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  1. Replies
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    http://www.chimicles.com/thermostatic-expansion-va...

    http://www.chimicles.com/thermostatic-expansion-valve-txv-tev-tx-and-copeland-scroll-defect-lawsuit
  2. Thread: TXV problems

    by newlyn
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    TXV problems

    I have heard about an industry-wide problem with thermal expansion valves failing, supposedly due to a chemical used in scroll compressors of recent manufacture. I am wondering if this is a defect...
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    Okay, pecmsg, so how would you do it?

    Okay, pecmsg, so how would you do it?
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    Unfortunately that would not work well for me...

    Unfortunately that would not work well for me because the constant circulation keeps the temp even in the back of the house. When we do not have constant circulation, the back bedrooms get a bit too...
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    With respect to the dual fuel thermostat, I think...

    With respect to the dual fuel thermostat, I think what my installer said was that if he connects the circulator to the thermostat it will turn the circulator on and off on demand from the thermostat,...
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    Don't worry, not doing it myself. But,...

    Don't worry, not doing it myself. But, surprisingly, even Buderus doesn't seem to have a good answer to this, so figured I would get some pro opinions.

    I have just one zone and convectors.
    ...
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    So, it seems there is no great way to...

    So, it seems there is no great way to automatically coordinate the Buderus with a heat pump. Apparently I cannot get a thermostat that switches from heat pump to oil at a given temperature absent...
  8. I can tell there were some strong opinions on...

    I can tell there were some strong opinions on this one. :whistle:

    Decided to go with the Carrier, primarily because they advertise a slightly quieter unit.
  9. The quote says 10 years on both, so if nothing...

    The quote says 10 years on both, so if nothing else I can hold the installer to it.
  10. 10 year for both. Basically comes down to...

    10 year for both.

    Basically comes down to whether one is better, or quieter, than the other.
  11. Heat Pump Choice - Lennox XP-16-048 or Carrier 25HCB648

    Help me choose - Lennox XP-16-048 or Carrier 25HCB648? Same installer, Unico variable speed air handler, price is virtually the same. Installer does more Carrier than Lennox, but does both. ...
  12. Replies
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    Coordinating heat pump with Buderus 2107

    I am installing a high velocity AC system in my house this fall. I have oil heat (Buderus w/ logamatic, room sensor, and outdoor reset) and I am thinking about going with a heat pump so that I can...
  13. The conventional estimates I received would only...

    The conventional estimates I received would only utilize one return, at the top of the stairs on the second floor, same as the HV system. That is why I am concerned about performance. I don't think...
  14. I think the HV guys would say that operating...

    I think the HV guys would say that operating costs would be about the same, since the unit doesn't have to work as hard to reach an even temp, but not sure I believe it. I would really be interested...
  15. Operating cost of High velocity vs conventional ac

    Planning to install a/c in my stone 1940's house. Have been using window units for a few years, which work well and cost me next to nothing in operating costs, but for a lot of reasons we would...
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    so, just to clarify what I did to get constant...

    so, just to clarify what I did to get constant circulation, the Buderus system always runs on constant circulation when in "day" mode. The only time it does not run on constant circulation is in...
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    Steve - I use constant circulation because my...

    Steve - I use constant circulation because my daughter's room over the garage gets cold, and leaving it on constant circulation helps keep the temp even throughout the house. That is something I...
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    Buderus customer support, or lack thereof

    I bought a Buderus oil boiler last year with logamatic control and room sensor. It has taken some work to get it dialed-in just right for my home. For example, I had to set it to constant...
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    The odor is right near the boiler (not the tank)....

    The odor is right near the boiler (not the tank). No odor when it is not running. It does seem to go away after it has been running for a few minutes.
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    Critique these combustion test results

    Hi all,

    This is our second year with our Buderus 115/4 section boiler, with Beckett NX burner. It has taken a while to get the programming/settings right, but I finaly feel like I am getting...
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    Buderus settings help

    Got a Buderus 115 with logamatic control, room sensor, and outdoor reset a few months ago. I have noticed recently that the actual indoor temp is a fair amount higher that the setting on the room...
  22. Gravity, I don't know what any of that means...

    Gravity, I don't know what any of that means ("journeyman techs, member of ACCA, combustion certified"), but that is the kind of thing I am looking for. Thanks.
  23. Look, I don't need a new boiler. I am just...

    Look, I don't need a new boiler. I am just looking for a new oil company. I don't need or necessarily want the cheapest, it is just that mine is consistently $.30 per gallon more than the...
  24. no gas on my street. would cost $16,000 to...

    no gas on my street. would cost $16,000 to extend the gas main.
  25. How to find a good heating oil company...(S.E.Pa.)

    I am shopping aorund for a new heating oil company, as my old one is getting to be just too expensive, even though I like them a lot. Other than searching for reviews of various companies online,...
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    Ok, here's the info from the printed ticket. Let...

    Ok, here's the info from the printed ticket. Let me know what you think.

    T stack 363.7
    Co2. *11.35
    Eff 86.5
    Ex air 36.5
    Oxygen 5.8
    Co. 15 ppm
    Co airfr 21 ppm
    Inh2o draft .0044
  27. Replies
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    Sure, will do it later tonight. Keep in mind,...

    Sure, will do it later tonight. Keep in mind, these are from after he made adjustments.
  28. Replies
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    Thanks, guys. I think the "not enough air"...

    Thanks, guys. I think the "not enough air" comment was probably dead on, as the guy who came out said I definitely needed a regulator.

    I do have a copy of the analyzer results.
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    You may be right about the set up -- they...

    You may be right about the set up -- they apparently did not do any testing at the time they turned it on (that's the think with the sensor they stick in the boiler and chimney, right?). I had them...
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    p.s. - the sludge was very "oily" feeling.

    p.s. - the sludge was very "oily" feeling.
  31. Replies
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    Black Sludge Coming from chimney

    As many of you know, I had a Buderus oil boiler installed a couple weeks ago. Yesterday, I noticed a lot of blackish-green, oozy sludge dripping from the smoke pipe at the joint where it takes a...
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    R Mannino, according to the manual, in the...

    R Mannino, according to the manual, in the "RMSETBACK" mode, which only works with the room sensor installed, the circulator shuts off during night mode unless the room temp drops below the set temp,...
  33. Replies
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    OK, sounds like primary/secondary is not a big...

    OK, sounds like primary/secondary is not a big concern with the Buderus, and probably not something I can make them change now, at least not without paying for it. (Does Buderus say anything about...
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    Ok, so I guess I don't really understand what...

    Ok, so I guess I don't really understand what primary secondary piping is. Can someone give me a simple explanation? How would that be different than what I have?

    As for the circulator running,...
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    if i did this right, these should be pics of my...

    if i did this right, these should be pics of my new installation.

    318481

    318491

    318501
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    Yeah, I think that is exactly what happens -- it...

    Yeah, I think that is exactly what happens -- it is getting rid of excess heat into the house, which is fine when it is cold out, but not so great when warmer. It may be mostly a matter of getting...
  37. Replies
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    The WWSD is set correctly but the outside temp...

    The WWSD is set correctly but the outside temp was below the WWSD temp so it kept going, even though the room temp was way above where the room temp was set.

    If I read the manual correctly,...
  38. Replies
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    kangaroogod, I only have one heating zone. ...

    kangaroogod,

    I only have one heating zone. So, wouldn't I just have DHW and a primary loop? what would the secondary loop be for?

    It does appear that the primary pump shuts down when the...
  39. Replies
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    Don't have a diagram but basically there is a...

    Don't have a diagram but basically there is a single pipe from the boiler that splits in two, one for the heat and one for DHW, and each has its own Taco circulator. (obviously there are more...
  40. Replies
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    Buderus - constant circulation?

    Just got my new Buderus G115 installed last week, with logamaitc, outdoor reset, and room sensor. We have a single zone and DHW.

    I am curious whether the single zone circulator pump is supposed...
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    No, I did not call Steve because I did not see...

    No, I did not call Steve because I did not see his company listed on the Buderus website as an authorized dealer.
  42. Replies
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    Thanks, beenthere, that is helpful. The guy I am...

    Thanks, beenthere, that is helpful. The guy I am planning to use did not do a heat loss yet, but said he would come back and do it if I wanted, so it sounds like I should make him stick to that,...
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    Buderus Indirect - Horizontal or Vertical?

    Trying to decide whether to get a horizontal or vertical indirect. The quotes I have received are for a four section boiler and 40 gal vertical indirect HW, but I would like to conserve space if I...
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    Help Determining Boiler Size!

    So, I have had something like 8 estimates for a new oil boiler at this point. Only one took measurements for a load calc and, although that won him great favor in my mind, it took him nearly two...
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    STEVEusaPA: if you are in my neck of the woods...

    STEVEusaPA: if you are in my neck of the woods and would be interested in talking, that would be great. How can I contact you?
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    One guy told me that he would use a 5 section...

    One guy told me that he would use a 5 section because I have older 2-2.5 inch pipes, and there is a lot of water in the system to heat. Does that make sense?

    BTW, do you have a logamitc control?
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    S.E. Pa. - just outside Philly.

    S.E. Pa. - just outside Philly.
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    should have also said 2400 sq ft.

    should have also said 2400 sq ft.
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    Tell you the truth, I am not sure whether anyone...

    Tell you the truth, I am not sure whether anyone did a heat loss calculation. They at least asked for the square footage of the house. it is a stone house (thick stone walls), built in 1940, older...
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    Buderus G115 v. Burnham MPO-IQ

    So, after hearing lots of helpful advice here I decided to forego the Bryant or Weil Mclain quotes I received and get some estimates for a Buderus oil boiler.

    First guy gave me a quote for a...
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