Important Safety Instructions
Read all instructions before using this heater. Failure to follow these instructions may result in fire, electric shock, or injury.
- Do not use this heater in bathrooms, laundry areas, or similar indoor locations where water is present.
- Always plug heaters directly into a wall outlet/receptacle. Never use with an extension cord or relocatable power tap.
- 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 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 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 unplug heater when not in use.
Product Overview
The GiveBest MH20 is a compact 800W wall outlet space heater designed for indoor use in small spaces like bedrooms, offices, and bathrooms. It features an LED display, adjustable thermostat, timer function, and can be controlled via a remote or a mobile application.
Key Features:
- Low Energy Consumption: Operates at 800 watts, offering energy efficiency.
- APP Control & LED Display: Easy temperature setting via app, remote control, and clear LED screen.
- 180° Rotatable Plug: Accommodates various power socket orientations.
- Safety Overheat Protection: Automatically shuts off to prevent overheating.
- Faster & Quiet Heating: Brushless DC motor and aerodynamic blades ensure efficient and quiet operation.
- Compact Size: 3.9 x 3.5 x 6.5 inches, ideal for portability and saving floor space.
Product Components:
- GiveBest MH20 Wall Outlet Space Heater
- Remote Control
- User Manual (this document)
Setup
- Unpack the Heater: Carefully remove the heater and its accessories from the packaging. Retain packaging for future storage or transport.
- Choose a Location: Select a suitable wall outlet in a small indoor space (e.g., bedroom, office, bathroom). Ensure the area is clear of obstructions and flammable materials.
- Plug In the Heater:
The heater features a 180° rotatable plug. If your power outlet is upside down or oriented differently, gently press and rotate the plug to fit the outlet correctly. Insert the heater directly into a standard 3-prong wall outlet. Do not use extension cords or power strips.

This image illustrates the 180° rotatable plug design, allowing the heater to be plugged into various outlet orientations. The diagram shows the plug being rotated to fit an upside-down outlet.
- Remote Control Setup: Insert batteries (not included) into the remote control. Ensure correct polarity.
- App Connection (Optional): For WiFi control, download the GiveBest app from your device's app store. Follow the in-app instructions to connect your heater to your home WiFi network.
Operating Instructions
Controls:
The heater can be operated using the touch controls on the unit, the included remote control, or the mobile application (if connected).
On-Unit Controls

This image shows the heater's LED display and touch controls for power, temperature adjustment, and mode selection.
- Power Button: Press to turn the heater ON or OFF.
- Temperature +/- Buttons: Adjust the desired temperature setting.
- Mode (M) Button: Cycle through heating modes (P1 - 300W, P2 - 800W, ECO).
- Timer Button: Set the auto-off timer (1-12 hours).
Remote Control

This image displays the remote control with buttons for power, temperature, mode, timer, and ECO mode.
- Power Button: Turns the heater ON/OFF.
- +/- Buttons: Adjust temperature.
- P1/P2 Buttons: Select 300W (P1) or 800W (P2) heating modes.
- ECO Button: Activates energy-saving ECO mode.
- Timer Button: Sets the auto-off timer.
- Light Button: Turns the LED display light ON/OFF.
Operating Modes:
- P1 Mode (300W): Low heat setting for gentle warmth and reduced energy consumption.
- P2 Mode (800W): High heat setting for faster and more powerful heating.
- ECO Mode: The heater automatically adjusts its power output to maintain the set temperature, optimizing energy use.
Setting the Timer:
The timer allows you to set the heater to automatically turn off after a specified period (1-12 hours).
- Press the Timer button on the unit or remote.
- Use the +/- buttons to select the desired number of hours.
- The heater will automatically turn off after the set time.
Maintenance
Regular maintenance ensures optimal performance and longevity of your heater.
- Cleaning:
- Always unplug the heater and allow it to cool completely before cleaning.
- Use a soft, damp cloth to wipe the exterior surfaces. Do not use abrasive cleaners or solvents.
- Use a vacuum cleaner with a brush attachment to remove dust from the air intake and exhaust grilles.
- Never immerse the heater in water or allow water to drip into the interior.
- Storage:
- Store the heater in a cool, dry place when not in use.
- It is recommended to store the heater in its original packaging to protect it from dust and damage.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Heater does not turn on. | Not plugged in securely; Power outlet malfunction; Overheat protection activated. | Ensure the heater is firmly plugged into a working outlet. Check the circuit breaker. Unplug the heater, let it cool for 30 minutes, then plug it back in. |
| Heater stops working unexpectedly. | Overheat protection activated; Tip-over switch activated (if applicable); Timer expired. | Unplug and allow to cool. Ensure the heater is on a stable surface. Check timer settings. |
| Heater is not heating effectively. | Incorrect mode selected; Room size too large; Air inlets/outlets blocked. | Select P2 (800W) mode. Ensure the heater is used in an appropriately sized room. Clear any obstructions from the grilles. |
| Remote control not working. | Dead batteries; Obstruction between remote and heater. | Replace batteries. Ensure a clear line of sight to the heater's sensor. |
Specifications
| Feature | Detail |
|---|---|
| Brand | GiveBest |
| Model Number | MH20 |
| Heat Output | 800 Watts |
| Special Feature | Energy Efficient, Remote Control, LED Display, WiFi Control, Adjustable Thermostat, Timer, Overheat Protection, 180° Rotatable Plug |
| Form Factor | Wall Mount (Plug-in) |
| Indoor/Outdoor Usage | Indoor |
| Product Dimensions | 5"D x 5"W x 8"H |
| Item Weight | 1.3 pounds |
| Max Temperature Setting | 90 Degrees Fahrenheit |
| Fuel Type | Electric |
| Room Type | Bedroom, Home Office, Study Room, Bathroom |
Warranty and Support
For warranty information, please refer to the documentation included with your purchase or contact GiveBest customer support directly.
If you encounter any issues or have questions regarding your GiveBest MH20 heater, please contact our customer service team for assistance. Contact details can typically be found on the product packaging or the official GiveBest website.





