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SureFire Stove Sentry 512 For Pellet Stoves, Harman and more By Sec America

  • Based on 81 reviews
Condition: New
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$529.00 Why this price?

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Availability: Only 9 left in stock, order soon!
Fulfilled by SEC AMERICA CORP

Arrives Saturday, May 30
Order within 11 hours and 32 minutes
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Brand: SEC America


Material: Metal


Color: Black


Assembly Required: Yes


Ventilation Type: Direct Vent


Ventilation Type: Direct Vent


Fuel Type: Pellet


Efficiency: High Efficiency


Mounting Type: Freestanding


Portable: No


Material: Metal


Color: Black


Required Assembly: Yes


Brand Name: SEC America


UPC: 701980444814


Global Trade Identification Number: 14


Part Number: SF512


Model Number: SF512


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, May 30

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

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Top Amazon Reviews


  • Works on the Harman P68 pellet stove
I hooked it up as described in the included paperwork with little to no difficulty (it is a solid piece of equipment that feels heavy for its size). The battery leads from the SureFire 512 had the 3/8" (?) ring type terminal lug attachments on them (not the alligator spring clips and not the fat 19 mm battery post connectors). The SureFire 512 ring terminal lug attachments slid right down onto the threaded posts that (luckily for me) were on the battery that I bought, that made the connection easy and secure with the nuts that came with the battery (I think the ring lugs on the SureFire 512 would probably work just fine with a battery that uses bolts too). I tested the Surefire 512 as the power source for our Harman P68 pellet stove that was in full operating/heating mode (about 15 minutes into the burning cycle). When I unplugged the wall power supply feeding the SureFire 512, the SureFire 512 automatically kicked in and kept the Harman P68 fans blowing and the flame burning - just as advertised. We will find out how long the battery I bought will keep this stove running when the power goes out for real. For now, we are happy to have spare hours to get the generator up and online while we still have heat functioning inside. ... show more
Reviewed in the United States on November 8, 2022 by K.W.

  • Works well, but expensive
I use it for my pellet stove and luckily i haven't lost power yet but i do regularly test it my unplugging the power cord and it kicks on like it should. Its expensive but you really need one if you have a pellet stove. Without one if power goes off, the fire in your stove continues to burn whats in the pot but there is no power to the blower fan to pull the smoke outside so your home will fill with smoke. Keep in mind you will need to buy a deep cycle battery for 130 which will add to the cost. I advise going with a the largest battery that makes sense for you costwise. ... show more
Reviewed in the United States on December 16, 2019 by Andrew Viens

  • I WISH I HAD BOUGHT IT SOONER!
Seriously, I wish I had made the investment and bought this when I purchased my pellet stove. I've had my pellet stove for a number of years and it never failed...when the power goes out, of course the stove goes out, the house fills with smoke and we have no heat! Now, the power goes out, the Surefire automatically switches to my 12 volt battery and my stove STILL WORKS! Great Product! ... show more
Reviewed in the United States on February 12, 2019 by Kindle Customer

  • Pellet Stove
Works my Harman pellet stove for around 6 hours if power goes out. Pricey, but would recommend
Reviewed in the United States on February 17, 2026 by Cool game

  • Great investment for a power outage
Product is a little pricey, but it works great. Our power goes out intermittently and frequently. It has already proven itself worthy and saved us from a smoke seepage from a sudden outage as well as having continued heat during an outage. Easy to hook up. I would recommend getting marine battery terminals for a secure connection. ... show more
Reviewed in the United States on January 10, 2020 by M. Smith

  • Not working.
I just hooked mine up and at first it worked intermittently now it doesn't kick on stove at all but it does charge batteries. I'm returning for another, maybe it's defective. I'm running a 2012 Quadrafire Castile insert with blowers only using 170 watts when running. Hope it's only defective. I'll change rating when try new one, I want to give it 5 stars. Update: Don't buy if you have a Quadrafire pellet stove. I called manufacturer and they said it doesn't work with them. Would have been nice if it says that somewhere because the company who makes them says they have had many such complaints regarding Quadrafire not working. Now I have to send 2 back. ... show more
Reviewed in the United States on February 18, 2019 by Joseph Solarino

  • Does not provide zero interruption
The problem is that in case of a power interruption it doesn't take over instantly. There is a 1'4 second gap. We're on a thermostat controlled Harman (new) so the stove shuts down and you have to reset it. That requires you to be present when the outage occurs or else the stove will shut down and you will get smoke into the room. They advertise "no interruption" which isn't the case. ... show more
Reviewed in the United States on September 15, 2022 by Ruth

  • Easy and relieving.
This DOES work for the Englander in my living room. Easy to understand and hook up. Straight-forward protection. Takes all of the fear away from power outages, as pellets are our primary heat source. A five hour outage last winter in Northern Maine was a lot of smoke, and almost a frozen crisis. This year we can take 9 to 18hrs off grid, no sweat. Hands down, one of the very best tools I have ever bought! ... show more
Reviewed in the United States on December 9, 2021 by Gosh

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