My chimney damper does not open. I bought the house last year so have never used it before. Any suggestions on how to get it unstuck? Note that the damper cable DOES move from one side to the other but it just does nothing to open the damper. Looking at it, I can't even tell how this is supposed to work.
Chimney damper does not open
chimneyflue
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I realize this post is "old" however I wanted to post the answers as the information is always relevant to future question askers! :)
I sold venting pipe professionally for 4 years, and have experience designing a variety of systems.
Just a few notes: 1. Always check your clearances to combustible materials. Zero-clearance fireplaces are only zero clearance to certain materials, like masonry, etc. Make sure you take care when addressing this.
Different stoves have different pipe diameters. If you're still debating which model to get, you could save yourself some money by going with 6" diameter versus 8", as the larger it is the more expensive.
Old masonry chimneys are dangerous and should be inspected, even if using a liner.
Onto the parts! Since you are going to be dealing with a freestanding stove as well as a chimney liner, you're likely going to need an adapter as you enter the masonry.
When you come off of your stove with the flue pipe, you would want double-walled black stovepipe. This has a twist-lock connection that will go on your stoves outlet, either top or rear vented. It is more expensive than single-walled pipe, has less clearance requirement of 8 inches versus (18-inch clearance of single-wall) but has longer life, and isn't burning hot to the touch.
Your question about bending the pipe: Definitely do not ever physically bend a pipe to create a curve, etc. Rather, use an angled piece, then a straight, and then another angled piece to complete the connection. This stove-pipe comes with "elbows" at various angles. 45/90 degree are the most common, so you should have no issue angling the pipe to penetrate the masonry at 90 degrees.
The easiest way to complete your system would be to adapt the standard stove-pipe to a masonry liner. For a normal chimney-pipe to masonry-liner system, you will need a few pieces that aren't "standard" on most installations.
Masonry Thimble: This item installs into the 6-8" diameter hole you drill in your masonry chimney. It allows a length of straight pipe to pass through your masonry wall, into the chimney, and connect to the flexible stainless chimney liner. Stove-pipe to Liner Adapter: This piece physically adapts the rigid interior stove pipe to flexible liner.
You asked if the chimney can be a fire-hazard even with a liner; The short answer is yes. The reason being that if there is not enough clearance from the edge of the chimney interior to the outside edge of the chimney liner pipe; heat can be transferred to the brick, which can then catch wood aflame. If you have proper clearance, no fires should occur from the liner/masonry portion.
The only other fire-hazard that should exist is the chimney-cap itself. Make sure that the termination (last pieces) are done correctly. Is there a masonry chimney penetrating above the roofline a good bit? If so, you have it easy and can purchase a Turbo cap with a "spark arrestor" screen.. The cap spins as the heat exhausts out, cooling it, and the screen catches any flaming embers or sparks that might still exist from the burning wood.
Regarding your "Chimneys on exterior cause poor air flow" Statement: From my experience that is mostly false. Only in situations where there are EXTREME weather conditions does this ever occur. The reason this is never a problem with correct installations is that the Class A pipe required for exterior installations is either double wall or triple wall insulated. There are numerous layers of insulation that keep the flue gasses piping hot (ha) until they exit the chimney cap. Please keep in mind when designing a chimney system you want to achieve this: Most air flow. Least bends. Shortest run.
Numerous elbows/Angles cause the exhaust to cool. A rule of thumb is no more than 3 90 degree turns total from stove to cap.
I hope this helps!
It may be that this particular fireplace insert uses passive heating (through the upper and lower grates) to heat the room. From what I could see from your photo's is the flexible duct line in the back is how the unit acquires it's air source (that should be an intake to the unit). The lever as you described it's operation most likely is a damper which controls the amount of air fueling the burning wood. It's a shutter controlling how fast (full open) or slow (partly open) you want the fire to burn. Once the fire has consumed the fuel (wood) the smoke is expelled through the chimney. Lastly, the reason you could detect no evidence of air movement when you attached a fan to the intake vent is because the two grates at the front are not connected to that part of the fireplaces system. Or it is closed from the air intake ducting by a hatch or re-moveable plate (maybe). What I also noticed from the photo of the Model Tag, in the lower left, is that this model "may be used with a blower assembly". From what I remember about fireplace inserts is the fan is attached through a flexible duct to the lower grate on either side of the front. It forces ambient room air through the lower duct vent which is heated from the burning wood. It is expelled as warmed air from the top grate. Go to the Superior Co's site and search for accessories and blowers.
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You need to slide that handle over to the larger slot and then pull it down or push it up.
Ok, good you got it. It was hard to tell from the picture which way it operated. You could try some WD-40 but these dampers are pretty cheaply made and don't have a precision fit. You should try working it back and forth to loosen it up a bit.