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Why Doesn’t the Heater Evenly Heat My Home

Get QuickAir
22 Jul 2019
3 Min Read

According to trusted findings, approximately 84% of homes in Australia have heaters installed. From this statistic, it is clear that heaters play a focal role in keeping your home habitable during cold/hot conditions. However, during cold conditions, a common challenge that you are likely to encounter is uneven heat distribution in your house. Whereas your living room might be in the optimum temperature, your bedroom on the farthest corner of your house might be freezing cold. However annoying this might be, knowing the culprits behind the uneven heat distribution is critical so that corrective steps can be taken to diagnose the problem.

The article will shed light on the primary reasons why your heater is not heating your home evenly and what you can do to correct the problem.

Causes of Uneven Heating

1. A Wrongly-Sized Heater/Ductwork

A heater unit that is smaller/larger than the capacity of your home cannot heat your house evenly. A smaller heater will not create a stable airflow in the ductwork system while an oversized heater will consume excess electrical energy. Also, large ductworks will cause air pressure to drop, reducing the amount of hot air that reaches distant rooms. On the other hand, smaller ductworks will restrict the flow of the heated air, causing some rooms to be warmer than others.

2. Poor Ductwork Insulation

The insulation problem is common in old homes or in heating systems which have served for long. If your ductwork is poorly insulated, the hot air from the heater will lose its heat energy to the surroundings as it travels through the heating ducts. In consequence, rooms that are located far away from the heating system will not receive adequate heating, causing them to be colder than those closer to the heating machine.

3. Broken and Leaky Heating Systems

Studies have proven that ductwork that leaks about 20% of the heated air can force the HVAC unit to work approximately 50% harder to maintain the same heating conditions. Leaks also cause the efficiency of your heater to drop substantially. Although they might look insignificant, small leaks at the joints/surfaces of your ductwork can hamper proper circulation of hot air. The effects of this can be more pronounced in distant rooms of your house. In extreme cases, leaking ducts can completely stop the distribution of heat energy in some rooms, causing them to be completely cold.

4. Window/Door Sizes

Windows and doors play a focal role in determining the amount of heat that your home retains during and after heating. Most windows are poor insulators. As a result, if some of your rooms have larger windows than others, they will lose more energy in the environment. Therefore, the rooms with large-sized windows will be colder than those with small-sized windows. If your home is constructed with small windows, it will retain much of the heat energy generated. In effect, your rooms will be heated evenly.

5. Heater Problems

Other primary contributors to uneven heating in your home are mechanical/electrical issues of your heater unit. If your heater has served for long and its mechanical and electrical parts are aging, its efficiency will drastically drop, leading to uneven heating. More heater problems include dirt accumulation on heater coils, broken air filters, faulty heater pumps, and broken/lose heater conductors. Also, heating units that have worked for long without undergoing heater maintenance services can contribute to uneven heating.

Corrective Measures to Make Your Heater Heat Your Home Evenly

  1. Always ensure that you purchase an HVAC unit that will comfortably heat your home without straining its performance specifications.
  2. Regularly contact heater repair professionals to come and maintain your ductwork and heater unit for peak performance.
  3. Periodically replace old and worn out ducts and heater components to enjoy maximum heating efficiencies.
  4. During heating, ensure that all your doors and windows are closed to retain more heat energy.
  5. Incorporate a zoning system in your heating to ensure that the temperatures of different rooms are controlled independently. Zoning will go a long way in helping you balance heat distribution in your home.


The above points are essential eye-openers that help you understand why your heater does not heat your home evenly. Also, the corrective measures outlined above will help you plan for the best corrective action to employ for your home. From saving you huge electricity bills to providing a conducive environment for your stay, the benefits of efficient heating systems cannot be overemphasized.

QuickAir provides the same day or the next day heater installation, repair and services all over Australia. So whenever you need a heater technician, you can contact us on 1300 730 896. We are fully licensed and experienced with all major brands and types of heating units.