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  1. Replies
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    I will corroborate the improvements, but my CFM...

    I will corroborate the improvements, but my CFM 50 rate was already down to 2078CFM due to other work I had done and then dropped down to 1955 CFM now after the Aeroseal process. Biggest improvement...
  2. Unfortunately due to the one week delay in the...

    Unfortunately due to the one week delay in the final test out, the bump out and fireplace spray foam occured inbetween the baseline and final test of the duct sealing, so it is impossible to isolate...
  3. Yes, as the temperature equality now between...

    Yes, as the temperature equality now between floors is the most dramatic effect. Basement is much closer to first floor temp and I only have a 0 to 1 degree difference now between 1st and 2nd floors....
  4. Shophound, I wouldn't mind doing this, but...

    Shophound, I wouldn't mind doing this, but conditions have changed so much, there is no way to compare directly to original data. Here is a list of changed variables:

    1. Ductwork now sealed
    2. ...
  5. As far as retesting the return balance issue, I...

    As far as retesting the return balance issue, I don't think it will be worth it, as too many other variables are changing. I got a local spray foam company to give me a very good price to foam my...
  6. I am literally only 3 days post sealing right...

    I am literally only 3 days post sealing right now, with very little time really spent back in the house to quantify real results. I can say the following with certainty, but need to measure to...
  7. Long term, there is no doubt in the cost...

    Long term, there is no doubt in the cost effectiveness, but short term I was assuming a conservative 6 year payback, since my house is pretty effiecient already. I figured a 15% reduction in A/C and...
  8. I figured that by your user name, I just wanted...

    I figured that by your user name, I just wanted to get that info out there. I am as excited as anyone to actually quantify the actual best estimate of Aeroseal impact through my TED meter...
  9. Obviously that question was for TED, but don't...

    Obviously that question was for TED, but don't think that just because some of the leakage is into the envelope that you don't gain efficiencies from reducing that leakage as well. My basement, and...
  10. 25 Pa

    25 Pa
  11. Here is my Aeroseal results: Return Leakage =...

    Here is my Aeroseal results:

    Return Leakage = 350 CFM. Reduced to 92 CFM (Wall Cavity)
    Supply Leakage = 250 CFM. Reduced to 60 CFM.

    Unfortunately my TED meter is only reading from 1 phase of...
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    True, that always cracks me up. I have seen guys...

    True, that always cracks me up. I have seen guys wearing short sleeves when the temperature hits 45 after a bit of real cold weather.
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    The trees were there all along as the house is...

    The trees were there all along as the house is built in a protected wetlands area and they were only allowed to clear 12' around the house.

    I am 90% sure this is just a normal propane furnace and...
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    Dual Fuel Setpoints?

    I convinced a freind of mine to go to dual fuel system last year with a 14 seer heat pump main unit and switching over the propane furnace to backup mode. We live in MD so, he had the HVAC...
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    Blower door test yesterday showed the baseline...

    Blower door test yesterday showed the baseline leakage at 50 kPa is now down slightly to 2078 cfm from 2300cfm a few years ago due to me sealing up a few of the problem areas. I am hoping the...
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    re

    To be honest with you guys, I think you nailed it. I will review the summaries again when I get a free moment (work has been nuts) and highlight or add to the points. I actually just got on as I...
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    Good summaries guys. My savings is still...

    Good summaries guys. My savings is still continuing. I have been on vacation so I have some really low days, but most days in the high
    40kWh to low 50 KWh range.
  18. Replies
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    You kind of lost me there Brian. The upper floor...

    You kind of lost me there Brian. The upper floor walls are simply built laying flat first ant then lifted into place and nailed into the OSB flooring. The bottom 2x4 simply sits on top of the OSB...
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    Yes, 2300 sq ft. without the basement area...

    Yes, 2300 sq ft. without the basement area counted in and all three levels are the same size, so I guess around 3450 total. Now I am not sure what the 2300 CFM means. The .43 ACH is what I believe...
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    There are not any easy ways to balance the supply...

    There are not any easy ways to balance the supply system further that I can see. I was thinking that sealing the ductwork will hopefully give me a minimum 200 CFM extra as well a eliminating a large...
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    Well guys I am way ahead of you, LOL. To just...

    Well guys I am way ahead of you, LOL. To just clarify my energy audit situation. It is very simple; I always prioritize items looking for the biggest bang for the buck first. I also always do...
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    . Nope.

    . Nope.
  23. Replies
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    Motoguy128, you are right on the money, but you...

    Motoguy128, you are right on the money, but you need to go back and read previous posts in the thread as most of those issues have been discussed in way more detail that I care to comment on. ...
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    Man, quoting my own quote. This is a first. Is...

    Man, quoting my own quote. This is a first. Is there a law against that? :gah:
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    OK, here is the energy used overnight data from...

    OK, here is the energy used overnight data from those two nights from midnight to 7am (i.e. 7 full hours). Don't ask me why the exact usage figure for 7/22 does not exactly equal the usage since...
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    OK, here is the data for 2 days. Hopefully you...

    OK, here is the data for 2 days. Hopefully you guys can zoom in on the pictures to see details. The two days in question were Thursday 7/21 (After) and Friday 7/22 (Before simulation day with cover...
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    See modification above. Be careful here a bit. ...

    See modification above. Be careful here a bit. We can go back and actually calculate the usage by 7am in both instances, however, I was simply asked about energy use overnight before, so I made the...
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    Patience, I am just trying as fast as I can to...

    Patience, I am just trying as fast as I can to read though the ton of posts to catch up. I am going to post the hourly graphs in a few minutes, but just for the before and after test days last week...
  29. Replies
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    This is my basic premise, the why is the hard...

    This is my basic premise, the why is the hard part to nail down. You can definitely feel the balance and energy savings intuitively living in the house now. You just know that to have a livable...
  30. Replies
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    Wow you almost got me lost there, LOL. Not...

    Wow you almost got me lost there, LOL. Not exactly sure where you came up with that, but I am sure it was my lack of clarity in the statement. No, what I was referring to was that the day of the...
  31. Replies
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    Yes, for the recent 1 day test, but no for the...

    Yes, for the recent 1 day test, but no for the previous before data. The fact that the numbers worked out the same could still be valid, but be for slightly different reasons. I will post back,...
  32. Replies
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    It is not that easy for historical data. Minute...

    It is not that easy for historical data. Minute data is the resolution you need to see when the unit is cycling on and off. As far as I can tell, this data is only available for a rolling 48hour...
  33. Replies
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    No recessed lights on second floor, no whole...

    No recessed lights on second floor, no whole house fan, 2 bathroom exhaust fans on second floor. I also have insulated and sealed my 2x2 ceiling cover to access the attic with 4" of custom fit pink...
  34. Replies
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    I have said all along that airflow into the upper...

    I have said all along that airflow into the upper return has at least tripled in my conservative estimate after covering up most of the first floor return. It very well may have increased...
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    Doesn't surprise me having lived in it. The after...

    Doesn't surprise me having lived in it. The after case is much more comfortable. Approximately the upper 2' of my basement is above ground. The 2' kitchen overhang I described is the ceiling joists...
  36. Replies
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    Not sure what you are getting at tedkidd? CO2...

    Not sure what you are getting at tedkidd? CO2 sensor is already in basement. Hot water heater is power vent model with combustion air exhausted outside. Furnace will never be used in this...
  37. Replies
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    The house is appoximarely 2300ft2 for the 1st +...

    The house is appoximarely 2300ft2 for the 1st + 2nd floors. When you add the finished basement area you get approximately 3000ft2.

    My aha moment was simply meant to acknowledge that I now feel...
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    Good point Tips! The house is now 14years old. ...

    Good point Tips! The house is now 14years old.

    I am sure that the ledger board connection to the upper floor joists is poor. They did a real good job using a foam layer, and expandable foam...
  39. Replies
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    Ok guys, I had my audit company send me the...

    Ok guys, I had my audit company send me the report, that I won't misplace this time. Anyway, here are the infiltration #'s

    24,000 Ft3 Volume / 5.7 ACH @50 PA / 0.43 ACH @Normal /2300 CFM flow...
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    Shophound, now we are cooking!!!! Let me add...

    Shophound, now we are cooking!!!! Let me add some additional detail to my basement design that will also help the discussion. The finished portion of my basement is fairly small at around 25'x27...
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    Xavier, no zebra stripes, but definitely ring...

    Xavier, no zebra stripes, but definitely ring around the collar.
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    Very factual, only caveat is that only 5...

    Very factual, only caveat is that only 5 activents installed on first floor to create 2 total zones and open all day, closed after control switches to bedroom at night. 5 vents in the center of the...
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    FYI, I looked for the audit, but couldn't find...

    FYI, I looked for the audit, but couldn't find it. My wife files everything and sometimes there is a disconnect on the handoff. I sent an email to the audit company and they should be able to send...
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    No, I didn't post it yet, because I didn't dig in...

    No, I didn't post it yet, because I didn't dig in the files for the audit results yet. Unfortunately I have way too many responsibilities and hobbies, which have also been demanding my time last...
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    Shophound, I just had a serious Ahha moment...

    Shophound, I just had a serious Ahha moment thinking about the reverse stack effect you were talking about. I do not have any major issue with infiltration in my ceiling from my attic, but I never...
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    Return duct balancing question

    My house has a return downstairs and a return upstairs. When I cover the downstairs return, my upstairs part of the house gets more comfortable. When I leave the downstairs return uncovered, my...
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    LOL, that was a mistype it should have said non...

    LOL, that was a mistype it should have said non pros, ie ME.
  48. Replies
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    re

    That was the original intent of my post was just to share how much success I had skewing my house to a high return system by manually blocking the offending lower floor in series return and then...
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    Re

    Brian, if you read shophound's work of art post above, I believe that is exactly where he is leading to. I can tell you that with the huge open foyer, the phenomena he is describing is very, very...
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    Lynn, I pulled off the cover at around 8:00pm on...

    Lynn, I pulled off the cover at around 8:00pm on the "control" day mostly to make sure the system didn't get a running start to when I started collecting the data at 12:00pm as it could have saved a...
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