VORNADO VMH300 Whole Room Metal Heater Owner’s Manual

model VMH300WHOLE ROOM HEATEROWNER’S GUIDEREAD AND SAVETHESE INSTRUCTIONSvornado.comwe expect this product to be PERFECT if it’s not,WE will make it rightvornado.com800.234.0604[email protected]



This owner’s guide and any additional inserts are considered part of the product. They contain important information about safety, use, and disposal. Before using the product, please familiarize yourself with all operating and safety instructions. Please keep all documents for future reference and pass these documents on, together with the product, to any future owner. See www.vornado.com to view, download and print the most current version of this owner’s guide.INTENDED USE: This product is intended to heat and circulate the air in indoor living spaces only. This product is intended for floor use only.This product is not intended for commercial or industrial use. This heater is not intended for use in bathrooms, laundry areas, and similar damp locations. The manufacturer assumes no responsibility for damage or injury due to unauthorized use or product modification.Failure to follow these directions will void the product warranty.When using electrical appliances, basic precautions should always be followed to reduce the risk of fire, electric shock, and injury to persons, including the following:WARNING: Risk to Children and Impaired Persons– Extreme caution is required during the installation, operation, cleaning, and maintenance of this product by or around children 12 years of age and younger and anyone with reduced physical, sensory or mental capabilities, and whenever the heater is left operating and unattended. Children should be supervised to ensure that they do not play with the appliance, its parts, and packaging material.

INSTALLATION WARNING—To reduce the risk of fire, electrical shock, and injury to persons, observe the following:– A heater has hot and arcing or sparking parts inside. Do not use it in areas where gasoline, paint, or flammable liquids are used or stored.– Do not use this heater in an RV, boat, or during any application where battery power is converted to AC power.– Place this product at least 3 feet away on all sides from, electrical outlets, furniture, pillows, bedding, papers, clothes, curtains, and other objects that may cause or catch on fire. Do not place the heater near a bed because objects such as pillows or blankets can fall off the bed and be ignited by the heater.– To prevent a possible fire, do not place the heater on soft surfaces, like a bed, where air intakes or exhaust can be blocked in any manner.– No part of this product (the appliance, power cord, plug, packaging, etc.) should be placed near furnaces, fireplaces, stoves, or other high-temperature heat sources. Do not use it in a window, on an uneven or unstable surface, or near water.– Do not use this product on an elevated surface such as a shelf or desktop. Use only while placed on the floor. Operate only in the upright position.– The appliance, power supply, power cord, and plug cannot come into contact with water. Do not use this product on wet surfaces.Do not use this product in a bathtub or shower or position product where it may fall into a bathtub, laundry, swimming pool, or another water container. Do not use this product outdoors or expose it to weather or elements.– Do not run cord under carpeting. Do not cover the cord with throw rugs, runners, or similar coverings. Do not route under furniture or appliances. Arrange cord away from traffic area and where it will not be tripped over. The cord should not hang over the edges of counters or be placed where it can be crimped or closed indoors. Place appliance near an easily accessible outlet so the product can be unplugged quickly during an emergency.– Do not modify the product with any aftermarket accessory.SAFE USE WARNING—To reduce the risk of fire, electrical shock, and injury to persons, observe the following:– Use this heater only as described in this manual. Any other use not recommended by the manufacturer may cause fire, electric shock, or injury to persons.– Extreme caution is required at all times a heater is in operation.Always unplug the heater when not in use. Vornado does not recommend unattended and unsupervised use of this heater.– This heater is hot when in use. To avoid burns, do not let bare skin touch hot surfaces. If provided, use handles when moving this heater.– Always plug heaters directly into a wall outlet/receptacle. Never use an extension cord or relocatable power tap (outlet/power strip).Do not use this heater on a surge-protected unit or Ground Fault Circuit Interrupted (GFCI) outlet.– This product’s power cord is equipped with a three-prong, grounded plug that must be inserted into a grounded receptacle.Connect to properly grounded outlets only.– Before plugging the power cord into an electrical outlet, be sure that all electrical information on the rating label, including voltage, is compatible with your outlet’s power supply.– WARNING: To reduce the likelihood of circuit overload, fire, and electric shock, do not operate with a solid-state speed device, such as a dimmer control switch. Use of this appliance on the same electrical circuit as another high energy use product, such as a vacuum cleaner, blender, variable speed fan or circular saw is not advised.Do not use this heater with a timer designed to automatically turn the unit on or off, as this may accidentally disable the heater’s thermal cutout safety feature.– Risk of fire. Do not operate any heater with a damaged cord or plug or after the heater malfunctions, has been dropped or damaged in any manner. Discard heater, or return to an authorized service facility for examination and/or repair.– Never use the cord as a handle or otherwise yank, strain or stretch the power cord.– While the product is plugged in, do not insert or allow foreign objects to enter any ventilation or exhaust opening as this may cause an electric shock or fire, or damage the heater.– Check your heater cord and plug connections. A loose-fitting outlet can cause the plug to overheat or cause a fire. Be sure the plug fits tightly in the outlet. Check frequently during use to make sure the plug and outlet are not hot. If so, discontinue using the heater and have the outlet replaced by a qualified electrician.– Never ignore the signs of an electrical problem, such as warm outlet cover plates, sparks when plugging in or operating, lights flickering/dimming during operation. Immediately turn off and unplug the appliance if any such problems are noticed. Contact a qualified electrician to investigate possible causes before operating the appliance again.– Note: Heaters draw more current than small appliances, overheating of the outlet may occur even if it has not occurred with the other appliances.– This heater is for use with 120-volt electrical outlets. The cord has a plug as shown at A in Figure 68.1, below. An adapter as shown at C is available for connecting three-blade grounding-type plugs to two-slot receptacles. The green grounding lug extending from the adapter must be connected to a permanent ground such as a properly grounded outlet box. The adapter should not be used if a three-slot grounded receptacle is available.

Figure 68.1

– Before moving, repositioning, servicing, cleaning, and when not in use, use the product controls to turn off the power and then unplug.To disconnect from the outlet, grasp and pull only the plug. Also, power off and unplug if the product will be left unattended for an extended period of time or during electrical storms.– If your heater suddenly stops working:

  • This heater is equipped with a thermal cutout safety feature designed to automatically shut off when overheating is detected.See the “RESET HEATER” instructions in this guide to determine how to check and reset the heater.
  • If the heater and other electrical products suddenly stop working at the same time, your home circuit breaker or fuse may have tripped due to an overload of power. Consider only running your heater on the “low” setting, only running one heater at once and unplugging all other electrical products while running the heater, and/or hiring an electrician to install an additional circuit to your home’s electrical system.

SERVICING WARNING—To reduce the risk of fire, electrical shock, and injury to persons, observe the following:– Clean your product regularly, only as is instructed in this manual.Prior to cleaning, turn off the power on your product and unplug. Do not use gasoline, thinners, solvents, ammonia, or other chemicals for cleaning. Refer to the CLEANING instructions provided.– Do not open appliance housing while the product is plugged in. To avoid the risk of shock, all service and/or repairs must be done by a Vornado Authorized Service Center.





Before use, check the appliance for visible damage. DO NOT USE THIS HEATER if there is evidence of damage. If any damage is found, contactVornado Air LLC at 1-800-234-0604.

  1. Use an integrated handle on top of the heater for lifting and carrying.
  2. Position heater so airflow is not obstructed.
  3. Unwrap the power cord from the storage tray on the back of the heater.Plug power cord into a standard grounded wall outlet.
  4. Select Mode by turning the control dial. Next, set the thermostat to the highest setting by turning clockwise. When the room reaches desired comfort level, turn the thermostat slowly counterclockwise until heat cycles off.


Because your heater moves a substantial amount of air, it will need regular cleaning. Cleaning the outside of the heater is recommendedon a weekly basis. If service is required, return your heater to Vornado. See WARRANTY for instructions.

  1. Unplug the heater before cleaning.
  2. Use the brush attachment on the household vacuum cleaner to vacuum any accumulated dust off Front Outlet Grill.
  3. Use the brush attachment on the household vacuum cleaner to vacuum any accumulated dust off Inlet Filter on the back of the heater.
  4. Wipe down the entire heater with a soft, dry cloth.

You should periodically blow out the heater with pressurized air to keep the heat element and motor clear of dust, hair, and debris that can build up inside the heater as it moves air during use. This also eliminates unwanted odors caused by the accumulation of these particles inside the unit.Note: Inlet Filter on back of heater is not removable.Note: Do not modify the product with any aftermarket accessory.


During the off-season or after extended periods of non-use, you may choose to store your heater. To ensure the long life of the product, it is recommended to store your heater by following these instructions:Cleaning is recommended before storage.

  1. Unplug the power cord, wrap the cord, and slide it inside the storage tray on the back of the heater.
  2. Cover, or place back in retail carton if available. This prevents the heater from accumulating dust over time.
  3. Store heater in a cool and dry location.

DISPOSALDispose of all packaging materials in an environmentally responsible manner.


RESETTING YOUR VORNADO HEATERYour Vornado Heater has a multilevel safety shut-off system designed to prevent overheating. Overheating may occur when the inlets or outlets are blocked. If this happens, the safety shut-off system cuts power to the heater and you must manually reset the heater.

  1. Power the heater off, then unplug the power cord.
  2. Remove any obstructions.
  3. Wait 5–10 minutes, allowing the heater to cool down.
  4. Plugin the power cord and place the heater in the desired position.
  5.  Power heater On. Your Vornado Heater should now function normally.

Note: If the safety shut-off system repeatedly shuts off your heater or if it will not reset after following the above procedure, call Vornado ConsumerServices Department toll-free at 1-800-234-0604.




Unit fails to power on. The unit is not plugged in. Plug the power cord into an electrical outlet.The household circuit breaker has tripped or blown fuse. Reset the circuit breaker or replace the fuse. SeeIMPORTANT INSTRUCTIONS.Ground fault circuit interrupter (GFCI) has tripped. Ground fault circuit interrupters are not recommended for use and may cause nuisance tripping. If tripping does occur, relocate the unit to a standard wall outlet.The unit has overheated. Automatic Safety Shut Off has been initiated. See RESET HEATER.The internal tip-over switch has been tripped and the safety shut-off system has cut power to the heater. Place heater on a level surface. See SAFETY FEATURES.The unit is damaged or in need of repair. Cease usage and unplug. Contact Consumer Service for assistance.
Airflow is diminished. Check filter and clean as necessary. See CLEANING.
The unit is not producinga sufficient amount of heat.

Ensure the unit is set to High Heat and the thermostat is set to the highest temperature setting.Close all doors and windows to trap heat.Allow unit to fully circulate heat throughout room; may take several minutes.


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We expect this product to be perfect. If you’re not satisfied with this product, let us know.

Vornado Air LLC (“Vornado”) warrants to the original consumer or purchaser this Vornado® Whole Room Heater (“Product”) is free from defects in material or workmanship for a period of five (5) years from the date of purchase. If any such defect is discovered within the warranty period, Vornado, at its discretion, will repair or replace the Product at no cost.For warranty or repair service:Call 1-800-234-0604 or email [email protected] to obtain a Return Authorization (“RA”) form. Please have or include your Product’s model number and serial number, as well as your name, address, city, state, Zip code, and phone number when contacting Vornado for warranty service.After receiving the RA form, ship your Product to:Vornado Air LLC Attn: Warranty & Repair 415 East 13th Street, Andover, KS 67002. For your convenience, please have your model number and serial number when contacting Vornado with service inquiries. To ensure proper handling, packages must be clearly marked with the RA number. Packages not clearly marked with the RA number may be refused at the receiving dock. Please allow 1–2 weeks for repair and return of your Product after theThe product is received.Repairs not covered by the warranty or outside the warranty period will require a fee to cover the cost of materials, labor, handling, and shipping.This warranty does not apply to defects resulting from abuse of the Product, modification, alteration, mishandling, improper maintenance, commercial use or repair or service of theProduct by anyone other than Vornado; damages that occur in shipment or are attributed to acts of God. Improper product use, which includes using an external device that alters or converts the voltage or frequency of electricity, or shipping a Vornado product to a country not intended for use will void all warranties. Any unauthorized product modification, repair by an unauthorized repair center, or use of non-approved replacement parts is not recommended and any consequences will not be covered by support services or product warranties. The product warranty will be honored only on models that are being used in the country intended. REPAIR OR REPLACEMENT AS PROVIDED UNDER THIS WARRANTY IS THE EXCLUSIVE REMEDY OF THE CONSUMER. VORNADO SHALL NOT BE LIABLE FOR ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES FOR BREACH OF ANY EXPRESS OR IMPLIED WARRANTY ON THIS PRODUCT. EXCEPT TO THE EXTENT PROHIBITED BY APPLICABLE LAW, ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE ON THIS PRODUCT IS LIMITED IN DURATION TO THE DURATION OF THIS WARRANTY. Some states do not allow theexclusion or limitation of incidental or consequential damages, or allow limitations on how long an implied warranty lasts, so the above limitations or exclusions may not apply to you.This warranty gives you specific legal rights, and you may have other rights that vary from state to state. The manufacturer assumes no responsibility for damage or injury caused by failure to follow these instructions, improper product use, or unauthorized product modifications. Any such actions will invalidate the product warranty.All company names and product names are trademarks of their respective owners.© All rights reserved. All technical information, data, and instructions for the installation, connection, and operation contained in these instructions for use correspond to the latest available information at the time of printing. The contents of this manual may differ slightly from the actual product. Observe any additional supplements.

Vornado Air, LLC415 East 13th Street, Andover, Kansas 67002800.234.0604 | vornado.comWe’re Here to Help800.234.0604vornado.com[email protected]Designed, engineered, and supported in the USA.© 2020 Vornado Air LLC Andover, KS 67002 U.S. Patent pending. Specifications are subject to changewithout notice. Vornado® is a trademark owned by Vornado Air LLC.CL3-0452 RA, V02


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