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Heatmor Outdoor Furnace Problems

Top 10 Heatmor Outdoor Furnace Problems and How to Avoid Them

Heatmor outdoor furnaces are among the most popular and reliable brands in the market, offering high-quality and durable products that can heat your home, water, and other buildings with wood…

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Heatmor outdoor furnaces are among the most popular and reliable brands in the market, offering high-quality and durable products that can heat your home, water, and other buildings with wood or coal. 

However, like any appliance, Heatmor outdoor furnaces may encounter some problems over time that may affect their performance or safety. 

In this blog post, we will list the top 10 Heatmor outdoor furnace problems and how to avoid them, based on our experience and research.

1. Overheating: How to Prevent Overheating, one of the Common Heatmor Outdoor Furnace Problems

One of the most common and serious problems that can occur with Heatmor outdoor furnaces is overheating, which can damage the furnace components, cause leaks, or even start a fire. Overheating can be caused by several factors, such as:

  • A faulty thermostat, aquastat, or temperature probe that does not regulate the water temperature properly
  • A dirty or clogged filter, blower, or vent pipe that reduces the airflow and causes the furnace to work harder
  • A low water level in the furnace or the bladder exposes the heat exchanger to excessive heat
  • A poor quality or insufficient amount of antifreeze in the furnace that lowers the boiling point of the water
  • A lack of maintenance or cleaning of the furnace that allows creosote, ash, or rust to build up and interfere with the heat transfer

How to Prevent Overheating, one of the Common Heatmor Outdoor Furnace Problems

  • Check and replace the thermostat, aquastat, or temperature probe if they are malfunctioning or inaccurate
  • Clean and replace the filter, blower, and vent pipe regularly to ensure proper airflow and ventilation
  • Maintain a sufficient water level in the furnace and the bladder by adding approved water and antifreeze as needed
  • Use high-quality and corrosion-inhibited propylene glycol as antifreeze and maintain a minimum of 40% mixture by volume
  • Follow the manufacturer’s instructions for maintenance and cleaning of the furnace and remove any creosote, ash, or rust from the firebox and heat exchanger

2. Leaking

Another common problem that can occur with Heatmor outdoor furnaces is leaking, which can waste water and antifreeze, reduce the efficiency and safety of the furnace, and cause environmental damage. Leaking can be caused by several factors, such as:

  • A cracked or corroded heat exchanger, bladder, or weldment that allows water to escape from the furnace
  • A loose or worn gasket, seal, valve, or fitting that does not seal the connections properly
  • A frozen or burst pipe that cracks under pressure from ice expansion
  • A damaged or defective pressure relief valve that does not release excess pressure from the furnace

To prevent leakage, it’s recommended that you:

  • Inspect and replace the heat exchanger, bladder, or weldment if they are cracked or corroded
  • Tighten and replace the gasket, seal, valve, or fitting if they are loose or worn
  • Protect the pipes from freezing by using adequate insulation and antifreeze
  • Test and replace the pressure relief valve if it is damaged or defective

3. Smoking

Another common problem that can occur with Heatmor outdoor furnaces is smoking, which can reduce the efficiency and performance of the furnace, create unpleasant odors and emissions, and violate local regulations. Smoking can be caused by several factors, such as:

  • A wet or green wood that does not burn completely and produces excess smoke
  • A low or high draft that does not provide enough oxygen for combustion or causes incomplete burning
  • A dirty or misaligned burner that does not ignite the fuel properly or creates a poor flame
  • A faulty igniter that does not spark or glow to ignite the fuel

To avoid smoking, it is advised that you should:

  • Use dry and seasoned wood that has a moisture content of less than 20%
  • Adjust the draft according to the manufacturer’s instructions to provide optimal airflow for combustion
  • Clean and align the burner regularly to ensure proper ignition and burning of the fuel
  • Check and replace the igniter if it is faulty or worn out

4. Cycling

Another common problem that can occur with Heatmor outdoor furnaces is cycling, which means that the furnace turns on and off frequently without reaching the desired temperature. Cycling can reduce the efficiency and lifespan of the furnace components, waste fuel and electricity, and cause temperature fluctuations in your home. Cycling can be caused by several factors, such as:

  • A dirty or faulty flame sensor that does not detect the flame in the burner and shuts off the gas valve prematurely
  • A dirty or misaligned burner that does not create a stable flame for combustion
  • A faulty thermostat that does not sense the room temperature accurately or has a short cycle setting
  • An oversized furnace that produces more heat than needed for your home

To prevent cycling, the following steps should be taken:

  • Clean and replace the flame sensor regularly to ensure that it detects the flame and keeps the gas valve open
  • Clean and align the burner regularly to ensure that it creates a stable and consistent flame
  • Check and adjust the thermostat settings to match your comfort level and avoid short cycles
  • Choose the right size of furnace for your home based on your heating load and climate

5. Noise

Another common problem that can occur with Heatmor outdoor furnaces is noise, which can be annoying and disturbing for you and your neighbors. Noise can be caused by several factors, such as:

  • A loose or worn blower belt, fan blade, or motor that vibrates or squeaks when running
  • A dirty or unbalanced blower wheel that creates friction or wobble when spinning
  • A faulty inducer, contactor, or transformer that hums or buzzes when operating
  • A blocked or damaged vent pipe or chimney that creates backdrafting or whistling sounds

To prevent noise, you should:

  • Inspect and tighten or replace the blower belt, fan blade, or motor if they are loose or worn
  • Clean and balance the blower wheel regularly to ensure smooth and quiet operation
  • Check and replace the inducer, contactor, or transformer if they are faulty or noisy
  • Clear and repair the vent pipe or chimney if they are blocked or damaged

6. Rust

Another common problem that can occur with Heatmor outdoor furnaces is rust, which can corrode and weaken the furnace components, reduce the efficiency and performance of the furnace, and cause leaks or failures. Rust can be caused by several factors, such as:

  • A poor quality or low concentration of antifreeze in the furnace that does not protect the metal parts from corrosion
  • A low pH or high chloride level of water in the furnace that causes acidification or oxidation of the metal parts
  • A lack of maintenance or cleaning of the furnace that allows dirt, dust, or ash to accumulate and react with the metal parts
  • A high humidity or moisture level in the environment that promotes rust formation on the metal parts

To avoid rust, you should:

  • Use high-quality and corrosion-inhibited propylene glycol as antifreeze and maintain a minimum of 40% mixture by volume
  • Use approved water that has a pH level of 7.0 to 11.5 and a chloride level of under 50 ppm
  • Follow the manufacturer’s instructions for maintenance and cleaning of the furnace and remove any dirt, dust, or ash from the metal parts
  • Protect the furnace from humidity or moisture by using adequate insulation and ventilation

7. Pilot Light Outage

Another common problem that can occur with Heatmor outdoor furnaces is pilot light outage, which means that the pilot light that ignites the fuel in the burner goes out unexpectedly. Pilot light outage can prevent the furnace from heating up, waste fuel and electricity, and cause safety hazards. Pilot light outage can be caused by several factors, such as:

  • A drafty location that blows out the pilot light with wind or air currents
  • A dirty orifice that clogs the gas flow to the pilot light
  • A bad thermocouple that does not sense the pilot light and shuts off the gas supply
  • A faulty gas valve that does not open or close properly to deliver gas to the pilot light

Here are some tips to prevent your pilot light from going out:

  • Relocate or shield the furnace from drafts by using a windbreak or a shelter
  • Clean the orifice with a needle or wire brush to remove any debris or dirt that blocks the gas flow
  • Replace the thermocouple if it is defective or worn out
  • Check and replace the gas valve if it is malfunctioning or damaged

8. Power Failure

Another common problem that can occur with Heatmor outdoor furnaces is power failure, which means that the electricity supply to the furnace is interrupted due to a blackout, a storm, a fuse blowout, or a circuit breaker tripping. Power failure can stop the furnace from operating, cause temperature drops in your home, and damage the furnace components. Power failure can be caused by several factors, such as:

  • A power outage in your area due to weather conditions, accidents, maintenance work, or other reasons
  • A faulty wiring harness that connects all the electrical components of your furnace with wires and connectors
  • A shorted circuit board that controls the operation of your furnace and communicates with the thermostat
  • A surge protector that protects your furnace from power surges but also cuts off power when overloaded

Follow these steps to keep your furnace from power failure:

  • Have a backup generator or battery system that can provide power to your furnace in case of an emergency
  • Inspect and repair or replace the wiring harness if it is damaged or loose
  • Check and repair or replace the circuit board if it is shorted or burned out
  • Use a surge protector that has enough capacity and protection for your furnace

9. Freeze Damage

Another common problem that can occur with Heatmor outdoor furnaces is freeze damage, which means that the water or antifreeze in the furnace or the pipes freezes and expands, causing cracks or bursts. Freeze damage can waste water and antifreeze, reduce the efficiency and safety of the furnace, and cause leaks or failures. Freeze damage can be caused by several factors, such as:

  • A low or empty water level in the furnace or the bladder that exposes the pipes to cold air
  • A poor quality or low concentration of antifreeze in the furnace that does not lower the freezing point of the water
  • A power failure that stops the circulation pump and the blower from running
  • A faulty thermostat or aquastat that does not turn on the furnace when the temperature drops

Follow these steps to prevent freeze damage to your plumbing system:

  • Maintain a sufficient water level in the furnace and the bladder by adding approved water and antifreeze as needed
  • Use high-quality and corrosion-inhibited propylene glycol as antifreeze and maintain a minimum of 40% mixture by volume
  • Have a backup generator or battery system that can provide power to your furnace in case of an emergency
  • Check and adjust the thermostat or aquastat settings to ensure that they turn on the furnace when the temperature drops

10. Carbon Monoxide Poisoning

Another common problem that can occur with Heatmor outdoor furnaces is carbon monoxide poisoning, which means that the colorless, odorless, and tasteless gas produced by incomplete combustion of fuel leaks into your home and causes serious health effects or even death. Carbon monoxide poisoning can be caused by several factors, such as:

  • A cracked or corroded heat exchanger, bladder, or weldment that allows carbon monoxide to escape from the furnace
  • A blocked or damaged vent pipe or chimney that prevents carbon monoxide from venting outside
  • A faulty inducer or pressure switch that does not draw out or detect carbon monoxide from the furnace
  • A lack of maintenance or cleaning of the furnace that allows creosote, ash, or rust to build up and interfere with combustion

How to reduce the risk of carbon monoxide poisoning in your home

  • Inspect and replace the heat exchanger, bladder, or weldment if they are cracked or corroded
  • Clear and repair the vent pipe or chimney if they are blocked or damaged
  • Check and replace the inducer or pressure switch if they are faulty or malfunctioning
  • Follow the manufacturer’s instructions for maintenance and cleaning of the furnace and remove any creosote, ash, or rust from the firebox and heat exchanger
  • Install carbon monoxide detectors in your home and test them regularly

Conclusion

Heatmor outdoor furnaces are great products that can provide you with reliable and efficient heating for your home, water, and other buildings. However, they may also encounter some problems over time that may affect their performance or safety.

By knowing about these problems and how to avoid them, you can extend the life of your furnace and enjoy its benefits for years to come.

We hope this blog post has helped you learn about the top 10 Heatmor outdoor furnace problems and how to avoid them. If you have any questions or need any assistance with your Heatmor outdoor furnace repair or replacement, please feel free to contact us at any time. We are always happy to help you with your heating and cooling needs.

Thank you for choosing Heatmor as your trusted partner in outdoor heating! Read here more posts.

HVAC aficionado, keeping temperatures just right and comfort levels off the charts. Connect with me on LinkedIn for cooling insights and follow me on Twitter for heating up the HVAC conversation. Let's create the perfect climate together!

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Hi there, I'm Robert Brooks

Hi there, I'm Robert Brooks

I’m so glad you are here! Welcome to my website, where I’ll share easiest HVAC troubleshooting tips, buyers guides, and everything about HVAC cooling and heating system. Learn more about me.

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