019...

Page 17: ...ple 1 23 801 10 Fan Assembly 1 9 80009 Orifice 1 24 80049 Fan Switch 1 10 80073 Orifice Adapter 1 25 8001 1 Ignitor Module Mounting Bracket 1 11 80055 Regulator Mounting Bracket 1 26 80019 Ignitor Pul...

Page 18: ...1 7 80079 Gas Input Elbow Adapter 1 20 801 10 Fan Assembly 1 8 80107 Regulator 1 21 8001 1 Ignitor Module Mounting Bracket 1 9 80021 Regulator Connection 1 22 80019 Ignitor Pulse 1 10 80055 Regulator...

Page 19: ...1 7 80079 Gas Input Elbow Adapter 1 30 801 10 Fan Assembly 1 8 80083 Regulator 1 31 8001 1 Ignitor Module Mounting Bracket 1 9 80021 Regulator Connection 1 32 80019 Ignitor Pulse 1 10 80055 Regulator...

Page 20: ...DERING 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 mrheater co...

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