Field Controls 8MG1 Gas Draft Control (01986501) – 8-Inch Double-Acting Regulator for Gas-Fired Furnaces & Boilers
Optimize the combustion and venting efficiency of your gas-fired heating system with the Field Controls 8MG1 Gas Draft Control. This 8-inch, double-acting regulator is a high-precision solution designed for a wide range of gas-fired appliances, including furnaces and boilers. It is particularly effective for conversion burner installations, power venting applications, and appliances where a standard draft hood cannot be utilized.
High-Precision Double-Acting Technology
Unlike standard draft diverters, the MG-1 provides superior control over venting pressures, ensuring your appliance operates at peak stability:
Double-Acting Safety: Because this control is double-acting, it is designed to open outward to relieve positive vent system pressures as low as 0.01″. This protects your system from backdrafts and pressure spikes.
Accurate Adjustments: Achieve precise draft levels using simple and accurate weight adjustments. This unit allows for fine-tuning from 0.01″ to 0.1″, meeting the specific requirements of modern gas appliances.
Combustion Stability: By maintaining a consistent draft, the MG-1 helps eliminate venting problems and improves combustion stability on gas atmospheric installations.
Versatile Application Support
The Field Controls 01986501 is engineered to handle specialized venting scenarios that standard hoods cannot manage:
Ideal for Induced Drafts: Perfect for gas draft-induced appliances operating with mechanical inducers or sidewall power venters.
Conversion Burners: Highly recommended for conversion burner setups where precise air-to-fuel ratios and draft control are critical for safety and efficiency.
Atmospheric Troubleshooting: A reliable fix for gas atmospheric appliances experiencing venting instability where a traditional hood is impractical.
Important Condition Note
Transparency First: This unit has been previously installed and uninstalled. As a result, there are some small holes drilled into the frame from the initial mounting. However, the control has never been used in active operation and remains in perfect mechanical condition. It does not include retail packaging. Please review all photos for a clear view of the pre-drilled holes.
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Product Specifications
| Feature | Details |
| Brand | Field Controls |
| Model | 8MG1 |
| Part Number | 01986501 |
| Type | Double-Acting Gas Draft Control |
| Adjustment Range | 0.01″ to 0.1″ |
| Size | 8-Inch |
| Application | Gas-fired furnaces, boilers, and conversion burners |
