--- product_id: 53447346 title: "Quadrafire Vacuum Low Draft Negative Pressure Switch Sensor SRV7000-531 - OEM" brand: "quadrafire" price: "340 zΕ‚" currency: PLN in_stock: true reviews_count: 8 category: "Quadrafire" url: https://www.desertcart.pl/products/53447346-quadrafire-vacuum-low-draft-negative-pressure-switch-sensor-srv7000-531 store_origin: PL region: Poland --- # Includes Both Hoses & Spade Connectors Differential Vacuum Pressure Switch Made in USA with 90-day warranty Quadrafire Vacuum Low Draft Negative Pressure Switch Sensor SRV7000-531 - OEM **Brand:** quadrafire **Price:** 340 zΕ‚ **Availability:** βœ… In Stock ## Summary > πŸ”₯ Keep your fire burning strong with precision vacuum sensing! βš™οΈ ## Quick Answers - **What is this?** Quadrafire Vacuum Low Draft Negative Pressure Switch Sensor SRV7000-531 - OEM by quadrafire - **How much does it cost?** 340 zΕ‚ with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/53447346-quadrafire-vacuum-low-draft-negative-pressure-switch-sensor-srv7000-531) ## Best For - quadrafire enthusiasts ## Why This Product - Trusted quadrafire brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Safety-First Operation:** Automatically disables auger feed motor if unsafe vacuum conditions are detected - β€’ **Durable & Reliable Build:** Plastic housing with brass contacts designed for long-lasting operation under 300W load - β€’ **Seamless OEM Compatibility:** Direct replacement for all previous Quadra-fire vacuum switches, ensuring hassle-free installation - β€’ **Precision Airflow Monitoring:** Senses air flow/restriction in firebox & exhaust for optimal stove performance - β€’ **Made in the USA with Confidence:** Backed by a 90-day manufacturer warranty and no-hassle replacement guarantee ## Overview The Quadrafire Vacuum Low Draft Negative Pressure Switch Sensor SRV7000-531 is a high-precision differential vacuum pressure switch designed to monitor airflow and restrictions within your stove’s firebox, exhaust, vent pipe, and fuel hopper. Compatible with a wide range of Quadra-Fire, Heatilator, and Pleasant Hearth models, this OEM replacement part ensures safe and efficient stove operation by controlling the auger feed motor based on vacuum conditions. Made in the USA with durable materials and backed by a 90-day warranty, it includes both hoses and spade connectors for easy installation. ## Description Reliable OEM Airflow Monitoring - This OEM pellet stove vacuum pressure switch functions as a safety sensor switch designed to monitor airflow conditions in compatible pellet stove systems.Detects Airflow & Vent Pressure - The integrated vacuum switch acts as an exhaust back pressure sensor, helping detect airflow restrictions within the pellet stove pipe and internal vent pathways.Supports Proper Feed System Operation - This flow switch sensor monitors airflow inside the fire box and exhaust chamber. If abnormal pressure is detected, the pressure switch can interrupt the feed system circuit.OEM Replacement Built for Compatibility - Designed as a dependable pellet stove vacuum switch with included hose connections. This pressure switch sensor is manufactured to OEM specifications for reliable performance. Review: Works for Quadrafire Castile - So far so good. I have a circa 2005 Quadrafire Castile. Symptom was that after initial feed and fire ignites, second stage of auger feed does not begin, and fire goes out. Original Vacuum switch part DFS-221-271 failed in 2019. Got OEM replacement part DFS-221-347. That switch worked for five years, but same problem happened again. This new part has different form factor (round instead of square) and plastic rather than metal, so wasn’t sure if it would work, but got it installed, and unit is working again just in time for colder weather. Red wire on + and orange wire on -. Hope this info helps others troubleshooting their stove. Review: Price - Awesome ## Features - OEM FIT WITH INCLUDED HOSES - Reliable pellet stove vacuum switch replacement designed for airflow monitoring. Includes hose connections. Replaces all previous Quadra-fire vacuum switches, including SRV7000-166, 812-3430, 812-1990 and SRV7000-447 - PRECISE AIRFLOW DETECTION - Advanced vacuum switch and flow switch sensor monitors airflow within the fire box, venting, and pellet stove pipe. Functions as a responsive pressure switch sensor for pellet stove systems and helps detect restrictions and support proper pellet stove operation. - REPLACES MULTIPLE PARTS - Direct OEM pressure switch replacement for SRV7000-166, 812-3430, 812-1990 and SRV7000-447. This sensor switch functions as a dependable pellet stove vacuum pressure switch in compatible units. - SUPPORTS SAFE STOVE OPERATION - Designed as an exhaust back pressure sensor and flow switch that monitors pressure changes in the fire chamber and exhaust path, helping pellet stoves respond to airflow issues. - COMPATIBLE WITH MANY MODELS - OEM pressure switches designed for select Quadra-Fire, Heatilator and Pleasant Hearth models. Durable fireplace vacuum monitoring component helps regulate airflow and maintain stove performance. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B076BWJQPH | | Actuator Type | Plunger | | Best Sellers Rank | #972,282 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #528 in Fireplace Replacement Parts | | Brand | Quadrafire | | Brand Name | Quadrafire | | Circuit Type | 1-way | | Compatible Devices | Quadra-Fire: ~ 800 ~ 1000 ~ 1100I ~ Castile FS ~ Castile Insert ~ Santa Fe FS ~ Santa Fe B ~ Santa Fe Insert ~ Classic Bay 1200 FS – CB1200 ~ Classic Bay Insert – CB1200I ~ Contour ~ Original Mt Vernon – 4 Spd Control ~ Mt Vernon AE FS ~ Mt Vernon AE Insert ~ Mt. Vernon E2 FS ~ Mt. Vernon E2 Insert ~ Edge 60 Insert Heatilator: ~ Eco-Choice PS35 – PH35 ~ Eco- Choice PS50 – PH50 ~ Eco-Choice CAB50… | | Connectivity Protocol | X-10 | | Connector Type | Spade Connectors and Hose Nozel | | Contact Material | Brass | | Contact Type | Normally Open | | Control Method | Remote | | Customer Reviews | 4.5 out of 5 stars 198 Reviews | | International Protection Rating | IP00 | | Item Weight | 5.6 ounces | | Manufacturer | HHT | | Material Type | Plastic | | Model | SRV7000-531 | | Mounting Type | vent | | Number of Items | 1 | | Number of Positions | 1 | | Operation Mode | automatic | | Part Number | SRV7000-531 | | Specification Met | UL | | Switch Type | Flow Switch, Pressure Switch | | Terminal | Screw | | UPC | 850745008102 | | Unit Count | 1.0 Count | | Wattage | 300 watts | ## Product Details - **Actuator Type:** Plunger - **Brand:** Quadrafire - **Circuit Type:** 1-way - **Connector Type:** Spade Connectors and Hose Nozel - **Contact Type:** Normally Open - **Material:** Plastic - **Mounting Type:** vent - **Operation Mode:** automatic - **Switch Type:** Flow Switch, Pressure Switch - **Terminal:** Screw ## Images ![Quadrafire Vacuum Low Draft Negative Pressure Switch Sensor SRV7000-531 - OEM - Image 1](https://m.media-amazon.com/images/I/617c2Zfd3iL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works for Quadrafire Castile *by M***7 on November 12, 2025* So far so good. I have a circa 2005 Quadrafire Castile. Symptom was that after initial feed and fire ignites, second stage of auger feed does not begin, and fire goes out. Original Vacuum switch part DFS-221-271 failed in 2019. Got OEM replacement part DFS-221-347. That switch worked for five years, but same problem happened again. This new part has different form factor (round instead of square) and plastic rather than metal, so wasn’t sure if it would work, but got it installed, and unit is working again just in time for colder weather. Red wire on + and orange wire on -. Hope this info helps others troubleshooting their stove. ### ⭐⭐⭐⭐⭐ Price *by S***S on February 16, 2026* Awesome ### ⭐⭐⭐⭐⭐ My Vernon fix *by J***P on December 11, 2025* Perfect for my Vernon quadra fire. Original. ## Frequently Bought Together - Quadrafire Vacuum Low Draft Negative Pressure Switch Sensor SRV7000-531 - OEM - Quadrafire Limit Snap Disc Switch #2 - Castile, Sante fe SRV7000-268 812-0320 FC - Quadra-Fire Replacement Manual Reset Snap Disc #3 --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pl/products/53447346-quadrafire-vacuum-low-draft-negative-pressure-switch-sensor-srv7000-531](https://www.desertcart.pl/products/53447346-quadrafire-vacuum-low-draft-negative-pressure-switch-sensor-srv7000-531) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-05-04*