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  1. In my first conversation with a Ruud contractor,...

    In my first conversation with a Ruud contractor, he also mentioned the possibility of venting issues.

    But here's an experiment I did this morning (-6 F outside): At about 6:00 am, the...
  2. To avoid any vagaries, I turned off the...

    To avoid any vagaries, I turned off the intelligent recovery feature of the thermostat. So, at 6:00 am the furnace set point was changed from 65 to 68 (and was kept at 68 thereafter), with the...
  3. See other post for more info on the furnace. My...

    See other post for more info on the furnace. My concern is not the long recovery time; I think the furnace is adequate but with little reserve power. My concern is the dip in temperature as the set...
  4. Thanks! I really think this issue is with the...

    Thanks! I really think this issue is with the thermostat, too. It seems that it has had a history of issues, see http://hvac-talk.com/vbb/showthread.php?t=439932
  5. No one seems to have experience with the...

    No one seems to have experience with the Rheem/Ruud modulating furnace. The Ruud dealers I have talked to are reluctant to do anything after I have described the problem with them.
  6. Thanks for the reply, ampulman! I hope some...

    Thanks for the reply, ampulman! I hope some other Rheem/Ruud Modulating guys will also chime in.

    The current furnace is the UGFD-07EMCK rated at 75,000 BTU/HR input (at 92% efficiency?). It...
  7. More observations...

    Thanks for the replies. I will get back with some more answers soon. First, some more information on this problem.

    This morning was also cold (-12), and the system did it again, i.e., heated the...
  8. Strange behavior modulating furnace w/WR thermostat

    Hello! I received extremely helpful advice form this forum when I had a Ruud modulating furnace in 2006 (the installer had no idea of what he was doing). They installed the just-then-introduced...
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    Jumping in with a question

    Hi! This forum was extremely useful to me when I had my Ruud modulating furnace installed (by a boneheaded tech and company) in 2006. I am recently noticing some issues with the thermostat (Model...
  10. Re: Jeff-4

    Thanks for the information. Mine also does this consistently. I noticed last night that, with a 7 degree setback with the night period set at 10:30 p.m., it jumped down sometime between 9:10 and...
  11. Hello again! I have a Ruud modulating furnace...

    Hello again!

    I have a Ruud modulating furnace with a new, recently installed White-Rodgers thermostat (the modulating version set up for this furnace). I am still getting used to the behavior...
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    I do not want to pose as an HVAC expert, but as...

    I do not want to pose as an HVAC expert, but as an engineer trained in heat transfer, the argument goes like this.

    Whenever an object (like a house) is at a different temperature than the...
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    Will do! Thanks, as usual, for all of the...

    Will do!

    Thanks, as usual, for all of the excellent advice.
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    Thanks for the thoughts. The temperature on the...

    Thanks for the thoughts. The temperature on the day of issue was significantly lower than the prior day. We had a classic Minnesota swing from a stretch of lows in the 30's to a low of 6 that day. ...
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    This is the first fall/winter with this...

    This is the first fall/winter with this thermostat, but it is the modulating version supplied by Ruud. The set-up instructions on it are not that clear, but it is supposed to be fully modulating the...
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    I am again turning to this forum, since it has...

    I am again turning to this forum, since it has proven to be more useful than dealing with my contractor. I am still having some performance issues with my Ruud modulating furnace and White-Rogers...
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    Hey Mr. Loonie (are you really bald?), I think...

    Hey Mr. Loonie (are you really bald?), I think you are a brilliant guy. The techs came by today. This time I insisted that they call me at work to explain what they did. He said that he changed...
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    More information

    This morning I did some more observing. (I have not chnaged anything from my prior post.) It turns out that the furnace is modulating, but only when it has been firing under the high heat "System...
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    I can also check this. Thanks for the advice! ...

    I can also check this. Thanks for the advice! Is there anyway I can directly contact one of those brillinat Rheem/Ruud tech support reps?
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    Thanks, I will try this. You sound like a gifted...

    Thanks, I will try this. You sound like a gifted chef and tech! At this point, I'd almost consider flying you in to help!
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    I do think the furnace is set up correctly. At...

    I do think the furnace is set up correctly. At least it was working with the older modulating thermostate (the ugly one with the litlle gray display). The furnace was installed last February. I am...
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    Yes, this is the new modulating thermostat. Ruud...

    Yes, this is the new modulating thermostat. Ruud is printed on its faceplate. Ther furnace was working correcting with the old thermostat, so I assume all sensors, etc., are fine with the furnace.
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    Hello experts! So my saga continues, I have...

    Hello experts!

    So my saga continues, I have posted questions previously on this furnace to this forum. Addressing my concerns that my home was heating very slowly in the morning the contractor...
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    I do not know. I am happy to ask. What do you...

    I do not know. I am happy to ask. What do you believe it should be set to?

    I think they will be coming out next week to check the furnace settings and (yay!) install the new White-Rodgers...
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    The house did get to the setpoint temperature...

    The house did get to the setpoint temperature last winter, but last winter we did not experience any significant cold spells (I believe it was the 5th warmest on record). In fact, there was never a...
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