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New to Forum - Thelin Parlor Pellet Input

Post in 'The Pellet Mill - Pellet and Multifuel Stoves' started by Jethro Wood, Dec 2, 2012.

  1. Jethro Wood

    Jethro Wood New Member

    Joined:
    Dec 2, 2012
    Messages:
    9
    I've gained from this forum reading and am paying back as best I can on my experiences with the Thelin Parlor Pellet. I put in this stove in 2005 and have burned about 3 tons per year in it since then. I have replaced the ignitor rod once, and the blower fan assembly twice.

    The ignitor burned out after about 4 or 5 years. Not too hard to replace. If it won't light and the rod isn't hot that is the likely problem. Not too hard to replace.

    The blower on mine started getting loud after about 3 years (9 tons). Especially loud on low, with a whistling sound. The blower replacement fixed it and made it very quiet, but a bit pricey and not too easy to do as you have to tilt the stove over and work from underneath. The blower assembly is silicon rubber sealed in. Comes out with some vice grips after getting the three holding bolts out. When I replaced the blower assembly the first time I bought the entire replacement assembly and removed the old one. I took the old one apart and found that the Pittman motor bearings and brushes were worn out. I bought new bearings on ebay. The bearings on both the old and the newer model fan that I have are
    R4A-2RS Bearing Sealed 1/4"x3/4"x9/32" Ball Bearings

    I bought the Nachi Japan bearings hoping they will be more durable. I got the brushes from the local Thelin dealer, there may be other sources, not sure, pipe in if you know of them.

    To rebuild the motor you have to remove the fan assembly and the fan that is in the smoke will be hard to get the allen set screw out on. I soaked mine in penetrating oil for several days and then had to heat the area with a propane torch to get the set screw to release. I don't think this is to big of a deal as this section of the fan lives in the smoke discharge all the time. Take the fan and then the lower mounting bracket off. There is a second cooling fan that has a set screw as well. remember the orientation of the cooling fan as it can be installed either way and it should remain factory. Once all of the fans are off of the motor, remove the brushes under the electrical connections by uncrewing the plastic slotted holders. Pull the brushes out. you will find two Phillips head screws on the end of the motor. Take these all the way out. Carefully remove the motor end cap, don't let the spacer washers fall off the shaft as they have an order and you may have several to take up end play. You will find the R4A-2RS bearings on either end of the motor. Pull the case off the motor. Blow out the motor, don't breathe the dust. Tap out and pull off the existing bearings and replace them with new bearings using good mechanical procedures that do not put loads across the race. On one end you will need to remember the pressed in distance on the shaft and get close to that. You can tap this bearing down using a small copper pipe or other pipe that only hits the inner race on the bearing. On the other end the bearing is lightly pressed into the end cap. Once the bearings are replaced, re-assemble the motor case, cap and screws and install new brushes.

    My rebuilt fan is running just fine for a couple weeks now and is very quiet. I'm going to rebuild the replacement unit that is now out.

    I'm guessing that you can get about 2 or 3 rebuild cycles out of the motor before the armature copper is too worn down to work, then you will likely need a new motor.

    If you know of a source to buy these motors please let us know. Would be nice to get the motor alone with out the fans to save some bucks.

    On mine the motor and brush part numbers are here:

    Pittman
    # 14203C708-R6
    12 VDC
    12-02-10
    Dyn Balanced
    Ametek Technical & Industrial Products

    Fan Assembly Thelin Old PN 43000-120 New PN 00-0005-0009
    Brushes Thelin Old PN 43000-34 New PN 00-0035-0042

    Best,
    Jethro

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  2. imacman

    imacman Guest

    Nice write-up Jethro....I'm sure the other Thelin owners will appreciate it.

    PS A couple of key pics would have been nice for those of us that are "visual learners". ==c
  3. ebengel

    ebengel Member

    Joined:
    Sep 18, 2008
    Messages:
    136
    Loc:
    nw nj
    Jethro, thanks for the great info. I am on my 5th winter running the Thelin, using about 3 tons per season. I have replaved the ignitor twice and the T1 sensor once. At the end of this season it will be time to replace the rope gasket on the door. I have been wondering when the fan motor would be coming due for replacement, and now I think that whewn it does I will replace it and then rebuidl the old one to keep as a spare. Overall we are very happy with this stove and have been using it as our primary heat source since shortly after it was installed.
  4. Jethro Wood

    Jethro Wood New Member

    Joined:
    Dec 2, 2012
    Messages:
    9
    I've got the replacement that I bought tore down in the shop and have the bearings for it now. I'll snap some photos of the rebuild. Too late to get any of the underside of the stove as it is back in service now. Good idea on the photos. I'll work on it.

    As far as the stove goes it has been my primary source of heat since 2005. I live in snow country and have lots of power failures. The DC 12V connection that the Thelin Parlor pellet stove offered was one of my main reasons for choosing it. I've run it for 2 days straight on the battery. I use a marine battery, plain old average size and I figure it would run about 3 days on the battery if needed. I think the stove only draws 35 watts of power on battery. Everything works on battery except the auto ignitor which only works if you have 120VAC plugged in working. The stove looks nice and has been good to me. I have a red one with the gold trim so it looks like an old fire station which I love. Most of the time we run on low and a bag of pellets runs about 24 hours on low for me. I have found that the brand of pellets makes a big difference on the cleaning requirements. I'm running mostly Golden Fire pellets and find them to burn with the least ash and smoke on the glass. I'm in the Sierra with plenty of snow. Lucky to have this machine.
  5. ebengel

    ebengel Member

    Joined:
    Sep 18, 2008
    Messages:
    136
    Loc:
    nw nj
    I have run mine for 4 days on a group 24 marine battery. With good pellets we also run most of the time on low, and also find that pellet quality has a huge effect on cleaning intervals. The only thing I would like to have is an ash drawer, but there is no place for it on this stove, and I love the look of the stove more than I miss an ash drawer

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