Tjernlund AD-1 Auto Draft Stove Blower Model

Easy to install, and fit well. We installed this to reduce the smoke coming out of our wood stove. It was especially bad when it was windy outside. This fan works great when starting the fire and makes it so we can get the fire started quickly without smoke coming into the house. Wish we had done this year's ago!

We have had so many smokey room problems over the years with our woodstove and this has in a way solved all of it. I personally think that all woodstoves should be required to have a draft enducer built in in some way. I did alot of pre-reading so the install went realativley smoothly. I bought a new piece of 6 inch piece from Lowes, cut it to size and installed the fan on the clean pipe (no mess) and then replaced a section with the fully assembled piece. Its mounted horizontially. A few changes I made. I did the potentiometer adjustment to make the slower fan speed much slower. I havent had the need to use the slowest speed much though, so its was probably not nessessary. I then removed the switch from the ridiculously ugly housing its installed in (they could have done so much better) and relocated it into a single din housing that I mounted on the wall behind the wood stove. Everything sealed with black high temp RTV. Install went well and came out clean. The PROS, if there is even one or two coals left, I can get a fire going again by putting in a few new logs, turning on the fan and leaving the door open an inch or two, the draft coming in is enough to get new logs burning. Anytime I want to stoke a slow fire, just do the same as described for a minute or two. Anytime we need to add new logs on a low burning fire, we will turn on the fan, and then put logs in. No smoke enters the room at all, which is a huge change to what we experienced before we got the draft enducer(fan). Cons, its fugly. Looks like it was enginered in the 1920s. Leaks like a strainer until every edge is sealed. As others have said, the RTV will let off some seriously bad fumes when first fired. If you stay in the room your eyes will be stinging all day. All in all I am happy with this thing and my wife enjoys the benefits enough to give me a pass on its looks.

I am a career tradesman with the proficiency to build, fix, modify and install just about anything and this product has compelled me to take the time to write the FIRST negative review I have EVER written in my life about ANYTHING. Read that again....I cannot comprehend how a company can manufacture, promote, sell and pretend to stand behind something this utterly flawed and useless.1.) The fan housing is JUNK because: - it is spot welded and smoke comes out of the seams * I sealed the inside with wood stove cement to fix - The paint is garbage and melts/burns off during the first fire *I'm a resilient redneck who doesn't complain but the house filled with noxious fumes - The opening where the fan motor shaft enters the housing is literally a 2" hole straight into the stove pipe....smoke pours out. Who designed this? Are you kidding me? * I machined a custom metal plate that sealed the hole to within 1/32 inch and it was almost a solution - The flanges that screw to the stove pipe leave substantial gaps at the corners. I sealed with a large amount of high temp goop, but will the average buyer know how to do that? -The fan control knob faces the Wong way and is hard to reach. * I modified the mounting hardware to fix this but JFC!2.). The speed control switch is JUNK. Died after 2 days of use. Replaced with fan control switch from hardware store.3.). Fan blades inside stove pipe obstruct air flow too much when not running. It has to run constantly or it restricts up-draft more than whatever issue you're trying to fix.I am throwing this in the garbage. There are no redeeming qualities even worth mentioning. JUST DONT BUY IT.

As you can see in the pictures, I am using 5" 12 ga steel round tubing. Single wall. I had to build a saddle mount and re-angle the flanges, that I am totally unclear how it's designed to seal without any exhaust leaking. The flat 1/2" rope gasket appears inadequate. The pen points to shows a 1.5" cut out for the shaft, which will get sealed with 1/4" ceramic fiber board and Rutland high temp stove sealant. An arrow on the fan body would be nice pointing to airflow direction, but I figured it out once it was wired.Update: it's been running with mods to sealing for two months, and it works very well. I updated to 4 stars

works well to keep smoke from coming out of the fire box when you open the stove door to put in wood. great for getting the fire going. I turn it down or off once logs are burning ( it does make the wood burn hot and will burn it faster than normal if you keep it running).Very pleased.

This fan is great. Starts fires very easy. I also turn on when cleaning ash and the dust stays in the fireplace. I love being able to open the door all the way to add more wood and no smoke comes into the house. I tested customer service and they get an A+ from me. They were great.

While this fan does provide inline draft boost, as intended, my reviews are low. It is difficult even for knowledgeable people to install. Once installed, even with extra attention to sealing the motor housing as mentioned in other reviews, smoke pours out of the hole the fan shaft sits in. It also is heavy hanging on the outside of the chimney and very noisy. I can't imagine using it regularly in an occupied living space. And after 10 min of use the fan motor gets very hot requiring shut down so as to avoid burn out. Not a good value unless you are desperate for draft boost.

A great idea, but horrible execution. As mentioned by numerous others, the device needs many modifications to be made functional. A smaller hole by the motor is a must; the 1-1/2" knockout works great and is only a buck or two at the hardware store. I also recommend some high temp silicone for every single crack in the device. When the fan is running, it will billow out smoke from the seams in the fan cage. Also, the installation template is incorrect; the holes do not line up.All in all, a handy device for the handy person. If you're expecting plug and play, this is not the device for you.