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  1. coaly

    Insulation

    Leaks at joints; Duct tape. Not the fabric "fix all" type. Real metallic duct tape with UL label. Super sticky stuff made for duct work.
  2. coaly

    Insulation

    Any thing is better than nothing, but it takes a strong blower to push the air out of the top vent and move it across a room. 32 inches across bottom from front to back, 90* up back 22 inches, 90* forward 20 inches then across the room ! The air chamber goes all the way around the Insert. Figure...
  3. coaly

    Insulation

    That is close, as long as you can duct it under or into a side vent intake without decreasing the square inch area of the outlet duct of the blower.
  4. coaly

    Insulation

    With glass doors you have to be careful baffling too much. The baffle thread gives the advice you need. Most importantly is the area above baffle that the exhaust must move through, being the same square inch as the chimney flue. No smaller. Angle makes a difference on the open area you end up...
  5. coaly

    Insulation

    The ones that run from heat are stove top to move radiant heat. They don't move much unless you have no power available and need that type. Then it should be an expensive sterling type engine type to move enough from a freestanding stove. You're extracting heat by convection; You don't have a...
  6. coaly

    Insulation

    It will stay cleaner if you run it the same as you did with no insulation. If you have a pipe damper or baffle, you can adjust them to keep more heat in the Insert instead of leaving so much out. If you have no flue damper, you are controlling what goes out as well as what comes in with the air...
  7. coaly

    Bought a Grandpa Bear Today

    Getting too old to carry it over to your neighbors with the brick in it? Bet you took the doors off too! Let us know how it works if you downsize the chimney! As well as the smoke space square inch above baffle. I haven't seen a freshly painted Grandpa in a while, I'm sort of in suspense here. ;)
  8. coaly

    Converting a coal stove to wood burning

    Correct, firebrick is easiest (if you have room for 1 1/4 thickness) or steel plate in the place of grate, and close pipe damper enough to prevent air rushing in all the leaks as well as trying to seal them up. "Rutland Stove and Gasket Cement" is your friend. The problem with solid bottom will...
  9. coaly

    Grandpa Bear safe?

    It looks close to walls in your pictures. Clearance to combustible wall or anything combustible is 36 inches. A reduction of 66%, down to 12 inches is possible with the correct heat shield. The floor protection may or may not be adequate. Unless it is a UL Listed stove board, it would require...
  10. coaly

    Question about vent on antique coal stove

    You will certainly need a pipe damper to slow the draft having the proper size and insulated pipe. Use a magnetic thermometer on the single wall pipe. That will read about 1/2 of actual flue gas temp. The object is to keep the chimney flue temp above 250* to the top. This is only when smoke is...
  11. coaly

    Question about vent on antique coal stove

    Thanks, I try to explain how things work as simple as possible so people know WHY they need to do what is necessary, not just remember what to do. Something out of the ordinary is always going to happen, so if you know the basics and physics of what makes something work, you can operate it or...
  12. coaly

    Question about vent on antique coal stove

    The coal bed also has LOTS of air coming up through the grate to keep it cool. Other wise the grates warp and melt. Coal uses tons of air compared to wood. Coal heats the rest of the stove more evenly. It is a glowing mass, with small blue flames on top. Wood has very hot and cool cycles. The...
  13. coaly

    Question about vent on antique coal stove

    You don't need a modern stove, you need a wood stove. I'm in the same position as you with acreage of woods, so I have to weigh the work factor taking lots of time for wood or buy coal and give myself a break. About every 3 years I go coal, since storms and dead trees have to be cleaned up...
  14. coaly

    Question about vent on antique coal stove

    His stove isn't cast iron. It's a sheet metal barrel type stove with cast iron burn pot for coal. I'm sure it isn't "air tight" if it didn't go out by closing down all air, so obviously it needs a stove pipe damper to slow the draft to be able to regulate a leaky stove. To the original poster...
  15. coaly

    Huntsman 4020 questions

    Are you referring to it having a barometric damper with a flap that opens and closes like on an oil burner? If you close the air intakes, see if it goes down to a glow with no flames or goes out. This is testing door gasket or door sealing to make sure it is "air tight" first. Where do you...
  16. coaly

    Question about vent on antique coal stove

    I second that ! Do you hear any sizzle from the wood? Notice and liquid boiling out the ends? Are the ends of logs solid, or cracked like wagon wheel spokes? These are signs of unseasoned wood. The cracks in ends are not a good indication, that shows shrinkage which is an indication of at least...
  17. coaly

    Papa Bear (I think)

    It is a Papa Bear; (Mama would have little to no front sheet showing at the sides of door. They use the same door, and Papa Bear being wider has space from door to angle iron) The spring handle, intake dampers, and short handle length are indications of an early one. It would be from the Dunn...
  18. coaly

    Nashua wood stove tied into duct work, how to use?

    That is absurd. Ask them if they are trying to prevent your cement blocks from catching on fire. (and to show you that requirement) The reason for thimbles with airspace between multiple layers of pipe is reducing clearance to combustible materials. Keyword combustible. I would be more...
  19. coaly

    Question about vent on antique coal stove

    Run it physically closed to prevent oxygen from mixing with wood smoke. If the draft is too strong, (air leaks into stove with air inlet closed, burning too fast) you would need a pipe damper to slow draft. Compared to a manual pipe damper, when the opening is open, it is like a closed damper...
  20. coaly

    Upland 107 Question- this is is weird

    Did you find this page on this website? It should have all the info on the different Upland models available. The originator of this Forum and website owned the factory from '84 to 1989 when they ceased production. There are a few threads found by searching upland as keyword in the search...
  21. coaly

    Question about vent on antique coal stove

    You'll find burning coal is a much more even heat, constant temperature, and the stack only runs around 100* making it much more efficient. Fill it with coal once a day and it just keeps going without the mess of wood. The ash is finer, so you have to learn to shake it down with a draft going or...
  22. coaly

    Question about vent on antique coal stove

    I believe the small opening you're referring to is the chimney dilution air intake. (damper) It is used to reduce draft by allowing indoor air up chimney such as a barometric damper cools chimney to slow draft. It extends burn time for overnight by slowing draft. Compared to a manual pipe...
  23. coaly

    Upland 107 Question- this is is weird

    Looks like you're picturing a damper, not baffle? The right baffle stays in place, away from the air intake side. The left baffle should have a rod extending straight through the left side to slide by pulling out, to the left, which opens the center for fireplace mode, pushing in should move...
  24. coaly

    Nashua wood stove tied into duct work, how to use?

    Some blowers have oil holes where a few drops a year prevents bearing failure. Others have sealed bearings. Look at both ends of the blower motor carefully. At a minimum check the chimney flue for obstructions, we don't know if there is a screen on the top to prevent any thing from building...
  25. coaly

    Nashua wood stove tied into duct work, how to use?

    When starting it, bring the firebox up to temperature before turning on blowers. You want the firebox hot for a cleaner burning fire. You can extract so much heat you will create creosote in he chimney. Put a magnetic surface thermometer on the stove pipe at elbow. You have no clue what you're...
  26. coaly

    Fisher Grandpa Bear

    Yes, NFPA 211 has a section for unlisted stove reduced clearance. This is the Standard codes are adopted from. 1 inch air space with air intake opening at the bottom is easily achieved with cement board sitting on a few bricks to raise it. Standoffs must be something like ceramic fence...
  27. coaly

    Fisher Grandpa Bear

    With the proper wall shield you can go down to 12 inch clearance. What is the square footage you're heating? Is the plane still on the tower in front of Bob and Carols? Unique property for the right individual. Do you know where the original A frame house was?
  28. coaly

    Insurance Question for non U.L. Mama bear

    It doesn't make it safer, it proves the appliance was tested to standard testing specifications. Your older stove was tested to other testing criteria other than the universally accepted UL criteria used today. At one time there were 4 testing standards across the US and areas of the country...
  29. coaly

    Insurance Question for non U.L. Mama bear

    Yes, those prices are from past sales history. Before 2014 they averaged $100 a set. 2015 averaged 120 - 139. 2016 averaged 219 - 249 with a spike Dec. 2016 269 - 300. They have been 300 - 350 ever since. The most common white metal angle sets should be cheaper than the straight older cast iron...
  30. coaly

    Buffalo Stove

    There is no book value for classic stoves. I’ts worth whatever buyer and seller agree upon. Values also vary greatly by season. Now is the time to get top dollar. Watch local prices on Craigslist to get an idea what others are asking. If it has a UL Listing tag, it can be installed and used...