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Wall Heaters: A Comprehensive Guide for Homeowners

Creating a comfortable haven in your home year-round is no small feat. Efficient heating plays a crucial role, but what if your central heating system struggles to keep specific rooms warm, or you desire a more targeted approach? Wall heaters enter the scene as a compelling alternative or complement. These space-saving units offer a unique solution. Mounted directly on walls, they deliver focused warmth in desired areas. Available in electric and gas-fired options, wall heaters hold the potential to lower your energy bills through zoned heating.

This comprehensive guide dives into everything you need to know about wall heaters. We'll explore their types and functionalities, helping you choose the right one for your needs. We'll also cover installation considerations and proper use. So, get ready to explore the world of wall heaters and discover how they can contribute to a cozier and potentially more cost-effective heating solution for your home.

What is a Wall Heater?

Wall heaters are space heaters permanently mounted on your interior walls. Unlike central heating systems that distribute warm air through ducts throughout a house, wall heaters directly heat the air in a room. This targeted approach offers several advantages:

  • Zoned Heating: You can turn on the heater only in rooms you're using, potentially reducing energy consumption compared to heating the entire house.

  • Quick Heating: Wall heaters can warm up a room relatively quickly, ideal for chilly mornings or evenings.

  • Supplemental Heating: They can act as a supplement to your central heating system, providing extra warmth in specific areas that tend to be cooler.

Types of Wall Heaters

Wall heaters come in two main categories: electric and gas-fired. Each offers distinct advantages and considerations, so understanding their functionalities will help you make an informed choice.

A. Electric Wall Heaters


These operate by converting electricity into heat through heating elements. They're generally considered safer than gas models but may have higher operating costs depending on your electricity rates. Here is an overview of various typical kinds:

  • Convection Heaters: These work by heating air around a central element, causing it to rise and circulate throughout the room. They are generally quiet and affordable but may take longer to heat a large space.

  • Fan-Forced Heaters: Similar to convection heaters, they use a heating element to warm air. However, they incorporate a fan to circulate the warm air more efficiently, providing faster heating for a room.

  • Radiant Heaters: These heaters don't directly heat the air. Instead, they emit infrared radiation that warms objects within their range. This can create a more comfortable feeling of warmth, especially in drafty rooms. However, they may not be suitable for heating large spaces efficiently.

  • Baseboard Heaters: These low-profile electric heaters are typically mounted along the baseboards of walls. They use convection or radiant heat to warm the room from the ground up.

Pros of Electric Wall Heaters:

  • Generally considered safer than gas models due to the absence of open flames and flue gasses.

  • Often easier to install, especially for DIY enthusiasts (consult a qualified electrician for electrical work).

  • May be a good choice for areas with expensive natural gas rates.

Cons of Electric Wall Heaters:

  • Operating costs can be higher than gas heaters in regions with high electricity prices.

  • May not be as effective in heating large spaces due to limitations in heating output.

B. Gas-Fired Wall Heaters


These burn gas to produce heat and require a flue or vent to expel exhaust gasses. They can be more energy-efficient than electric heaters in some regions, but proper ventilation and safety measures are crucial.

Flued vs. Vent-Free Heaters:

  • Flued heaters expel exhaust gasses through a chimney or vent pipe installed outside the house. They are generally considered safer but require professional installation and maintenance of the venting system.

  • Vent-free heaters do not require a vent but have stricter safety regulations and placement limitations. They may be suitable for occasional use in well-ventilated rooms but require proper precautions to avoid carbon monoxide risks.

Pros of Gas-Fired Wall Heaters:

  • Can be more energy-efficient than electric heaters in some regions with lower natural gas prices.

  • Often provide a higher heating output, making them suitable for larger spaces.

Cons of Gas-Fired Wall Heaters:

  • Require a gas line connection and proper venting for flued models, adding complexity to the installation.

  • Stricter safety regulations compared to electric heaters, necessitate professional installation and adherence to safety protocols, including carbon monoxide detection.

Choosing the Right Wall Heater

With a good understanding of the different types of wall heaters available, it's time to delve into choosing the one that best suits your needs. Here are some key factors to consider:

1. Heating Needs:

  • Room Size: Consider the square footage of the room where you plan to install the wall heater. Electric heaters are typically suitable for smaller spaces, while gas-fired models can handle larger areas.

  • Climate: If you live in a region with harsh winters, a higher BTU (British Thermal Unit) output might be necessary for adequate heating. Both electric and gas-fired heaters come in various BTU ratings.

2. Energy Efficiency:

  • Operating Costs: Research electricity or gas rates in your area to understand the potential running costs of each type of heater. While gas heaters may have lower fuel costs in some regions, electricity might be cheaper in others. Factor in your expected usage time as well.

  • BTU Output: Choose a heater with a BTU output that matches your heating needs. Oversized heaters can be wasteful, while undersized ones won't effectively warm the space.

3. Safety:

  • Electric Heaters: Generally considered safer, but ensure proper electrical wiring and avoid overloading circuits.

  • Gas-Fired Heaters: Opt for flued models for optimal safety. Vent-free heaters require strict adherence to safety regulations, including proper ventilation and carbon monoxide detector installation. Always prioritize professional installation for gas-fired heaters.

4. Installation Considerations:

  • Electric Heaters: Most electric models are easier to install and may be suitable for DIY enthusiasts with electrical knowledge. However, always consult a qualified electrician for electrical work to ensure safety and compliance with regulations.

  • Gas-Fired Heaters: Require a gas line connection and proper venting for flued models. This necessitates professional installation by a licensed gas fitter to ensure safety and adherence to building codes.

5. Additional Features:

  • Thermostats: Look for models with built-in thermostats for automatic temperature control and energy savings.

  • Timers: Programmable timers allow you to set heating schedules for added convenience and efficiency.

  • Remote Controls: Remote control functionality provides the ease of adjusting the heater from a distance.

  • Aesthetics: Consider the design and size of the heater to ensure it complements your décor.

6. Budget:

  • Initial Cost: Factor in the purchase price of the heater, along with potential installation costs depending on the chosen type (electric vs. gas-fired).

  • Operating Costs: Research estimated running costs based on your electricity or gas rates and expected usage.

By carefully considering these factors, you can make an informed decision and select the ideal wall heater that meets your heating needs, budget, and safety priorities.

Installing Wall Heaters

Wall heater installation can be a straightforward process for electric models, but gas-fired heaters require a more complex approach due to safety considerations. Here's a breakdown of the general steps involved and the importance of professional involvement:

Electric Wall Heaters

  1. Electrical Considerations: Before any installation, ensure your electrical system has the capacity to handle the additional load of the heater. Consult a qualified electrician to assess your wiring and potentially recommend upgrades if needed.

  2. Mounting the Heater: Locate a suitable wall location considering proximity to an outlet, furniture placement, and safety regulations (avoid flammable materials nearby). Mark and drill mounting holes according to the manufacturer's instructions and secure the heater bracket to the wall.

  3. Electrical Wiring: For safety reasons, it's highly advisable to have a qualified electrician handle the electrical wiring. They can connect the heater to the appropriate circuit and ensure everything adheres to electrical codes.

Gas-Fired Wall Heaters

The installation process for gas-fired heaters is significantly more complex and requires professional expertise for several reasons:

  • Gas Line Connection: Connecting the heater to a gas line necessitates a licensed gas fitter to ensure proper and leak-free installation.

  • Venting Installation (Flued Models): Flued heaters require a flue pipe installation to safely expel exhaust gasses outside the house. This involves drilling through walls and routing the vent pipe to an exterior location, adhering to building codes and safety regulations. Vent-free heaters, while not requiring a vent, have even stricter placement limitations and safety protocols.

  • Safety Checks: Once the heater is installed, a qualified gas fitter will perform thorough safety checks to ensure proper gas pressure, functioning safety features, and no gas leaks. They will also ensure carbon monoxide detectors are installed in the appropriate locations for added safety.

Importance of Professional Installation (Gas-Fired Heaters):

Improper installation of gas-fired wall heaters can pose significant safety risks, including gas leaks, carbon monoxide poisoning, and fire hazards.  For these reasons, it's crucial to prioritize professional installation by a licensed gas fitter who possesses the expertise and knowledge to ensure safe and code-compliant heater operation.

While electric heaters might seem like a DIY project for those comfortable with electrical work, consulting a qualified electrician is still recommended for tasks like assessing your wiring capacity and ensuring proper electrical connections. They can also provide valuable guidance on safe heater placement and operation.

Using and Maintaining Wall Heaters

Once you have your wall heater installed, proper use and maintenance become crucial for optimal performance, safety, and longevity. Here are some key practices to follow:

Using Wall Heaters

  • Thermostat Settings: Utilize the built-in thermostat to regulate the temperature efficiently. Setting a comfortable temperature and allowing the heater to cycle on and off helps maintain warmth without wasting energy.

  • Timer Functionality (if available): Programmable timers are a great way to schedule heating times. Utilize them to ensure the heater operates only when needed, like during mornings and evenings, for added convenience and energy savings.

  • Placement: Avoid placing furniture or flammable objects too close to the heater to prevent fire hazards. Maintain a safe clearance as specified in the manufacturer's instructions.

  • Ventilation (Gas-Fired Heaters): For gas-fired heaters, especially vent-free models, ensure adequate ventilation in the room while the heater is operating. This helps prevent a buildup of carbon monoxide and other byproducts.

Maintaining Wall Heaters

  • Cleaning: Regularly clean dust and debris from the heater's vents and intake grills to ensure optimal airflow and heating efficiency. Follow the manufacturer's cleaning instructions to avoid damaging the unit.

  • Filter Replacement (if applicable): Some electric wall heaters have air filters that trap dust. Replace them periodically according to the manufacturer's recommendations to maintain proper airflow and performance.

  • Professional Maintenance (Gas-Fired Heaters): It's advisable to have a qualified gas fitter inspect your gas-fired wall heater annually. This professional maintenance can identify potential issues, ensure proper gas pressure and safety features are functioning correctly, and contribute to the overall lifespan of the heater.

By following these simple practices, you can ensure your wall heater operates safely, efficiently, and delivers comfortable warmth for years to come.

Cost Considerations

The overall cost of wall heaters involves two main factors:

  • Upfront Cost: This includes the purchase price of the heater itself and the installation cost. Electric heaters generally have a lower upfront cost compared to gas-fired models due to their simpler installation requirements.

  • Operating Costs: This refers to the ongoing cost of powering the heater. Electricity or gas rates in your area will significantly influence the operating expenses. While gas-fired heaters can be more energy-efficient in some regions with lower gas prices, electric heaters might be cheaper to operate in others. Factor in your expected usage time when considering running costs.

It's important to weigh both upfront and operating costs when making your decision. While gas-fired heaters might have a lower operating cost in specific situations, the higher upfront cost due to installation complexity needs to be factored in. Additionally, consider potential savings from zoned heating with wall heaters compared to heating your entire house with a central heating system.


Wall heaters offer a compelling alternative or supplement to traditional central heating systems. They provide targeted warmth in specific areas, potentially lowering energy bills through zoned heating. This comprehensive guide explored the different types of wall heaters, their functionalities, and factors to consider when choosing the right one for your needs. We also emphasized the importance of professional installation for gas-fired heaters and proper use and maintenance practices for both electric and gas models. By understanding your heating requirements, budget considerations, and safety priorities, you can make an informed decision and leverage wall heaters to create a cozier and potentially more cost-effective heating solution for your home.

Frequently Asked Questions (FAQ)

Are wall heaters safe?

Electric wall heaters are generally considered safe, while gas-fired models require proper installation, venting (flued models), and maintenance for safe operation.

Can I install a wall heater myself?

Which type of wall heater is more efficient?

How long do wall heaters last?

What are some alternatives to wall heaters?



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