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  1. Replies
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    now I really appreciate teddybear's and others...

    now I really appreciate teddybear's and others recommendation and knowledge on dehumidification.

    I never knew what a dehumidifier does to a home until now and I always thought 60% or lower no mold...
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    which thermometer is accurate?

    603571

    I have 3 different readings from 3 different devices, in same location, 1st floor center of the house, family room

    the top one is portable accurate from walmart, AA battery operated,...
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    here is another snap shot at 4pm EDT, ac still...

    here is another snap shot
    at 4pm EDT,
    ac still running as I want to try longer run, AC runtime 1 hour 20 minutes
    supply 54.86F, 79.8%
    return 76.46F 48.3%

    1st floor at thermostat 77F 37%...
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    another thing I noticed is the insulated copper...

    another thing I noticed is the insulated copper about 21.2C (70F) and the smaller copper is 34C (93.2F)

    in other times, when outside is not that hot, the insulated copper and the small copper is...
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    here is another minor update yesterday and...

    here is another minor update

    yesterday and today, excessive heat warning in effect, where outdoor full sunny during daytime 93F 70% , and felt like over 103F, and night time at mid 70 to 80F.

    I...
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    I ran this little portable dehumidifier...

    I ran this little portable dehumidifier continuously 24x7 on Friday night, Saturday and till Sunday afternoon, and on Sunday morning I also set my blower fan to on continuous, temperature on 1st...
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    here is a little update last week I only ran the...

    here is a little update
    last week I only ran the portable dehumidifier one overnight, and relative humidity for basement was around 74F 55% and 1st floor thermostat was around 79F 53%for the whole...
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    this particular danby premiere 60 pint I bought...

    this particular danby premiere 60 pint I bought from Costco does have 3 drain methods, built in pump system can pump water up to 16.4 ft in height, or by gravity drain to nearest floor drain, or by...
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    I returned the Costco delonghi AN125HPEKC...

    I returned the Costco delonghi AN125HPEKC portable heat pump yesterday, love the Costco return policy and bought a energy star compliant Danby Premiere 60 pint portable dehumidifier DDR60A3GP, rated...
  10. thanks Udarrell for input if the water drip...

    thanks Udarrell for input

    if the water drip rate is 16.9 floor ounce in 4 minutes, wouldn't that be 4.225 oz per minute?

    when I emptied the bucket, my approximation was 1 gallon of water, about...
  11. thanks teddy bear for your helpful input. ...

    thanks teddy bear for your helpful input.

    today I washed my concrete basement floor, and puzzled to see why see no increase in humidity. it completely dried up in about 2 hours, and I was...
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    hmm, I think I see what is happening now since...

    hmm, I think I see what is happening now
    since my thermostat set the blower fan on 9 minutes every house, effectively, the entire house air is being recirculated when the blower fan only (no ac)...
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    performance on portable dehumidier

    I bought a portable delonghi air conditioner with one exhaust hose window kit from Costco about 2 months ago, model AN125HPEKC when it was $50 off, size for 450 sq ft room, and yesterday I finally...
  14. i am confused on the temperature reading we are...

    i am confused on the temperature reading
    we are having a mild heat wave where everyday temperature is 90F +, and today, I was away, about 8:30pm tonight, sunset, outdoor about 82F, 75%, I ran the ac...
  15. thanks for your quick reply udarrell, the...

    thanks for your quick reply udarrell,
    the installer removed all indoor and outdoor equipment, include copper pipes, and replaced with brand new matching 4 ton heat pump, indoor, outdoor equipment...
  16. originally I have a 3.5 ton 10 seer ac when the...

    originally I have a 3.5 ton 10 seer ac when the house was built in 2005, and 2 years ago I oversized the equipment to this 13 seer 4 ton heat pump mainly for winter heating due to high price of...
  17. gibson ac supply temperature and humidity question

    I have a 4 ton 13 seer Gibson heat pump, I placed 2 thermistors, one after the air filter/before the blower cage fan to measure return air temp and humidity, one about 5 " directly above the peak of...
  18. the gibson could not maintain my home temperature...

    the gibson could not maintain my home temperature this morning, after reviewing the log, supply temperature were at 78F and return were 67F,(I put 2 DHT22 thermistors with raspberry Pi to log...
  19. How cold of outdoor temperature can heat pump run

    I was told today is the coldest day of this winter, and the outdoor temperature has never made it into teens degree F.

    will my 13 seer Gibson 4 ton still work when outdoor is in negative F?

    ...
  20. runtime

    runtime
  21. thank you both for the advices. my cooling is...

    thank you both for the advices.

    my cooling is over-sized, but I enjoy the cold blast during hot summer when i set thermostat to 76F.
    my peco bill shows not high usage during summer cooling.
    ...
  22. maintenance concern on propane furnace

    my home was built with Gibson 80k btu LP furnace and Gibson 3.5 Ton AC sits on top, near 10 years ago, 2400 sq ft, 2 story colonial home with 1200 walk out unfinished basement.
    and about 2 years...
  23. ok as the room temperature approach 70F, the...

    ok
    as the room temperature approach 70F, the liquid line temperature is 35.3C, hot gas pipe is 74C, outdoor temperature about 53 to 55F.
    supply vent 95F

    the problem I used to have before was...
  24. can lineset temperature tell the health of heat pump in heating mode?

    I bought two $3.66 Chinese 12v dc thermostats from ebay that has temperature probe, and I wrapped the each probe to liquid line and hot gas line in soda can sheet, and use electric tape to wrap it in...
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    here is an update, this heat pump has been...

    here is an update,
    this heat pump has been running for over a year now and no problem with running heat mode in warm weather.
    I think the root cause of high pressure switch tripping was due to...
  26. the system is a Gibson 4 ton, Outdoor:...

    the system is a Gibson 4 ton, Outdoor: JT4BD-048K, Indoor: C7BAM048C-C, located in basement, one system serve all 3 floors, 3600 sq ft. basement is unfinished.
    thermostat is in the middle of 1st...
  27. based on the thermometers I have on each floor, ...

    based on the thermometers I have on each floor,

    basement low 71F, high 74.5F
    1st floor low 74F, high 74F, RH range 40% to 50%
    2nd floor 75F to 77F

    temperature seems to be at lowest at the...
  28. two story colonial with basement, 1200 sq per...

    two story colonial with basement, 1200 sq per floor. 19ft high foyer, 4 bedroom with ceiling fan rough in, 2 full bath with recess light and exhaust fans on 2nd floor,
    attic access is in master...
  29. relation between attic temperature and AC

    looking at my remote thermometer in that I placed in attic, it registered peaked at 114F and low 69F in attic yesterday,
    weather.com observed yesterday (Monday 7/7/2014) outdoor 92F and low 73F.
    ...
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    oh, and recent year, I've seen more cracks on...

    oh, and recent year, I've seen more cracks on drywall between wall joints, one of my bedroom door can not closed, probably the foundation has finally settled.
  31. Replies
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    the unit was installed on jan 2013. vibration,...

    the unit was installed on jan 2013.
    vibration, yes, installer gave me the 4 rubber pads
    cracking sound, no,
    heard the similar popping sound when someone use the hot water 2nd floor bathroom, ac...
  32. Replies
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    435

    I am pretty sure it is the outdoor unit itself,...

    I am pretty sure it is the outdoor unit itself, last winter I've even have to put some flexible silicone around all the outer shell/casing to prevent loud metal sheet rattling noise.

    I also heard...
  33. Replies
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    anti-vibration rubber

    my gibson 13seer 4 ton heat pump is directly attached to the outside of basement wall with metal bracket.
    during this past winter, when I sat on the chair, indoor, and next to the wall where this...
  34. 498371 498361 here is some data from my unit I...

    498371
    498361
    here is some data from my unit
    I raised the indoor target temperature to 79F and AC turn on at 81F.

    so far it ran twice today, cycle 1 around 4:16pm and cycle 2 around 7:30pm...
  35. [QUOTE=udarrell;18542871] the builder...

    the builder originally installed a 10 seer 3.5 ton AC only, and last year, I replaced it with a 13 seer 4 ton heat pump due to raising cost of propane.
    I wanted more heating than cooling from this...
  36. this house was built 9 years ago, exterior walls...

    this house was built 9 years ago, exterior walls are R19, tyvek wrapped on 1st and 2nd floor, vinyl sidings. basement is unfinished, has precast superior wall with r5 Styrofoam, front half...
  37. the RH reading is from the thermostat, which...

    the RH reading is from the thermostat, which installed center of 1st floor.

    the temperature 50F reading at the mouth (inside) of supply register vent while AC is running, and I don't have RH...
  38. I have no idea if it removes any humidity. the...

    I have no idea if it removes any humidity.
    the thermostat registered the indoor begin RH at 55%, 76F, and then at the end of the 30 minutes cycle, it went down to RH 48% 74F, and about 2 or 3 hours...
  39. supply temperature and return temperature question

    my unit is Gibson 4 ton 13 seer heat pump in stalled in jan 2013, for a 2400 sq ft colonial 2 story, from what I heard, it is oversized in AC, yesterday, sunny all day in 80s F, southeastern PA, i...
  40. Replies
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    ok, thank you.

    ok, thank you.
  41. Replies
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    Media filter question

    I am looking for opinion/recommendation on filter, furnace is 80k btu, heat pump is 4 ton, current filter is 16x25x1, from what I understand, it is undersized for the 1600 cfm heat pump, and 20x24 is...
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    I am glad the icing vinyl problem was long gone a...

    I am glad the icing vinyl problem was long gone a few days after I unplugged all my humidifiers.
    I did open the cover on exhaust fans yesterday, and use aluminum tape to seal around the housing.
    ...
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    i know what i did wrong, :beat:i went to attic...

    i know what i did wrong, :beat:i went to attic for about 30 minutes to 45 minutes with my attic access pannel wide open the whole time when indoor was 73F and outdoor was in low teens.
    now i...
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    this 4ton Gibson 13 seer heat pump (no heating...

    this 4ton Gibson 13 seer heat pump (no heating strip) actually not bad, last week it was kept my house at 69F to 71F down to single digit F, it defrosted every 6 hours, and lower the indoor by 1F, ...
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    Good news, power is now restored, house 53F from...

    Good news, power is now restored, house 53F from my wifi thermostat, should I use propane furnace or heat pump to bring the temperature back up.
    I installed two individual wifi thermostats for each...
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    Not home now, but I am thinking tomorrow morning...

    Not home now, but I am thinking tomorrow morning if power has not restored, shut off water main in basement, then open all faucets and drain through the lowest walk out basement hose bib, In case...
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    Southern chester county, pa No one home now,...

    Southern chester county, pa
    No one home now, went to in law home with heat
    So the only thing i worry is burst pipe and flood the house, my two 2nd floor bathrooms has PVC run along insulated outer...
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    I don't have generator, with more than 1/2...

    I don't have generator, with more than 1/2 million home without power at once, i did not even try to go buy one.

    Looks like safest is pay the water.
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    Power outage

    This morning 7:15am lost power and still in the dark, I am looking for to keep house warm enough to avoid frozen water pipe.
    With a battery operated co detector, is it safe to light up a propane...
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    this morning 7am, I looked at the humidity in...

    this morning 7am, I looked at the humidity in attic again, 12F, 75% to 78%, I looked at my other thermometer at front porch, 12F, 68%, then I looked at my car and there is a thick frost on every...
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