Important Safety Instructions
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:
- Read all instructions before using this heater.
- This heater is hot when in use. To avoid burns, do not let bare skin touch hot surfaces. Use handles when moving this heater. Keep combustible materials, such as furniture, pillows, bedding, papers, clothes, and curtains at least 3 feet (0.9 m) from the front of the heater and keep them away from the sides and rear.
- Extreme caution is necessary when any heater is used by or near children or invalids and whenever the heater is left operating and unattended.
- Always unplug heater when not in use.
- Do not operate any heater with a damaged cord or plug or after the heater malfunctions, has been dropped or damaged in any manner. Return heater to authorized service facility for examination, electrical or mechanical adjustment, or repair.
- Do not use outdoors.
- This heater is not intended for use in bathrooms, laundry areas and similar indoor locations. Never locate heater where it may fall into a bathtub or other water container.
- Do not run cord under carpeting. Do not cover cord with throw rugs, runners, or similar coverings. Do not route cord under furniture or appliances. Arrange cord away from traffic area and where it will not be tripped over.
- To disconnect heater, turn controls to OFF, then remove plug from outlet.
- 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.
- To prevent a possible fire, do not block air intakes or exhaust in any manner. Do not use on soft surfaces, like a bed, where openings may become blocked.
- 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.
- 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.
- Always plug heaters directly into a wall outlet/receptacle. Never use with an extension cord or relocatable power tap (outlet/power strip).
- This heater includes an audible alarm to warn that parts of the heater are getting excessively hot. If the alarm sounds, immediately turn the heater OFF and inspect for any objects on or adjacent to the heater that may be causing high temperatures. DO NOT OPERATE THE HEATER WITH THE ALARM SOUNDING.
- This appliance has a polarized plug (one blade is wider than the other). To reduce the risk of electric shock, this plug is intended to fit in a polarized outlet only one way. If the plug does not fit fully in the outlet, reverse the plug. If it still does not fit, contact a qualified electrician. Do not attempt to defeat this safety feature.
Product Overview

Figure 1: The Holmes HFH7450-U Tower Heater in its upright position, showcasing its sleek grey design, front grille for heat emission, and stable base. The control panel is visible at the top.
The Holmes HFH7450-U is a 1500-watt tower heater designed to provide supplemental heating for various indoor spaces. It features an AccuTemp Plus digital thermostat for precise temperature control and energy efficiency. The unit can be used in both a tower floor position and a pedestal stand position, offering versatility in placement. Key features include motorized oscillation for even heat distribution, three heat settings, a remote control, a 16-hour on/off timer, automatic shut-off, and tip-over safety protection.
Key Features:
- 1500-watt electric heater with AccuTemp Plus digital thermostat
- 3 heat settings for customizable comfort
- Motorized oscillation for wide heat distribution
- Handy remote control for convenient operation
- Easily converts between tower floor position and pedestal stand position
- 16-hour on/off timer for scheduled operation
- Automatic shut-off and tip-over safety protection for enhanced safety
Setup Guide
Unpacking:
- Carefully remove the heater from its packaging.
- Remove all packaging materials, including any plastic bags or protective foam.
- Inspect the heater for any signs of damage. If damaged, do not use and contact customer support.
Assembly (if required):
The Holmes HFH7450-U can be used in two configurations: tower floor position or pedestal stand position. Ensure the base is securely attached for stability in either configuration. Refer to the diagrams in the original product manual for detailed assembly steps if the unit is not pre-assembled.
Placement:
- Place the heater on a firm, level surface.
- Ensure there is at least 3 feet (0.9 m) of clear space around the front, sides, and rear of the heater from any combustible materials.
- Do not place the heater in areas where it may be easily tipped over or where the power cord could be a tripping hazard.
- Avoid placing the heater near water sources, such as bathtubs, sinks, or swimming pools.
Power Connection:
- Ensure the heater is turned OFF before plugging it in.
- Plug the heater directly into a 120V AC wall outlet. Do not use extension cords, power strips, or surge protectors.
- Verify the plug is fully inserted into the outlet.
Operating Instructions
Control Panel and Remote Control:
The heater can be operated using the control panel located on top of the unit or via the included remote control. The remote control offers the same functionalities as the main control panel for convenience.
Turning the Heater On/Off:
- Press the POWER button (usually marked with a power symbol) on the control panel or remote to turn the heater ON.
- Press the POWER button again to turn the heater OFF.
Setting the Heat Level:
The heater offers three heat settings:
- Press the HEAT SETTING button (often labeled with a fan or heat icon) to cycle through the available heat levels (e.g., Low, Medium, High).
- Select the desired heat output based on your comfort needs.
Using AccuTemp Plus Digital Thermostat:
The AccuTemp Plus digital thermostat allows you to set a precise desired room temperature.
- With the heater ON, press the THERMOSTAT button (often marked with a temperature symbol or +/-).
- Use the UP and DOWN arrows (or +/- buttons) to adjust the target temperature. The display will show the set temperature.
- The heater will automatically turn on and off to maintain the set temperature, helping to conserve energy.
Activating Oscillation:
To distribute heat more evenly across the room, activate the oscillation feature.
- Press the OSCILLATION button (often marked with a rotating arrow symbol) on the control panel or remote.
- The heater head will begin to rotate from side to side. Press the button again to stop oscillation.
Setting the 16-Hour On/Off Timer:
The timer allows you to set the heater to turn on or off automatically after a specified period.
- Press the TIMER button.
- Each press will increase the timer setting by one hour, up to 16 hours. The display will show the selected time.
- Once the desired time is set, the timer will activate. The heater will turn off (if currently on) or turn on (if currently off) after the set duration.
Maintenance
Regular maintenance ensures optimal performance and extends the life of your heater. Always unplug the heater and allow it to cool completely before performing any maintenance.
Cleaning:
- Exterior Cleaning: Use a soft, damp cloth to wipe the exterior surfaces of the heater. Do not use abrasive cleaners or solvents, as they may damage the finish.
- Air Intake/Exhaust Grilles: Use a vacuum cleaner with a brush attachment to gently remove dust and lint from the air intake and exhaust grilles. Ensure these openings are clear to prevent overheating.
- Do not immerse the heater in water or allow water to drip into the interior.
Storage:
- Before storing, ensure the heater is completely cool and clean.
- Store the heater in a cool, dry place, preferably in its original packaging, to protect it from dust and damage.
- Avoid placing heavy objects on top of the heater during storage.
Troubleshooting
If your heater is not operating correctly, consult the following troubleshooting guide. If the issue persists, contact customer support.
| Problem | Possible Cause | Solution |
|---|---|---|
| Heater does not turn on. | No power to the unit. Tip-over safety switch activated. Overheat protection activated. | Ensure the heater is securely plugged into a working 120V AC outlet. Check the circuit breaker. Place the heater on a firm, level surface. If it was tipped, stand it upright and it should reset. Unplug the heater, allow it to cool for 30 minutes, and clear any obstructions from air vents. Plug it back in. |
| Heater produces no heat or insufficient heat. | Heat setting is too low. Thermostat set too low. Air intakes/exhausts are blocked. | Increase the heat setting. Adjust the thermostat to a higher temperature than the current room temperature. Clear any obstructions from the air vents. Ensure proper clearance around the heater. |
| Oscillation is not working. | Oscillation feature is not activated. Obstruction preventing rotation. | Press the OSCILLATION button on the control panel or remote. Check for any objects blocking the heater's rotation. |
| Heater makes unusual noises. | Dust or debris inside the unit. Loose internal component. | Unplug the heater and clean the air vents. If noise persists, discontinue use and contact customer support. |
Specifications
| Feature | Detail |
|---|---|
| Model Number | HFH7450-U |
| Power Output | 1500 Watts |
| Voltage | 120V AC |
| Heating Method | Convection |
| Thermostat Type | AccuTemp Plus Digital Thermostat |
| Heat Settings | 3 |
| Oscillation | Motorized |
| Timer | 16-hour On/Off |
| Safety Features | Automatic Shut-off, Tip-over Safety Protection, Backup Overheat Fuse, Manual User Reset |
| Dimensions (L x W x H) | 9-8/9 x 9-8/9 x 23-2/3 inches (approx. 25.2 x 25.2 x 60.2 cm) |
| Weight | Approx. 4.45 kg (9.8 lbs) |
Warranty and Customer Support
Warranty Information:
Specific warranty details for the Holmes HFH7450-U heater are typically provided with the product at the time of purchase. Please refer to the warranty card or documentation included in your product packaging for terms, conditions, and duration of the limited warranty. Keep your proof of purchase for warranty claims.
Customer Support:
For technical assistance, troubleshooting beyond this manual, or warranty inquiries, please contact Holmes customer support. Contact information can usually be found on the product packaging, the official Holmes website, or the warranty documentation.
When contacting support, please have your model number (HFH7450-U) and proof of purchase readily available.





