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  1. Replies
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    Thanks Shop, for the timely response. To answer...

    Thanks Shop, for the timely response. To answer your question its mainly temp. split. In heat mode about 12 degrees at 47 outdoors and unfortunately about the same in a/c at 90 outdoors.
    The...
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    Elbows & Linesets

    Hello All, Just curious if 90's in a lineset can affect efficiency. A 2 ton unit at my girls home has 4 elbows in a 35' run on the suction line.
    Had it serviced in the winter ( not the best time...
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    Thank You, Thank You, LK Sir, Today while I was...

    Thank You, Thank You, LK Sir, Today while I was there I turned the heat off, the AH fan on, a therm in the supply read exactly the same as return air at grille. So the return isn't sucking cold attic...
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    Good evening, Took everyones advise & had a tech...

    Good evening, Took everyones advise & had a tech out yesterday. Not the best of days for service ( around 35 degrees ambient ). By the gauges the unit wasn't low, he said if anything it had to much...
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    Thanks Kanga, For your timely response. Monday I...

    Thanks Kanga, For your timely response. Monday I started this endeavor with temps near the same as today (35). The HP wouldn't keep up (aux. would kick in). Today, after sealing the ducts, 36 bags...
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    Kanga, I took an accurate temp at a coil today....

    Kanga, I took an accurate temp at a coil today. Suction line was 106 degrees @ 35 degrees ambient with a 13 degree temp rise. If the online data is correct I should have a 20 degree TR even with a 10...
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    Chris, Yes confident about the strip TR, & yes...

    Chris, Yes confident about the strip TR, & yes fan speed is same strip or HP. Thanks
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    LK & Medic, True airflow is unknown, but I did...

    LK & Medic,
    True airflow is unknown, but I did go to emerg. heat w/10k strips and had a 39 degree TR. With that known info I looked up the online heating data which was 22k btu. @ 47 amb. A lil...
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    Kanga, Thanks for your reply. Didn't have a good...

    Kanga, Thanks for your reply. Didn't have a good therm. for the suction line but I'll get it tomorrow and repost. It was hot very hot all you could do to keep your hand on it.
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    Temp Rise Question

    Good Evening,
    I've spent a couple of days at my daughters trying to lower her elec. bill. Sealing attic ductwork, more insulation etc. I caught the outdoor temp. @ 47 this morning so I checked the...
  11. Thread: THPRE

    by MrDodge
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    This is the Ask Our Pro's forum, and only Pro...

    This is the Ask Our Pro's forum, and only Pro members that have been vetted by the AOPC may post advise, commentary, or ask questions of the OP here. Please apply to the AOPC today, thank you.
    ...
  12. Thread: Aprilaire 600

    by MrDodge
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    Could the winter/summer draft door on unit be in...

    Could the winter/summer draft door on unit be in the
    closed position?
  13. Replies
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    James, Glad to hear you got most of your issues...

    James,
    Glad to hear you got most of your issues resolved. Sounds as
    though you found a good tech to troubleshoot it. (all the
    different areas he brought to your attention.) Good Luck
  14. Replies
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    James, Does your new unit eventually satisfy the...

    James, Does your new unit eventually satisfy the stat? The reason I ask is my unit kicked on about 9 pm Thurs. then shut off Fri. around 11 am. yes 14 hrs. straight. But it did maintain temp.
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    As far as RH I don't really understand it either,...

    As far as RH I don't really understand it either, other than colder air can't
    hold as much moisture as warmer air. Another rule of thumb I've read is if there's condensation on your windows you have...
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    Info I've read about indoor RH Outdoor Temp ...

    Info I've read about indoor RH
    Outdoor Temp Desired RH
    40 & Above 45%
    30 40%
    20 35%
    10 ...
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    James Welcome, there is a vast amount of...

    James Welcome, there is a vast amount of knowledge on this forum I'm sure someone will come up with some ideas. Although I'm only a homeowner interested in HVAC some points I'd like to make are;
    1....
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    ICan, you & Been & a few others have been talking...

    ICan, you & Been & a few others have been talking waaayy over my head for a few days now. If you don't mind me asking, how much do you think my utility co. charged me per hr. to heat my home at that...
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    Bud, To answer your question I'm not sure it is...

    Bud, To answer your question I'm not sure it is cheaper to run that low. I was just amazed the unit could keep up being that cold outside. I realize I haven't factored in the strip usage during timed...
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    To be fair last night was an anomaly at my house....

    To be fair last night was an anomaly at my house. Although bitter cold there was no wind at all, nothing, dead calm. When the wind blows it changes everything here I get it from all sides.
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    Thanks Been, for chiming in. I thought I was...

    Thanks Been, for chiming in. I thought I was doing the math correctly last night and were surprised to see the contradiction this morning. And you gotta admit $.16 an hr. to stay warm is pretty...
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    ICanHas, You are correct my heating data lists...

    ICanHas, You are correct my heating data lists 1.9kw ( i added per hr.) You're spot on about the COP data. I pay about $.085 per kwh for elec. which I always thought equated to 1.9kw x $.085 = $.16...
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    A Heat Pump Amazes Me!

    A bit of info I think worth sharing. Too cold to work tomorrow, nothing on tv, its 9 degrees outside & winds are calm. I've watched my thermostat for 3 hours and it has maintained setpoint with no...
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    Good Evening, If I were you I would seal all...

    Good Evening, If I were you I would seal all leaky areas because just as much heated air is leaving your home as cold air is coming in. Sealing your home would save you money & you'd be a lot more...
  25. DC, I'll start off with (I'm in no way a Pro) but...

    DC, I'll start off with (I'm in no way a Pro) but I have been in your shoes.
    I to have had indoor RH problems in cold weather, and based on the wisdom
    of the pros on this board the largest single...
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    David, no the summer is quite comfortable...

    David, no the summer is quite comfortable indoors, w/2.5 ton & exposed to full sun I have some long runtimes. I guess I've been trying to attribute infiltration as a wind chill. Say a homes btu loss...
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    Thanx BT & Shop for your helpful insight. Last...

    Thanx BT & Shop for your helpful insight. Last fall I did seal all the boots & was really surprised how much air could actually seep around them. The floor cuts were straight & sized for the boot,...
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    No condensation at all, but the highest RH I've...

    No condensation at all, but the highest RH I've seen this season is 38% & that was last weekend on a couple of 50 degree days
  29. Replies
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    Oh, I may not be as close on the sealing part as...

    Oh, I may not be as close on the sealing part as I thought, Thats several CF in a days time. But we've done all we can today. I've gotta log off or I'm gonna be late in the morning. Thank You Sir for...
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    I didn't know that about the RH. I always thought...

    I didn't know that about the RH. I always thought the 40-50% was more desirable. With our average temps in the mid twenties & higher my home stays about 28% RH or more without the lil floor model on.
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    Right, I'm assuming being within .10 of needing...

    Right, I'm assuming being within .10 of needing mech. ventilation is pretty close to the threshold, & leaving the HVAC open for the test was that the right thing to do?
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    Thanx 4 the tips Stvc, the audit was a great...

    Thanx 4 the tips Stvc, the audit was a great investment I think, I got new aerators, showerheads, & six CFL bulbs. My $25 charge couldn't have bought those items in stores. Since I'm close to the...
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    Yes, I was here the entire audit. I probably...

    Yes, I was here the entire audit. I probably asked 2 many questions the whole time, I just find it all very interesting with all the variables to account for. When the techs told me about larger...
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    Thanx Stvc 4 ur time, My home is 1300 sq. ft. x 8...

    Thanx Stvc 4 ur time, My home is 1300 sq. ft. x 8 ft. ceiling plus an additional 1200 cubic ft. for vaulted area. Its a 1 1/2 story vinyl home 900 down & 400 up.
    Its totally exposed except 4 an...
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    Thanx Stvc u caught a typo of mine in the...

    Thanx Stvc u caught a typo of mine in the original heading. I changed it to 50/1496cfm thats whats in the pre & post test areas of the BD Test Form. And your right about using those readings to...
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    On a side note before the techs left I asked...

    On a side note before the techs left I asked about the best & worst performers they've tested. The best being 800cfm to reach 50 pascals on a much smaller home & the worst being not able to reach 50...
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    Thanx Everyone 4 Ur timely response. The way the...

    Thanx Everyone 4 Ur timely response. The way the BD test was explained to me is that a pascal is a standard unit of pressure measurement. The BD fan is ramped up until the home has a negative...
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    Blower Door 50/1496cfm Means ?

    Hi All,
    Just completed a utility sponsored BD test yesterday & 4 the life of me I can't find the right data or formula to put those #'s into terms that make sense to me other than it took 1450...
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    Does anyone know Mr. Slim?

    Hello All,
    I took a chance & installed a used (motel tear-out) Mr. Slim mini split in my garage & have been pleasantly surprised. The one question I forgot to ask the HVAC guy when he vacuumed &...
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    Big Thank You to The Good Guys

    Rob & Hearthman, Thank you for very informative & helpful posts. I'll even apologize to JTB for the defensive post I made. It just felt like I was getting bashed instead of helped on my end when I...
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    jtp DUH?

    Sir, had you read my post with any intellect at all you would have deduced I'm a trim carpenter by trade & know nothing about logs. I generated this post out of general concerns for a family I don't...
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    One For The LP Guys

    We just finished two additions back to back for different Home Owners, both installed a fireplace with ventless propane logs for supplemental heat & man what difference between the two. So much I...
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    I'm Losing as much as my Units Makin

    I've taken a day to monitor the eff. of my 1 yr. old 2.5 Ton 13 Seer Unit. My home is 1450 sq. ft. & OD temps have been a steady 15f for the last 20 hrs with a 10 mph wind & no sun. 10k Aux. has not...
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    $.35 Per Hour ?

    Hello Everyone,
    I have a 5,000 watt, 17,065 btu garage heater that does surprisingly well. Is it safe to say this is a 5k heater? If so, if my electrical rates are $.07 per kilowatt hr. it only...
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    Updated Readings

    Thanx Everyone,
    I've taken your advice & am running on 10k strips (turned off 30 amp Br.) & have opened all registers ( Mrs. had 2 bdrms. closed ) from original post. I have a 34-35 deg. temp rise...
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    Guys Thanx 4 Your Replies, Pas, I'm not sure...

    Guys Thanx 4 Your Replies,
    Pas,
    I'm not sure it is wrong, I've probably just been doin to much reading & it isn't even AC weather yet. By other posts Ive read 1350 cfm may be to much flow for 2.5...
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    As Happy As I Can Be....(Almost)

    Hey Guys,
    I happened by this site about 2 wks. after a new install in my home. After reading this site for the past 2 months I feel my guy did me right. It appears properly sized for 1250 sq. ft....
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