1. Important Safety Instructions
Please read all instructions carefully before using this heater. Failure to follow these instructions may result in fire, electric shock, injury, or property damage.
- Do not use this heater in bathrooms, laundry areas, or similar indoor locations where water may be present.
- Always plug heaters directly into a wall outlet/receptacle. Never use with an extension cord or relocatable power tap (outlet/power strip).
- This heater is hot when in use. To avoid burns, do not let bare skin touch hot surfaces.
- Extreme caution is necessary when any heater is used by or near children or invalids and whenever the heater is left operating and unattended.
- Do not operate any heater with a damaged cord or plug or after the heater malfunctions, has been dropped, or damaged in any manner.
- 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.
- This heater has overheat protection. If the heater overheats, it will automatically shut off.
2. Product Overview
The GiveBest 800W Wall Outlet Space Heater (Model MH-20) is a compact, plug-in electric heater designed for supplemental heating in small indoor spaces. It features an LED display, adjustable thermostat, timer function, and comes with a remote control for convenient operation.

Image: The GiveBest 800W Wall Outlet Space Heater, showcasing its front panel with LED display, the rotatable plug, and the included remote control.
Key features include:
- 800W Heating Power: Provides efficient heating for areas up to 100 square feet.
- Remote Control: Adjust settings from a distance.
- LED Display: Clearly shows temperature, timer, and mode settings.
- Adjustable Thermostat: Set your desired temperature for comfort.
- 1-12 Hour Timer: Program the heater to turn off automatically.
- 180° Rotatable Plug: Accommodates various wall outlet orientations.
- Overheat Protection: Enhanced safety feature.
3. Package Contents
- 1 x GiveBest 800W Wall Outlet Space Heater (MH-20)
- 1 x Remote Control
- 1 x User Manual
4. Setup
Before first use, ensure the heater is securely plugged into a standard 120V AC wall outlet. Do not use with extension cords or power strips.
4.1. Adjusting the Rotatable Plug
The heater features a 180° rotatable plug to fit various outlet orientations. If your outlet is upside down or sideways, you can adjust the plug:
- Ensure the heater is unplugged.
- Gently press the button located on the side of the plug housing.
- Rotate the plug to the desired orientation (0°, 90°, or 180°).
- Release the button to lock the plug in place.

Image: A diagram illustrating the 180° rotatable plug feature, showing how to press a button and turn the plug to fit different wall outlet directions.
5. Operating Instructions
The heater can be operated using the control panel on the unit or the included remote control.
5.1. Control Panel and Remote Overview

Image: The remote control for the GiveBest space heater, showing its buttons and a small display mirroring the main unit's LED.
Both the unit and remote feature the following controls:
- Power Button (⏻): Turns the heater ON or OFF.
- Mode Button (M): Cycles through heating modes (ECO, P1, P2).
- Temperature Up (+): Increases the target temperature.
- Temperature Down (-): Decreases the target temperature.
- Timer Button (◷): Sets the auto-off timer.
- Light Button (on remote only): Activates a dim night light feature.
5.2. Powering On/Off
Press the Power button (⏻) on the unit or remote to turn the heater ON. Press it again to turn the heater OFF. When turning off, the fan may continue to run for up to 60 seconds to cool down the heating element.
5.3. Setting the Temperature
When the heater is ON, use the Temperature Up (+) or Down (-) buttons to set your desired room temperature. The LED display will show the target temperature. The heater will cycle ON and OFF to maintain this temperature.
5.4. Selecting a Heating Mode
Press the Mode button (M) to cycle through the available heating modes:
- ECO Mode: Operates at 300W and allows temperature setting between 60°F and 90°F. The heater will adjust its operation to maintain the set temperature.
- P1 Mode: Operates continuously at 300W without temperature control.
- P2 Mode: Operates continuously at 800W without temperature control.
5.5. Using the Timer Function
The timer function allows you to set the heater to automatically turn off after a specified period (1-12 hours).
- With the heater ON, press the Timer button (◷) on the unit or remote.
- Each press will increase the timer setting by one hour, from 1 to 12 hours.
- The LED display will show the set timer duration.
- To cancel the timer, cycle through the hours until '00' is displayed, or turn the heater OFF.
6. Maintenance
Regular maintenance ensures optimal performance and longevity of your heater.
6.1. Cleaning
- Always unplug the heater and allow it to cool completely before cleaning.
- Use a soft, damp cloth to wipe the exterior surfaces of the heater.
- Do not use abrasive cleaners or solvents.
- Never immerse the heater in water or spray water directly onto it.
- Use a vacuum cleaner with a brush attachment to remove dust from the air intake and exhaust grilles.
6.2. Storage
When not in use, store the heater in a cool, dry location, preferably in its original packaging.
7. Troubleshooting
If you encounter issues with your GiveBest space heater, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Heater does not turn on. | No power, unit unplugged, power switch off, or overheat protection activated. | Ensure the heater is securely plugged into a live 120V outlet. Check if the main power switch (if present) is ON. If the unit was recently overheated, unplug it for 30 minutes to reset the overheat protection. |
| Heater turns off unexpectedly. | Overheat protection activated, timer expired, or thermostat reached set temperature. | Check for obstructions around the heater. Unplug and allow to cool for 30 minutes. Verify timer settings. In ECO mode, the heater will cycle off when the set temperature is reached. |
| No heat, only fan runs. | Heater is in fan-only mode (not applicable for this model, but could be a cooling cycle after heating), or thermostat setting is too low. | Ensure the heater is in a heating mode (ECO, P1, P2) and the target temperature is set higher than the ambient room temperature. The fan may run briefly after heating to cool components. |
| Remote control not working. | Dead batteries, obstruction, or out of range. | Replace batteries in the remote. Ensure there are no obstructions between the remote and the heater. Operate the remote within 15 feet of the heater. |
| Burning smell. | New unit odor, dust accumulation, or internal malfunction. | A slight odor is normal for new heaters during initial use. If the smell persists or is strong, immediately unplug the heater and contact customer support. Ensure the heater is clean and free of dust. |
If the problem persists after trying these solutions, please contact GiveBest customer support.
8. Specifications
| Brand | GiveBest |
| Model Number | MH-20 |
| Heat Output | 800 Watts |
| Voltage | 120 Volts |
| Amperage | 6.67 Amps |
| Product Dimensions | 1"D x 1.1"W x 1.2"H (Note: This dimension seems incorrect based on product images, likely a typo in source data. Actual size is compact for wall outlet.) |
| Item Weight | 1.3 pounds |
| Heating Coverage | Up to 100 square feet |
| Special Features | Overheat Protection, Remote Control, LED Display, Adjustable Thermostat, Timer, 180° Rotatable Plug |
| Indoor/Outdoor Usage | Indoor |
9. Warranty and Support
GiveBest products are designed and manufactured to the highest quality standards. For warranty information, technical support, or customer service inquiries, please refer to the contact information provided with your purchase or visit the official GiveBest website.
Please retain your proof of purchase for any warranty claims.