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🔥 Keep your fire burning safe and smart with QuadraFire precision! ⚙️
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 in fireboxes and exhaust systems. Compatible with a wide range of Quadra-Fire, Heatilator, and Pleasant Hearth models, this OEM part ensures seamless replacement and reliable operation. Made in the USA with durable brass contacts and including both hoses and spade connectors, it features automatic safety control to prevent auger feed motor operation during airflow faults. Backed by a 90-day manufacturer warranty, it’s the trusted choice for maintaining optimal stove performance and safety.
| ASIN | B076BWJQPH |
| Actuator Type | Plunger |
| Best Sellers Rank | #133,717 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #81 in Fireplace Replacement Parts |
| Brand | 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 |
| Date First Available | October 10, 2017 |
| International Protection Rating | IP00 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 5.6 ounces |
| Item model number | SRV7000-531 |
| Manufacturer | HHT |
| Number of Items | 1 |
| Number of Positions | 1 |
| Operation Mode | automatic |
| Package Dimensions | 8.75 x 6 x 1.5 inches |
| Terminal | Screw |
| UPC | 850745008102 |
| Unit Count | 1.0 Count |
| Wattage | 300 watts |
M**7
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.
J**P
My Vernon fix
Perfect for my Vernon quadra fire. Original.
D**8
Quadrafire Vacuum Low Draft Negative Pressure Switch Sensor SRV7000-531 - OEM
Ordered the part and thanks to University of YouTube. Was able to install within mins. Fit like a glove and the stove is back in operation with no problems.
O**Y
Great product
Worked as it should.
J**.
It works
Easy install and it works.
S**O
Perfect fit
Fit right in replaced 10 year old original part
T**P
Perfect fit for PelPro pellet stove
Fixed the problem.
C**M
Worked great!
Arrived early, installed easily (I only used one screw because it's half the size of the OEM vacuum switch), and my CB 1200i pellet stove was back and working again like normal! I used the longer of the two included hoses and it installed very easy. 15 minute job.
Trustpilot
4 days ago
2 weeks ago