An HVAC specialist replaces an old wall heater with a modern thermostat.

Why You Should Invest in Wall Heater Replacement

Since their launch more than 70 years ago, wall heaters have adapted to the world around them, they remain a reliable and efficient heat source today. There are many ways to maintain your wall heaters that will benefit you economically and keep your system safe. In this article, we’ll look at how these clever devices work and explain how to know when it’s time for a  wall heater replacement.

Gas vs. Electric Wall Heaters

Gas Wall Heaters

 Gas wall heaters anchor to the wall and use piped gas to generate heat. A pilot light automatically ignites the gas at the base of the heater and the warmth from the unit is almost instant. This is a low-cost alternative to electric wall heaters with all the failsafe features. These heaters are expected to live for about 15 years but with proper care, can survive up to 30 years. However, as with any piece of gas equipment, you should have your wall heaters inspected annually. Some of the issues that may constitute a wall heater replacement include: 


  • An Increase in your Energy Bills: If your bill seems higher than usual, your gas wall heater may be losing efficiency.
  • Uneven Heating: Does your home seem cold in one room and hot in another? Is the heat taking longer to reach certain rooms? If so, your gas wall heater is performing inconsistently. 
  • Poor Air Quality:  If you’re unsure that your unit has had regular maintenance over the years, you’ll want to look out for humidity problems, excessive dust, and rust particles inside your home. As your gas wall heater approaches the 10-15 year mark, be sure to monitor your indoor air quality.. 
  • Frequent Cycling: You may notice your wall heater turning on and off in frequent intervals. This is called cycling, and the more frequent it becomes, the more likely it is that you’ll need to repair or replace your wall heater. 

Modern gas wall heaters are known to be more cost effective than their existing counterparts. According to SFGATE, gas wall heaters that are 15 years old or more may have an AFUE (annualized fuel utilization efficiency) of 76 percent or less while newer models have a score of upwards of 90 percent. 

Additionally, a modern gas wall heater takes greater safety measures when it comes to protecting your family from heat triggered fire and the release of carbon monoxide. While gas wall heaters may sound like a safety hazard, considering a modern wall heater replacement will greatly reduce any potential risk.  

Electric Wall Heaters

Electric wall heaters came after the original gas wall heater, and are now a first choice in the marketplace. A lightweight metal frame encases an internal heating element for safety. The heating element receives power from electrical current, which produces heat into the surrounding space, while a built in thermostat in the wall-mounted unit, controls the heat level in the room. 

Electric wall heater installation is easy and the units are usable wherever electric power is available, making wall heater replacement even more simple once it becomes necessary. Like gas heaters, electric heaters should be monitored for:

  • Uneven or Lack of Heat: If you’re noticing uneven heat, or that your heater is taking a long time to warm a room, your heating elements may be corroded and you should consider a heater replacement. 
  • Persistent Issues After Cleaning: If you noticed uneven or a lack of heating, cleaning the wall heater could temporarily solve the problem. However, if you’ve cleaned your heater and the issues remain, that’s a sign that your wall heater needs to be replaced.
  • Outdated Technology: One of the most effective ways to keep your home safe from a heating disaster is to make sure your technology is up to date, featuring the latest safety measures and most efficient capabilities. A major change to your wall heating technology will usually occur between the 10 and 20 year mark.

A modern electric thermostat displays the eco-friendly capabilities of modern wall heaters.

Wall Heating vs. Radiator Heating

Although they are close relatives of the radiator, wall heaters differ in the method in which they create heat to warm the space surrounding them. Radiators require hot water to heat a surrounding space. The hot water arrives in pipes under low pressure from the boiler. The heated water moves through pipes that bring the water to the radiator. Then it moves up through a series of fins or coils, and then on through an outlet pipe to the next radiator. Eventually, the water returns to the boiler for reheating under thermostatic control. 

If your home is equipped with radiator heating, be sure to follow the guidelines for regular maintenance and replacement.


There are numerous factors which  rsupport wall mounted heaters, whatever their energy source.  As long as you follow our home safety protocols, your mounted wall heater should perform with ease until it’s time for a replacement. However, it’s important to watch for telltale signs that all’s not well with your equipment and be prepared to invest in a wall heater replacement. Remember to look out for these indicators as your heater reaches the 10-year mark:

    • Unit Speed: Is your heater performing as it should? If it is taking longer than normal to heat a space, you may want to schedule an inspection.
    • Unusual Smell: Any burning or abnormal smells need a thorough investigation. If you notice the smell of burning as you run your heater, turn the unit off immediately and call your electric or gas provider. 
    • Signs of Rust, Leaks and General Deterioration: These are physical symptoms of wear that indicate a wall heater could be nearing the end. While some of these may seem purely cosmetic, you’ll want to schedule an inspection to rule out any major issues.
    • Have your wall heaters regularly serviced by a licensed expert.



Scheduling a Wall Heater Replacement Installation

Wall heaters are here to stay, although their power source may change with green, renewable opportunities continually playing a major role. Just like any other appliance in your home, have your wall heater checked regularly by a professional HVAC specialist. Investing in wall heater replacement is simply adding to the value of your home. 

If you’re noticing some of these symptoms in your wall heater, browse our products to find your ideal replacement system and contact Global Heating & Air Conditioning for top-of-the-line installation!


Click here to schedule a free in-home consultation.

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