1-778-759-9864
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BCFurnace

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BCFURNACE

021-885

$55.00

+5% Tax • Shipping calculated at checkout.

U.S. Duties/Taxes, if applicable, may be due at time of delivery.

Name

SWITCH, LOW PRESSURE 25 OP/41 CL

1units available

Pickup available at 75 Blue Mountain St #3

Usually ready in 24 hours

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Fast Delivery
Local Pickup

Not sure this fits your furnace? Call us — we're happy to help

Product Details

Description

This professional-grade low-pressure air proving switch is a critical safety component designed for HVAC systems and industrial heating units. Functioning as a draft inducer safety sensor, this switch monitors the pressure differential within the combustion blower or ventilation system. It ensures that the appliance is venting correctly and that there is adequate airflow before allowing the ignition sequence to begin. By accurately detecting pressure changes, this switch prevents the buildup of dangerous gases and protects the system from operating under hazardous conditions. It is an essential replacement part for restoring the reliable performance and safety of furnace and rooftop heating units.

Specifications

Type
Air Pressure Switch
Size
Small
Dimensions
not specified × not specified × not specified
Application
Commonly used in forced-air furnaces, rooftop HVAC units, and commercial heating systems to prove inducer fan operation and vent integrity.
Specifications
Low pressure threshold; Open point: 0.25 in WC (25); Close point: 0.41 in WC (41); SPST or SPDT configuration typical for air-proving applications.

Not sure this is the right part?

Our team is happy to help you verify compatibility before you order. We'll confirm it fits your specific furnace model.

1-778-759-9864

Mon–Sat 8AM–9PM PST · Or email parts@bcfurnace.com

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Frequently Asked Questions

Is the 021-885 a genuine OEM part?
Yes, the 021-885 is a genuine OEM replacement part manufactured by BCFurnace. We source all Air Pressure Switches from authorized distributors to ensure exact-fit compatibility. This Air Pressure Switches is backed by our 100% compatibility guarantee — if it doesn't fit your furnace, we'll make it right.
How do I know if the 021-885 is compatible with my BCFurnace furnace?
The easiest way is to match the part number (021-885) with your furnace model number. Visit the BCFurnace page on our site and enter your model number in the search bar — our system will show all compatible Air Pressure Switches for your specific unit. You can also call our technicians at 1-778-759-9864 for free compatibility verification.
How fast can I get the 021-885 shipped?
Most Air Pressure Switches including the 021-885 ship within 1–2 business days from our warehouse. We ship across Canada and the United States with tracking on every order. For urgent BCFurnace repairs, contact us at 1-778-759-9864 for expedited shipping options.
Can I pick up the 021-885 at your store?
Yes! Local pickup is available at our Coquitlam, BC location: 75 Blue Mountain St #3. Air Pressure Switches orders are usually ready within 24 hours. Call us at 1-778-759-9864 to confirm the 021-885 is in stock before visiting.

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