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  1. #21
    Join Date
    Jun 2010
    Posts
    93

    Default Alum Heat Exchanger

    Alum heat exchangers are good for heat transfer but it ends there. Weil, Buderus taught alum hx's. Weil started including what I call magic potion with the boilers. It basically coats the inside of the hx to help slow down the corrosion process. Buderus has also seen leakers. Burnham is no longer offering the Freedom which has an alum hx.

    I would take a look at the Viessmann Vitodens 100. www.viessmann-us.com. Its a simple no thrills condensing boiler that will provide 95%AFUE with a limted lifetime warranty on the hx. 10 years full and then 90% after year 11. It's basically the same warranty as a traditional cast iron boiler.

    Its a great boiler for fin tube jobs. That 60K sounds a little high for a 1,500 sqft house. I would ask for a heat loss be done of the home. Heat emitter measurement is also necessary to be match to the loss so you can set a heating curve.

    Sold hundreds of Vitodens in the past couple of years. Avg fuel savings is 35-50% if properly installed and set up.

  2. #22
    Join Date
    Dec 2010
    Posts
    24

    Default Re: Slant Fin Boiler Good or Bad?

    if you are installing a copper tubed boiler installeither a RAYPAK or a CAMUS you won't have near the problems

  3. #23
    Join Date
    Dec 2008
    Posts
    4

    Default Re: Slant Fin Boiler Good or Bad?

    So, as it ends up, the ignitor was the cause of the A-1 problem. The fix was incredibly simple. Shaving to end of one of the ignitors to a point instead of a flat surface. The spark then stayed at one point and did not bounce around the tip of the ignitor. Have not had one failed ignition in two years since the simple fix.

    The Slant Fin BOBCAT is the only high efficiency boiler that I know of that is totally made the the USA. This includes the heat exchanger. Not only that, the heat exchanger does not require yearly maintenance, as with most of the other high efficiency boilers.

    The best part about Slant Fin though is their customer support. I don't know of another boiler company that even comes close.

  4. #24
    Join Date
    Apr 2011
    Posts
    11

    Smile Re: Slant Fin Boiler Good or Bad?

    I have installed many of all the following boilers and I would recommend a Buderus or Viessmann boiler as they are much better than Slant Fin.

    Good Luck!!
    Last edited by JLMCDANIEL; 04-30-2011 at 08:25 PM. Reason: User violation

  5. #25
    Join Date
    Apr 2011
    Posts
    3

    Default Life is a run in the fields of wind

    Life is a run in the fields of the wind 1 belong to me that the wind, the roof edge pre-recorded chirp, retaining ewha are cold. And my the wind, overflow fields, over the bank of the river, the hair of a little over willow, dongfeng break, blown open not carve patterns or designs on woodwork, come. Windows wooden division If there is joy, that necessarily mother, a tight right-and like a frowning tight mother, the double eyebrow; If there are bitter,...
    www ebuybus com

  6. #26
    Join Date
    Oct 2008
    Posts
    6

    Smile Re: Slant Fin Boiler Good or Bad?

    Interesting that people who sell specific products talk down companies that make products in this country and employ amarican workers. Anyway the Slantfin bobcat boiler is running very well and the entire problem with the A01 seems to have been related to the igniter design. Slantfin does have a new design that essentially does as was suggested in another post and modifies the end points. Since I have installed the replacement igniter I have not had a single failure.
    As for the heating cost savings, I had oil and the cost was about $3200( 2008) during the heating season for heating oil. The Slantfin Bobcat has been in for 3 full heating seasons and the cost is about $750 for the season. Hot water heating during the summer is about $35.00 per month. Would I recommend this boiler, yes without hesitation especially with the support Slantfin gave. My only caution would be select a dealer you can trust and get recommendations on because installation is critical and they should understand the requirements of a high efficiency boiler .

  7. #27
    Join Date
    Jan 2009
    Posts
    3

    Default Re: Slant Fin Boiler Good or Bad?

    I posted in this thread in spring of 2009, when I was having the A01 error problem. Shortly thereafter, I called Slantfin and was sent a new controller board and a new ignitor free of charge. I was very pleased with their customer service people. They were very helpful and friendly.
    The system worked flawlessly and until the start of this heating season. I have a solar hot water panel, so my boiler is basically shut down all summer. When it attempted to start for the first time in October the dreaded A01 error reappeared. I did not wait the fifteen minutes for the controller board to retry, but rather pulled the ignitor and sanded (with very fine sandpaper) the contact points on the ignitor.
    It has worked flawlessly since then.
    I don't mind the simple annual task of cleaning the ignitor but I plan on calling Slantfin and seeing if a newer better fix is now available.
    I read a previous post regarding a controller board specific to propane. The board I have does not have a specific "propane" designation, so that may help.
    Overall, the boiler has been very efficient. My annual propane use is less than half of what it was as when I had an old cast iron boiler with improperly sized zone valves (installed by a "professional" HVAC company).

  8. #28
    Join Date
    Oct 2008
    Posts
    6

    Thumbs up Re: Slant Fin Boiler Good or Bad?

    Ok right now Iím looking for some wood to knock on. I installed the Bobcat in 2008. Once I got past the A01 issue with the new igniter design I have had no problems. The cost for heating is extremely low. My gas bill run about $98.00 to $130.00 per winter month. The other months for hot water only are between $35.00 and $45.00 per month. Not bad.

  9. #29
    Join Date
    Feb 2014
    Posts
    2

    Default Re: Slant Fin Boiler Good or Bad?

    [QUOTE=tsac00;38916]ok , first of all SlantFin is a good Amarican , US built company and back their products.
    Now for the problem. I installed a bobcat 120 in june 08. It was constantly failing with code A01
    I had to reset it. SlantFin replaced the electronics and then I had what can be described as "delayed Ignition" A loud band between ignition failures. The new control board did not require a reset because it was now auto reset. SlantFin then sent an engineer to my house. They recommended the exhaust be redesigned from a combo to individual plastic pipes.. two days later more delayed ignite issues.

    Today the first day of heating, the fan that increases the gas flame temp started to sound like a fan rubbing on something with a clicking noise. So now I will be calling Monday to inform them of the new issue.
    Now donít misunderstand me. They have been very responsive. I have friends who have purchased WeilMclane, Burnam and others . All feel they made a mistake and even though I have some issues they are considering replacing with a SLantFin. The Bobcat is a very nice boiler and Iím sure will be a real money saver when I get it corrected. I have a affinity for problems. I asked for other slantfin customers and received a list from a distributor( SlantFin did not know about this ) and could not find anyone else who had issues so I guess I would recommend buying the Bobcat

    I have the same size house as you.

    2011 edit updateThis is a follow-up to the Bobcat I installed in 2008. I initially had some issues but they apparently all related to the igniter design. Slantfin engineers replaced the original design with one that allows the spark to as other suggested ďnot jump aroundĒ it has a much shorter length. Anyway the problems are non existent now and the boiler runs perfect ( hope I donít jinx it). The Oil boiler I had used about 1000 gallons of oil a year. Ran during the summer for hot water. The cost was about $3100 in 2008. The Bobcat cost about $7500 to install complete with all new . The cost to run the Bobcat for hot water runs about $35 for a family of 4 a month. Heating runs about $180 during the winter keeping the thermostat at 70 during the day and 66 at night. So all in all I would say it was a good investment.

    Could you please let me know if a Slant-Fin Bobcat is a good choice for a gas boiler? Does anyone know if there is a bobcat that is available for a 100,000 btu. I was interested originally in the Weil McLain CGI-4 but so many bad reviews on Weil McLain. Confused...do not know which way to go....please help...thanks...iannilin

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