Best Window Heaters of 2025
* We independently evaluate all recommended products and services. If you click on links we provide, we may receive compensation.
Window heaters are an innovative solution to combat the cold and draftiness of traditional windows during winter months. These heaters are designed to be installed directly onto windows and provide targeted heat to the immediate area. With their sleek and compact design, they are a great alternative to bulky space heaters and can help to reduce energy costs by focusing heat on specific areas rather than heating an entire room. Window heaters are a practical and efficient way to stay warm and cosy during the colder months.
At a Glance: Our Top Picks
#TOP 1
9.8
#TOP 2
9.7
#TOP 3
9.5
Top 10 Window Heaters
Devola Smart Electric Glass Panel Heater
The Devola Electric Heater allows you to control your heating via a smartphone app, giving you the flexibility to create personalised heating zones. With its integral precision thermostat, it maintains your desired temperature accurately, helping you save on energy costs. You can choose between two power settings for maximum efficiency, ensuring comfort without excessive energy use. Additionally, its IP24 rating makes it safe for use in bathrooms, providing peace of mind while you enjoy a warm space.
Elixir Gardens Low Energy Tube Heater with Temperature Control
The Elixir Tube Heater is an economical and efficient heating solution, costing mere fractions of pennies per hour. With its adjustable temperature control and easy On/Off power switch, you can effortlessly manage your heating needs while saving money and reducing your carbon footprint. Designed to withstand water splashes, this heater is perfect for various applications, such as airing cupboards and outbuildings. Additionally, the sturdy construction ensures durability, providing long-lasting use and peace of mind for your heating requirements.
Spear & Jackson Wall Mounted Panel Heater
The Spear & Jackson Panel Heater is a stylish wall-mounted solution for heating your home. With its digital LED display, you can easily adjust settings to suit your comfort. The comfort mode automatically regulates the temperature, ensuring a consistently pleasant environment. Plus, if it detects an open window, it will switch off to save energy. Its eco mode reduces energy consumption, making it an efficient choice for any household.
Stiebel Eltron CK 20 Trend LCD Heater
The Stiebel Eltron CK 20 Heater is a wall-mounted rapid electric fan heater designed for quick room air heating, making it ideal as a supplementary or booster heater. Its compact plastic casing ensures it fits seamlessly into any space. You will appreciate the backlit LCD controls, which make it easy to adjust settings even in low light. With a convenient 7-day timer, you can programme heating schedules to suit your lifestyle, ensuring warmth when you need it most.
MYLEK 2kW Electric Overdoor Heater with Remote
The MYLEK Overdoor Heater is an energy-efficient solution for heating spaces above doors in your home or business. It offers two heat settings, allowing you to choose between 1kW and 2kW output, which helps you save on energy costs. The intelligent thermostat ensures consistent temperature management, keeping you comfortable year-round. With a programmable timer, you can easily set heating schedules to suit your lifestyle, while the 'Fan Only' setting provides a refreshing breeze during warmer months.
JSH WiFi Electric Glass Panel Heater 2000W
The JSH Electric Glass Heater offers modern convenience with its Wi-Fi capability, allowing you to control your heating from your smartphone. You can create personalised heating zones, ensuring comfort in every room. With two energy-efficient power settings, it helps you save on heating bills while maintaining precise temperature control. The heater also features an open window detection system, which automatically adjusts to prevent unnecessary energy waste. This ensures a warm home without overspending.
Warmlite WL44001 Thermo Fan Heater with 3 Heat Settings
The Warmlite WL44001 Heater is designed to provide effective heating for your home or office with two power settings of 1000W and 2000W. You can save energy by heating only the rooms you need, helping to reduce your energy bills. With three heat settings—cool, warm, and hot—you can easily adapt to different climates. The easy-to-use control panel allows you to adjust the settings conveniently, ensuring your heating needs are met with minimal effort.
KLARSTEIN Wonderwall Smart Infrared Heater with WiFi
The KLARSTEIN Infrared Heater offers convenient smart app controls, allowing you to set your desired temperature from anywhere via WiFi. You can programme the heater to turn on at specific times, ensuring you return to a warm home while saving energy. Its efficient design uses 98% of the heat produced, meaning you enjoy energy savings with minimal loss. The heater provides clean, quiet warmth without CO2 emissions or unwanted noise, making it ideal for allergy sufferers.
Elixir Gardens Low Energy Tube Heater 100cm
The Elixir Tube Heater is an economical heating solution that operates at a fraction of a penny per hour. With built-in temperature control, you can adjust the heat to your needs while saving money and reducing your carbon footprint. This heater is IP44 rated, ensuring it withstands water splashes, making it ideal for areas such as airing cupboards and outbuildings. Safety features like an indicator light provide peace of mind, allowing you to enjoy a warm environment without worry.
MYLEK 2000W Electric Over Door Heater
The MYLEK Over Door Heater is a sleek and stylish solution for keeping your space warm and comfortable. With two heat settings of 1kW and 2kW, you can easily adjust the temperature to suit your needs. The intelligent thermostat and programmable timer allow you to customise the heating schedule, ensuring your home or business is always at the ideal temperature. Additionally, the remote control feature offers convenience, enabling you to operate the heater from a distance, making it perfect for various spaces like shops or cafes.
Frequently Asked Questions (FAQs)
1. Do heated windows exist?
Heated glass was first invented more than 60 years ago to keep condensation off the windshield of aircraft. Only recently has a more advanced technology been developed to incorporate heated glass into double-lite, Low-E sealed window units.
2. Why do heaters go under the window?
Placing the heat source under the window helps even out the hot and cold spots. Cold windows cause cool air currents in the room. The air next to the window cools more rapidly than the rest of the air in the room. This cold air is more dense, so it sinks to the floor.
3. How does a solar window heater work?
HOW IT WORKS. When placed in a window with Southern exposure, interior cool air is drawn through the lower air intakes by the solar powered fan. The collector cells are heated by infrared energy from the sun. Through convection, the air passes through the collectors and retains the barrier heat.
4. Can you open window with heater on?
During the heating season when the outside temperature is below 50-degrees, all windows must be kept closed to prevent waste. During the winter when the outside temperature is below freezing, leaving a window open, even one inch, can freeze the heat lines beneath the window and cause a flood.
During our window heater research, we found 76 window heater products and shortlisted 10 quality products. We collected and analyzed 53,384 customer reviews through our big data system to write the window heaters list. We found that most customers choose window heaters with an average price of £43.23.
The window heaters are available for purchase. We have researched hundreds of brands and picked the top brands of window heaters, including Devola, Elixir Gardens, Spear & Jackson, Stiebel Eltron, MYLEK. The seller of top 1 product has received honest feedback from 1,712 consumers with an average rating of 4.7.
Mohammed Clark is an architect and a contractor. His architectural skills are not limited to designing the plan for structures alone, but it extends to aesthetics and home décor. Before establishing his firm, he worked under a construction firm for eight years. Mohammed has gathered enough experience from his time practicing as a professional architect and now has vast knowledge in home designs and aesthetics.