Mr. Heater Little Buddy MH4BDF - Heating

Little Buddy MH4BDF - Heating Mr. Heater - Free user manual and instructions

Name: Little Buddy MH4BDF
Brand: Mr. Heater
Rating: 7.5 (230 reviews)

Find the device manual for free Little Buddy MH4BDF Mr. Heater in PDF.

📄 104 pages

EN 💬 AI Question ❓ 9 questions ⚙️ Specs

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Features	Details
Heating type	Portable gas heater
Heating power	3,800 BTU/h
Heated area	Up to 95 m²
Energy source	Propane gas
Dimensions	30.5 x 30.5 x 30.5 cm
Weight	3.2 kg
Indoor/outdoor use	Indoor use only
Safety system	Automatic shut-off if tipped over
Ignition	Piezoelectric ignition
Gas consumption	0.45 kg/h
Included accessories	Not specified
Maintenance	Regularly check gas connections and clean the burner
Warranty	1 year

Frequently Asked Questions - Little Buddy MH4BDF Mr. Heater

How do I light the Mr. Heater Little Buddy MH4BDF?

To light the Mr. Heater Little Buddy, turn the control knob to 'PILOT' and press the ignition button while holding a flame near the ignition port. Once the flame is stable, release the button.

What should I do if the heater does not light?

Check that the propane bottle is properly connected and contains gas. Also ensure the control knob is in the 'PILOT' position and the valve is not blocked.

Does the heater produce a gas smell?

If you smell gas, immediately turn off the heater, open windows, and leave the room. Do not relight the heater until the issue is resolved.

Can I use the Mr. Heater Little Buddy indoors?

The Mr. Heater Little Buddy is designed for indoor use, but it is essential to ensure adequate ventilation to avoid carbon monoxide buildup.

How long does a propane bottle last?

The runtime depends on the bottle size; a 4.5 kg bottle can power the heater for about 3 to 6 hours at full power.

How do I clean the Mr. Heater Little Buddy?

Unplug it and let it cool. Use a soft cloth to wipe the exterior. Avoid using harsh chemicals or water on internal components.

Does the heater shut off automatically?

Yes, the Mr. Heater Little Buddy is equipped with a safety device that automatically shuts off the unit if tipped over or if oxygen levels are too low.

What is the heating power of the Mr. Heater Little Buddy?

The Mr. Heater Little Buddy has a heating power of 1,500 watts, which effectively heats small spaces.

Can I use camping propane with this heater?

Yes, you can use compatible camping propane bottles with the Mr. Heater Little Buddy as long as they meet the required specifications.

Download the instructions for your Heating in PDF format for free! Find your manual Little Buddy MH4BDF - Mr. Heater and take your electronic device back in hand. On this page are published all the documents necessary for the use of your device. Little Buddy MH4BDF by Mr. Heater.

USER MANUAL Little Buddy MH4BDF Mr. Heater

If the information in this manual is not followed exactly, a fire or explosion may result causing property damage, personal injury or loss of life.

Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance.

A Propane (G31) or Butane/Propane mixture (G30+G31) cartridge not connected for use shall not be stored in the vicinity of this or any other appliance.

WHAT TO DO IF YOU SMELL GAS

Do not try to light appliance.

Extinguish any open flame.

Shut off gas to appliance.

Service must be performed by a qualified service agency. This is an unvented gas-fired portable heater. It uses air (oxygen) from the area in which it is used. Adequate combustion and ventilation air must be provided. Refer to page 3.

IMPORTANT: Read these instructions for use carefully so as to familiarize yourself with the appliance before connecting it to its gas cartridge. Keep these instructions for future reference. MH4BDF

OPERATING INSTRUCTIONS AND OWNERS MANUAL

www.mrheater.com 800-251-0001 Model # (450g) Butane /Propane Mixture Gas (G30+G31) Cartridge Not Included 1 Pound (450g) Propane Gas (G31) Cartridge Not Included

This appliance shall only be used with Coleman Propane 465g (G31) Gas and Primus Power Gas 70/30 Butane/ Propane (G30+G31). Read the instructions before using the appliance. It may be hazardous to attempt to fit other types of gas cartridges.

Early signs of carbon monoxide poisoning resemble the flu, with headache, dizziness and/or nausea. If you have these signs, heater may not be working properly. Get fresh air at once!

Any changes to this heater or its controls can be dangerous.

IF the recreational or commercial enclosure does not have a window or roof vent, DO NOT USE THIS HEATER INSIDE. Use only in a well ventilated area.

Every time a tank is connected to unit, connection must be checked for leaks in one or more ways: Apply soapy water to connection, look for bubbles, listen for hiss of escaping gas, feel for extreme cold, smell for rotten egg odor. Do not use if leaking! In the event of a gas leakage take the appliance outside immediately into a well venti- lated flame free location where the leak may be detected and stopped. Any changes to this heater or its controls can be dangerous

If there is a leak on your appliance (smell of gas), take it outside immediately into a well ventilated flame free location where the leak may be detected and stopped. If you wish to check for leaks on your appliance, do it outside. Do not try to detect leaks using a flame, use soapy waterOperating Instructions and OwnerÊs ManualMr. Heater MH4BDF

GENERAL INFORMATION:

This heater is safe for indoor use in small recreational enclosures, having means for providing combustion air and ventilation, such as tents, cabins, fishing huts, and enclosed porches. It may be used for emergency indoor heating when connected to a disposable 1 lb.(465g) propane (G31) OR 450g Butane/Propane mixture (G30+G31) cartridge and for indoor use in commercial enclosures, having means for providing combustion air and ventilation, such as construction trailers or temporary work enclosures. Note: The heater can be used outdoors, but may experience nuisance shutoffs due to certain wind conditions.

When the heater is cold or at room temperature, it will take a few minutes for the burner tile to turn bright orange. This is normal and the heater is working properly. If burner tile is visibly flaming, turn heater off and call a qualified service technician.

When the unit is lit, there should be about a quarter inch (1/4‰-.635 cm) border around the tile that will not turn bright orange. This is normal.

When operating the heater for the first time, the top area of the reflector may discolor. This is also normal and is no reason for concern.

When operating the heater at altitudes over 7,000 FT (2.13km). above sea level, the unit may not burn as bright as in lower altitudes. This is normal. At higher altitudes, the heater may shut-off. If this happens, pro- vide fresh air, wait 5 minutes and re-light. Due to local atmospheric conditions heater may not re-light.

Operating time will be approximately 5 hours on a one 1lb. propane (G31) cartridge or 5 hours on a 450G 70/30 Butane/ Propane mixture cartridge (G30+G31) . Due to the properties of propane gas, runtimes can be significantly reduced when operating continuously at temperatures below 20ÀF (-7° celcius).

This heater is equipped with a tip-over safety switch. Nuisance shut-downs may be experienced if the unit is bumped or moved. if this occurs simply relight the heater.

Due to natural operation of small tanks, condensation may build up on tank and drip on surface under heater. Sometimes this condensation may freeze due to the extreme cold caused when propane (G31) vaporizes. This is normal and no reason for alarm.

Do not use non-approved attachments on this heater and do not modify appliance.

Due to high temperatures, the appliance should be located out of traffic and away from combustible materials.

Children and adults should be alerted to the hazard of high surface temperatures and should stay away to avoid burns or clothing ignition.

Young children should be carefully supervised when they are near the appliance.

Do not place clothing or other flammable material on or near the appliance.

Do not operate heater in any moving vehicle such as leisure vehicles like caravans and acutocaravans. Do not use in high rise flats, basements, bathrooms or bed- rooms.

This heater requires a well ventilated location of 4 square inches (0.0025m) (example 2‰ x 2‰ opening/ 5.08 cm x 5.08 cm) minimum for adequate ventilation during operation which is in accordance with national require- ments for the supply of combustion air, . Do not use other fuel burning appliances inside.

Any safety screen or guard removed for servicing the ap- pliance must be replaced prior to operating the heater.

The appliance should be inspected before each use. Frequent cleaning may be required. The control compartments, burner and circulating air passageways of the appliance must be kept clean, see MAINTENANCE.

DO NOT use this heater if any part has been under water. Immediately call a qualified service technician to inspect the heater and to replace any part of the control system and any gas control, which has been under water.

When used without adequate combustion and ventilation air, this heater may give off excessive CARBON MONOXIDE, an odorless, poisonous gas.

Some people - pregnant women, persons with heart or lung disease, anemia, those under the influence of alcohol, those at high altitudes - are more affected by carbon monoxide than others.

When heater is placed on the ground, make sure the ground is level and keep any objects at least 24 inches(60.96 cm) from the front of the heater. DO NOT

THIS IS A HEATING APPLIANCE. DO NOT OPERATE THIS APPLIANCE WITHOUT THE FRONT WIRE GUARD INSTALLED. DO NOT ATTEMPT TO WARM OR COOK FOOD ON THIS HEATER.Mr. Heater MH4BDF Operating Instructions and OwnerÊs Manual

The guard on this appliance is to prevent risk of fire or injury from burns and no part of it should be permanently removed. IT DOES NOT GIVE FULL PROTECTION FOR YOUNG CHILDREN OR THE INFIRM.

Do not operate, store or remove cartridge near flammable items or ignition sources.

Do not operate, store or remove cartridge near flammable items or ignition sources.

GAS CARTRIDGES MUST BE DISCONNECTED FROM HEATER WHEN NOT IN USE!

Turn knob to „OFF‰ position wait til burner has shutoff and heater has cooled.

TO REMOVE PROPANE (G31) CARTRIDGE: Remove cartridge off of stand and turn cartridge counterclockwise until it is fully unscrewed off of heater.

TO REMOVE BUTANE/PROPANE MIXTURE (G30+G31) CARTRIDGE: Remove cartridge off of stand and turn cartridge counterclockwise until it is fully unscrewed off of adapter.

Once Cartridge is removed then the Butane adapter can be unscrewed turning counterclockwise until it is fully unscrewed off of the heater.

Change the gas cartridge outside and away from people.

propane mixture (G30+G31) cartridge and heater gas connections and seals for damage, dirt, and debris before attaching propane (G31) or Butane/propane mixture (G30+G31) cartridge. Do not use if head of cartridge is damaged, punctured or deteriorated.

NEVER SMOKE WHEN ATTACHING OR REMOVING

Use 16.4 oz. (1 lb./465g) disposable cartridges that mate with No. 600 valve connection or butane/propane (G31) (70/30) mixtures with thread type 7/16-28 ENEF-2B.

Check that seals (between the appliance and the gas container ) are in place and in good condition before connecting to the gas container. Do not use an appliance which has damaged or worn seals. Do not use an appliance which is leaking, damaged or which does not operate properly. See Figure 2

Heater and attached cartridge must be in an upright position during operation.

To use with propane (G31): Screw 1 lb. (465g) disposable propane gas supply cartridge clockwise (from bottom) into portable heater until hand-tight and fit cartridge into stand. Do not use thread sealant on this connection

To use with butane/propane mixture (G30+G31): Screw brass adapter clockwise into portable heater regulator (from bottom) until tight. See Figure 1. Do not use thread sealant on this connection. Screw Butane/ propane mixture (G30+G31) cartridge into the adapter (clockwise), once the shaft on the adapter starts to turn the cartridge is connected, then fit the cartridge into the stand. See Figure 2.

Check adapter and cartridge connections for leaks with soapy water at the threaded connection under the domed plastic cover where the cartridge screws into the regulator. SEE WARNING! ON PLASTIC COVER.

Depress „ON‰ button for 30 seconds to light pilot flame (repeat until pilot lights) and continue to hold for 30-60 seconds. See Figure 2 NOTE: Flare ups are common when first lighting the appliance. Keep your face and flammable objects away from the appliance.

After lighting pilot, release „ON‰ button to light heater.

To shut off heater, press the „OFF‰ button. Check that burners have extinguished before disconnecting the gas cartridges

CAUTION: Accessible parts may become very hot. Keep young children away from the appliance. After turning heater off, wire guard will remain hot. The guard on this appliance is to prevent risk of fire or injury from burns and no part of it should be permanently removed. Allow to thoroughly cool before storing. Gjhvsf!2 Gjhvsf!3 SealOperating Instructions and OwnerÊs ManualMr. Heater MH4BDF

tile of burner assembly and venturi tube (ref. 13) to remove dust, lint and spider webs.

8. Reinstall the right side plastic service panel.

Igniter wire may not be attached to spark electrode.-- attach

Igniter wire damaged – replace.

Piezo igniter defective – replace gas valve assembly. Jg!Tqbsl!fmfduspef!qspevdft!tqbsl!cvu!qjmpu!epft!opu!mjhiu/ ! DIFDL

No gas to heater – re-install or replace gas cartridge.

Pilot is blocked from spider web or dirt – clean pilot, see MAINTENANCE. Jg!Qjmpu!gmbnf!epft!opu!tubz!mju!xifo!cvuupo!jt!sfmfbtfe/ ! DIFDL

„Pilot/Ignition‰ button not held long enough to purge air from line.

Pilot flame not surrounding thermocouple – clean pilot, see MAINTENANCE.

Pilot Assembly defective – replace.

Tip switch wires disconnected – connect tip switch (check off switch and off switch wiring). Jg!Nbjo!cvsofs!epft!opu!jhojuf/ ! DIFDL

Main burner orifice is blocked – clean burner, see MAINTENANCE. Jg!Ifbufs!lffqt!tivuujoh!PGG!evsjoh!opsnbm!pqfsbujpo/ ! DIFDL

Pilot is blocked – clean pilot, see MAINTENANCE.

Provide minimum fresh air opening of 4 (10.16cm) square inches (example 2‰ x 2‰ opening/ 5.08 cm x 5.08 cm).

Tip over switch activated from bumping heater. Re-light MAINTENANCE: PRECAUTIONS TO BE TAKEN WHEN THE APPLIANCE IS NOT TO BE USED FOR A PERIOD OF TIME: Store heater when it has cooled in a zippered bag or other sealed dust free location between uses. Always keep the heater area clear and free from combustible materials, gasoline and other flammable vapors and liquids. Keep the vent areas (slots in the bottom and top of the heater) clear at all times. Visually inspect the pilot flame and burner periodically during use. The pilot flame should be blue in color (not yellow) and will extend to the thermocouple. The flame will surround the thermocouple just below the tip, see Figure 3. A slight yellow flame may occur where the pilot flame and main burner flame meet. The burner should be bright orange (with a slight blue color around the border, a red-orange haze that is visible on the ceramic tile is acceptable) and without a noticeable flame. A blue flame that rolls out at the top of the ceramic tile indicates an accumulation of dust, lint or spider webs inside the housing assembly and main burner assembly. If the pilot is yellow or the burner has a noticeable flame, cleaning may be required. Use the following procedure to inspect the casing assembly and main burner assembly. It is necessary to periodically check the burner orifice and burner venturi to make sure that they are clear of things such as insect nests and spider webs that may accumulate over time. A clogged tube can lead to a fire. CLEANING INSTRUCTIONS:

1. Allow heater to thoroughly cool before performing any

3. Remove right side plastic service panel (ref.5) by

removing the six screws holding it in place.

4. Inspect the interior of casing for accumulation of dust,

lint or spider webs. If necessary, clean the interior of the casing assembly with a vacuum cleaner or compressed air (max 30 psi). Do not damage any components within the casing assembly when you are cleaning.

5. Inspect and clean main burner (ref. 13) and orifice (ref.

3) by using a vacuum or compressed air (max 30 psi).

6. Inspect and clean pilot tube (ref. 14). Insert a doubled

over pipe cleaner into the pilot tube until it bottoms against the pilot orifice (approximately 2‰/5.08 cm). Rotate the pipe cleaner a couple of times and remove. Blow out the remaining debris using compressed air.

WARNING: Never use needles, wires or similar cylindrical

objects to clean the pilot to avoid damaging the calibrated ruby that controls the gas flow through the pilot orifice.