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  1. You could install a small gas furnace and a whole...

    You could install a small gas furnace and a whole house dehumidifier for home comfort. Then have a small mini for the cooling. 9000 would likely handle the place fine with the dehumidifier in place.
  2. Before you blow in insulation, have an energy...

    Before you blow in insulation, have an energy conservation consultant seal the attic from the living space. Eliminating the convection draft from the attic will DRAMATICALLY reduce the cooling load...
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    you could have a NG furnace installed without a...

    you could have a NG furnace installed without a chimney, but it does have to have a flue pipe exit the house. 90+%efficiency furnaces use PVC to sidewall vent, so that could be an option.
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    call out a contractor and ask for a manual D duct...

    call out a contractor and ask for a manual D duct design evaluation. I recommend upgrading your insulation... getting your attic space TOTALLY HERMETICALLY SEALED from your living space... that will...
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    with a fiberglass filter, you need 200sqin per...

    with a fiberglass filter, you need 200sqin per ton of cooling at MINIMUM... if you go up to pleated filters, you need 400sqin /ton of cooling... 20x25 is enough for 2.5 tons MINIMUM with a fiberglass...
  6. I can see the heat pumps providing shoulder...

    I can see the heat pumps providing shoulder comfort, and the insulation upgrades improving the baseboard response. It sounds like you have put a lot of thought into the changes. Heat pumps are great...
  7. I doubt you get nothing in the others, likely you...

    I doubt you get nothing in the others, likely you do get some, but with the fan in low speed, the pressure is very low and the two strong vents feel very powerful. Odds are good, those two runs need...
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    No problem. As long as the lines rise above the...

    No problem. As long as the lines rise above the evaporator before dropping to the condenser, it's ok.
  9. I DO NOT recommend reusing the current...

    I DO NOT recommend reusing the current ductwork... There are no fittings, huge gaps that would require a lot of tape and mastic... The main trunk may be reusable but none of the branch ducts... A...
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    I love all the different ways we all say the same...

    I love all the different ways we all say the same thing...:cheers:
  11. yup... typical work from the 80's... not a...

    yup... typical work from the 80's... not a quality install even by those standards... I've seen worse... I recommend ripping ALL the ductwork out, and installing fresh modern insulated and seal it...
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    While, I'm sure the proper thermostat will better...

    While, I'm sure the proper thermostat will better control the geo, the current one SHOULD be energizing the strips. If it's not, it is bad, or the strips are, or it is not configured correctly.
    If...
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    I recommend you have the furnace inspected... The...

    I recommend you have the furnace inspected... The pilot going out could be the symptom of a failed furnace...
  14. Most equipment manuals can be found online.

    Most equipment manuals can be found online.
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    Air handler cabinets are an industry standard...

    Air handler cabinets are an industry standard size due to attic and crawl space access. Often the ductwork plenum needs to be larger than the cabinet opening. 400 CFM per ton of the 4 ton condenser...
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    It does not matter how much insulating you do to...

    It does not matter how much insulating you do to the ducts. The ventless gas greater is pouring water vapor, and carbon dioxide and carbon monoxide into your house. The ducts if left open will ALWAYS...
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    you are more likely undersized by over 200square...

    you are more likely undersized by over 200square inches... return size of the air handler inlet is often significantly smaller than the airflow requirements of the system need.

    two 12" returns...
  18. home Carbon Monoxide detectors do not alert you...

    home Carbon Monoxide detectors do not alert you to levels of CO that are below the level of instant death...

    if you are having headaches and nausea, shut off the furnace, and have a QUALIFIED...
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    a generic cap is incorrect. you don't just fit on...

    a generic cap is incorrect. you don't just fit on a cap like a stovepipe or such would use. Bvent is induced low pressure driven most often, but it is designed as an insulated heat barrier gas...
  20. The filter restriction is only part of the...

    The filter restriction is only part of the picture. If the household ductwork is too restrictive, the filter, dirty or clean will show little change, as the blower is likely running at the maximum...
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    Hard to say without current info. The info he...

    Hard to say without current info.
    The info he provided is kinda vague.
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    This is DIY, and we are not allowed to instruct...

    This is DIY, and we are not allowed to instruct or advise DIY requests.
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    Crazy. Can you post pics of the setup?

    Crazy. Can you post pics of the setup?
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    Um... am I the only one noticing that quote one...

    Um... am I the only one noticing that quote one is TON higher than quote two...
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    Do you have the installation manual for the...

    Do you have the installation manual for the furnace? If not, google the model number and find it and print it out. I've never seen one that did not include specific instructions to keep it above snow...
  26. I'm in the Charlotte area, so similar weather, a...

    I'm in the Charlotte area, so similar weather, a tad warmer it seems, anyway, how many square feet in the house?
    I don't recommend living with the system if it's so grossly oversized that it's...
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    so... you have a condo with occupied units on...

    so... you have a condo with occupied units on either side of you.

    you have 1200 square feet... concrete slab, interior system, with all ducts likely in the heated space...

    only have front and...
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    radiant infloor is PERFECT and a GODSEND to...

    radiant infloor is PERFECT and a GODSEND to kitchen and bath floors. especially if tile is used in the room.

    the room can be left around 62F, and the floor will be toasty warm to walk on, and you...
  29. the problem with the filtrete filters is the...

    the problem with the filtrete filters is the media is too short... that media works great in a 5" or larger thickness filter, but the 1" filters are simply too restrictive. you need to tripple the...
  30. if the heat exchanger is already at temp, the...

    if the heat exchanger is already at temp, the inducer moves air more efficiently, and the flame may prove quicker. once the flame is proven, the timer for the blower sequence begins.
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    the #1 problem with equipment is the installation...

    the #1 problem with equipment is the installation itself.

    often they are sized wrong, installed wrong, and the entire job is in need of correction.

    we can help you weed out contractors, if you...
  32. you don't even need to rip out the sheetrock......

    you don't even need to rip out the sheetrock... hardware box stores sell insulation hoppers... just cut a few 2" holes in the rock, and fill...

    you will want a large unit for a garage that you...
  33. ahh... I remember your thread. I'm fairly...

    ahh...

    I remember your thread.

    I'm fairly certain we all told you to get a qualified tech out that can determine why the limit is tripping...

    but you go ahead and change the parts you think...
  34. yup, even here in NC, we occasionally get a cold...

    yup, even here in NC, we occasionally get a cold snap that will freeze the furnace condensate trap. this wednesday is supposed to be one of those snaps too... I expect my phone to ring off the hook...
  35. well... DIY is defined as performing repairs to...

    well... DIY is defined as performing repairs to your equipment.

    requesting assistance from us is pointless, as we are not allowed to help with repairs, only advice and opinions on possible issues.
  36. what model furnace? some blower initiation...

    what model furnace?

    some blower initiation calls are timed, some are heat dependent.
  37. lets go at this another way... what is the...

    lets go at this another way...

    what is the furnace doing that leads you to think the board is defective?
  38. are you sure it has had faults? I mean, if the...

    are you sure it has had faults? I mean, if the furnace has not had any faults, there won't be any stored codes...
  39. how is the construction of the home? basement?...

    how is the construction of the home? basement? crawlspace? slab? you will need to perform several upgrades to the house to mitigate infiltration of outside air, and have dedicated fresh air brought...
  40. ... I've not seen any furnace control boards that...

    ... I've not seen any furnace control boards that store the codes.

    they show them, until power is removed, then the are gone until the problem resurfaces.
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    It depends on the service being done, but it's...

    It depends on the service being done, but it's hard to beat the field piece sman series. They come with everything to achieve all the information needed for service.
  42. I don't think I have EVER seen a negative...

    I don't think I have EVER seen a negative pressure inducer with oil ports on it... The old positives, sure, but never a neg...
  43. Ok... A northern state two story with 8TONS of...

    Ok... A northern state two story with 8TONS of cooling on it?

    Your house must be over 7000 square feet. I find it hard to believe a proper load calc was performed.
  44. I am going to strongly recommend you have a...

    I am going to strongly recommend you have a combustion analysis performed with a printed out results sheet. Most techs do not have this quite costly tool, and a lot of them that do, do not know how...
  45. if you ignore the deadly aspects of this, which I...

    if you ignore the deadly aspects of this, which I strongly advise against... The flue he described to you will dump water out all day long.

    Step one, call your local inspection department. Have...
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    I agree. unless the filter rack is sized to...

    I agree.

    unless the filter rack is sized to flow the correct amount of air through the highly restrictive pleated filters, they are bad for your system.

    I'd go one further though, and suggest...
  47. we are guessing at the install... impossible to...

    we are guessing at the install... impossible to say if it's right or not without more information...

    pics of the roof, and the point where the flue connects to the original chimney are critical.
    ...
  48. 10 years, and 3 inducers replaced? wow. to be...

    10 years, and 3 inducers replaced? wow. to be clear... that is the original, plus 3 replacements? total of 4 inducers in 10 years?

    either your furnace is WAAAY undersized, and runs non stop... or...
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    I recommend calling the city/county and...

    I recommend calling the city/county and requesting a code enforcement inspector visit to determine if there is a problem.

    In desert locales, oversized cooling is often needed to get the sensible...
  50. if the burner is performing well at inspection...

    if the burner is performing well at inspection time, then the system is burning as efficiently as possible. if the heat exchanger is dirty, it would take longer for the heat to transfer into the air....
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