Vacuum Switch PU-VS (20091) – OEM Airflow Pressure Switch for Englander Pellet Stoves

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SKU: PP80
Regular price $29.99

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Vacuum Switch PU-VS (20091) – OEM Airflow Pressure Switch for Englander Pellet Stoves
Ensure safe and consistent operation of your Englander pellet stove with the PU-VS Vacuum Switch. This OEM air pressure switch detects negative pressure in your stove’s exhaust system, confirming that combustion air is flowing properly. If the airflow is disrupted or reversed, the switch opens and halts pellet feeding to prevent unsafe operation. Essential for both ignition and burn cycles, this part fits a wide range of Englander stove models.

⚠️ Note: As of 2006, most models use 1 PU-VS and 1 CU-VS. Pre-2006 models require 2 PU-VS units.

✅ Key Features:

OEM Pressure Switch – Designed specifically for Englander pellet stoves
Airflow Monitoring – Verifies that exhaust is moving in the correct direction
Automatic Safety Response – Stops the auger and shuts down the stove in unsafe conditions
Retrofittable – Compatible with older metal-style switches from earlier models
Updated Design – May look different but offers the same function and reliability

📌 Specifications:

📌 Part Numbers: PU-VS, 20091, 44288
📌 Type: Vacuum / Air Pressure Switch
📌 Switch Point: 0.17" WC PF
📌 Connection: Hose connects to the exhaust blower
📌 OEM Status: Genuine Englander part
📌 Sold: Individually

🔧 Compatible Models:

Englander Pellet Stoves:

  • 25-PAF

  • 25-PDV

  • 25-PDVC

  • 25-PDVE, 55-SHP22E

  • 25-PDVP

  • 25-PFS

  • 25-PI

🔧 Usage Notes:

  • 2006 & Newer Units: Use 1 PU-VS and 1 CU-VS

  • Pre-2006 Units: Use 2 PU-VS switches

  • If a vacuum switch fails, the auger stops, triggering an E-1 error code

  • Causes of failure may include power loss, blocked flue, combustion blower failure, or dirty fuel


Ensure your pellet stove runs safely and efficiently with the PU-VS Vacuum Switch. Whether you’re replacing a failed component or retrofitting an older unit, this OEM part delivers reliable airflow monitoring and error protection. Order today to keep your Englander stove performing at its best!