How to Convert Propane Heater to Natural Gas: Practical DIY Guide for Safe and Efficient Transition
How to Convert Propane Heater to Natural Gas?
To convert a propane heater to natural gas, you will need to follow a few steps.
First, check if your propane heater comes with conversion parts for natural gas.
If not, you will need to order a conversion kit.
Next, turn off the gas and power to the heater before beginning the conversion.
Install new orifices, springs, and other components specified in the conversion kit, ensuring that the orifice tips are soldered or brazed to the correct diameter.
Check for a regulator at the propane tank and make sure city gas is stepped down in stages.
Change furnace orifices/jets and the gas valve spring, following the furnace’s instructions.
Avoid exceeding the heat exchanger’s rating to prevent damage.
Use a manometer to check the pressure and document all wiring connections.
Finally, check the regulator pressure, main burner orifices, pilot orifice, and ignition control module when converting from natural gas to propane.
Key Points:
- Check if propane heater has conversion parts for natural gas, if not order a conversion kit
- Turn off gas and power before starting the conversion
- Install new orifices, springs, and other components specified in the conversion kit
- Check for regulator at propane tank and step down city gas in stages
- Change furnace orifices/jets and gas valve spring as instructed by furnace
- Use manometer to check pressure and document wiring connections
Did You Know?
1. The process of converting a propane heater to natural gas involves changing the burner orifice size to accommodate the different gas pressure. This allows for a more efficient and cost-effective heating system.
2. Propane has a higher heating value compared to natural gas, meaning it produces more heat per unit of volume. As a result, when converting a propane heater to natural gas, the heating capacity may be slightly reduced.
3. Natural gas is lighter than air, while propane is heavier. This difference in density affects the way the gas is distributed within the heater. When converting from propane to natural gas, it is important to adjust the air-to-fuel ratio to ensure optimal combustion.
4. Natural gas is a cleaner burning fuel compared to propane. By converting a propane heater to natural gas, you are helping to reduce greenhouse gas emissions and minimize the environmental impact of heating.
5. It is crucial to consult a qualified professional when converting a propane heater to natural gas. Gas-powered appliances require careful handling, and an expert technician will ensure the conversion is done safely and in compliance with local regulations.
1. Installing New Orifices, Springs, And Other Components
When converting a propane heater to natural gas, there are several important steps to follow:
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Install new orifices, springs, and other components: The orifices control the flow of gas into the burner. Since propane orifices are typically smaller than natural gas orifices, it is necessary to replace them with correctly sized ones for safe and efficient operation.
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Turn off the gas supply: Before installing the new orifices, make sure to turn off the gas supply to the heater. This is a crucial safety precaution.
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Remove old orifices: Use a wrench or pliers to remove the old orifices. Be careful not to damage the threads.
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Replace with new orifices: Take the new orifices and secure them firmly in place. It is essential to tighten them securely but avoid overtightening.
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Replace other necessary components: Apart from the orifices, check if any springs or other components need to be replaced for the conversion. It is important to ensure all necessary parts are installed correctly.
Remember to always prioritize safety when performing any gas-related modifications.
- Make sure to turn off the gas supply before starting the conversion.
- Use a wrench or pliers to remove the old orifices.
- Securely install the new orifices, but be careful not to overtighten.
- Check if any additional components need to be replaced for the conversion.
“Safety should be the top priority when converting a propane heater to natural gas.”
2. Changing Furnace Orifices/Jets And Gas Valve Spring
When converting a propane heater to natural gas, it is necessary to replace not only the orifices in the burner, but also the furnace orifices/jets and the gas valve spring. These components play a crucial role in controlling the flow of gas to the burners and regulating the gas pressure in the furnace.
To change the furnace orifices/jets and gas valve spring, follow these steps:
- Turn off the gas supply to the furnace.
- Using a wrench or pliers, remove the old orifices/jets and gas valve spring.
- Replace them with the appropriate ones specifically designed for natural gas.
- Make sure to carefully adhere to the manufacturer’s guidelines and instructions for these replacements to ensure proper operation and safety.
Remember, improper installation or using components that are not suitable for natural gas can lead to malfunctioning and safety hazards.
To summarize:
- The furnace orifices/jets control the gas flow to the burners in the furnace.
- The gas valve spring regulates the gas pressure.
- Replace these components with ones suitable for natural gas.
- Follow the manufacturer’s guidelines and instructions for proper installation and safety.
3. Checking For A Regulator At The Propane Tank
Before converting a propane heater to natural gas, it is important to check if there is a regulator installed at the propane tank. Regulators are responsible for reducing the pressure of the gas from the tank to a safe and usable level. However, natural gas typically has a lower pressure than propane, so using a propane regulator may not be suitable for natural gas.
If there is a regulator at the propane tank, it should be replaced with a natural gas regulator. This ensures that the pressure of the natural gas entering the heater is appropriate for safe and efficient operation. If you are unsure about how to replace the regulator or if you need assistance with this step, it is recommended to consult a professional.
- Check if there is a regulator installed at the propane tank
- Replace the propane regulator with a natural gas regulator
- Consult a professional for assistance with regulator replacement.
4. Understanding City Gas Is Stepped Down In Stages
It is important to understand that city gas, which is the natural gas supplied to homes, is stepped down in stages to reach the appropriate pressure for residential use. The gas travels through various pipelines and pressure-reducing stations, gradually reducing the pressure to a safe and usable level.
When converting a propane heater to natural gas, it is essential to consider this gradual pressure reduction and ensure that the heater can safely handle the lower pressure of natural gas. Failure to do so can result in damage to the heater and potential safety hazards.
- City gas (natural gas) is stepped down in stages to reach the appropriate pressure for residential use.
- The gas travels through various pipelines and pressure-reducing stations, gradually reducing the pressure to a safe and usable level.
- Converting a propane heater to natural gas requires considering the gradual pressure reduction.
- It is important to ensure that the heater can safely handle lower natural gas pressure.
- Failure to do so can result in damage to the heater and potential safety hazards.
5. Checking If Parts Are Included In Newer Furnaces
If you are working with a newer furnace, it is important to check if the necessary conversion parts are included. Some manufacturers offer conversion kits or specific components that are designed for their furnaces. These kits typically include the appropriate orifices, springs, valves, and other components required for conversion.
To determine if conversion parts are included in newer furnaces, refer to the manufacturer’s documentation or reach out to their customer support. Having the necessary parts included simplifies the conversion process as you will have the correct components readily available.
6. Ordering A Conversion Kit If Necessary
If the necessary conversion parts are not included with the furnace or if you are working with an older model, you may need to order a conversion kit separately. A conversion kit typically includes all the components required to convert a propane heater to natural gas, such as orifices, springs, valves, and other necessary parts.
When ordering a conversion kit, ensure that it is compatible with your specific heater model. Double-check the specifications and requirements outlined by the manufacturer to ensure a smooth and successful conversion process. Once the conversion kit arrives, carefully follow the included instructions to install the components properly.
By following these steps and taking the necessary precautions, you can safely and effectively convert your propane heater to natural gas. Remember to always consult the manufacturer’s instructions and guidelines, and if you are unsure about any step of the conversion process, it is advisable to seek professional assistance.
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Frequently Asked Questions
Are natural gas and propane heaters the same?
Natural gas and propane heaters are similar in their purpose of providing heat, but they differ in terms of their fuel composition. While both types of heaters serve to generate warmth, there is a distinction in their efficiency due to the differing energy content of their fuels. Propane, with its higher BTU content, provides double the stored energy per unit compared to natural gas. Consequently, propane heaters can accomplish the same heating task using half as much fuel as natural gas heaters, making propane a more efficient choice.
Can you use propane in a natural gas system?
No, propane cannot be used in a natural gas system. Propane orifices are specifically designed to accommodate the higher pressures of propane, which results in a higher flow rate. Using a natural gas orifice with propane could lead to dangerous flow rates, potentially resulting in a strong flame or even an explosion. Thus, it is crucial to use the appropriate orifice for your specific gas system to ensure safety and prevent any hazards.
Can LPG heater run natural gas?
No, LPG heaters cannot run on natural gas directly. LPG and natural gas operate at different pressure points, which makes them incompatible. In order to use natural gas with an LPG heater, a conversion is necessary. However, it is important to note that not all gas appliances can be converted due to design or certification restrictions.
Which is better propane or natural gas?
When considering the comparison between propane and natural gas, the answer depends on one’s priorities. While natural gas emits less carbon dioxide during combustion, it is crucial to assess the overall gas emissions. Propane, on the other hand, proves to be a greener alternative due to its efficiency, non-toxicity, and low emission output. Ultimately, the better option depends on one’s perspective and consideration of the broader environmental impact.