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  1. Replies
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    383

    Adding return to each room will have absolutely...

    Adding return to each room will have absolutely no effect, the reason its hotter and colder up there is because the thermostat is on the first floor and each floor has its own profile therefore needs...
  2. Replies
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    4,017

    nothing wrong with that setup for the return, you...

    nothing wrong with that setup for the return, you need the supply to run longer up there and less downstairs. zoning, adding returns will make no difference.
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    St louis pipefitters union

    I am a journeyman mechanical pipefitter already, will i have to go through there apprenticeship again? Is there any work? I do Hvac and piping, i can do sheet metal work too. Looking for a better...
  4. Replies
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    1,369

    ditto stick a cheap blue fiberglass filter in...

    ditto stick a cheap blue fiberglass filter in there until another return is installed, filter grilles are fine but you need 2 of them at least and all the duct going back to the air handler needs...
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    4,277

    I would put it all the way up against the house...

    I would put it all the way up against the house and bond it to the house foundation, meaning drill holes in the foundation, drive rebar and wire in so it cant come out and then pour your pad, if you...
  6. Thread: Open return?

    by hivacer
    Replies
    10
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    1,235

    your gonna need a power or steam humidifier on...

    your gonna need a power or steam humidifier on the supply, and as far as the ducts, it seems having ducts would be better, but if this basement is within the conditioned space it should be ok, if not...
  7. Thread: combustion air

    by hivacer
    Replies
    11
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    1,174

    i would use 3/4 armaflex, or 1 1/2" fiberglass...

    i would use 3/4 armaflex, or 1 1/2" fiberglass with pvc fitting covers, either way, i think the fiberglass will be easier and cleaner looking
  8. Replies
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    ditto

    ditto
  9. Replies
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    1,009

    1 cfm per square foot will get you close but if...

    1 cfm per square foot will get you close but if you want it to be right gotta have the load of each room and know what size duct it takes to get the btus where they gotta go
  10. Replies
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    2,567

    All of your ductwork is undersized for that...

    All of your ductwork is undersized for that furnace the filter included, you will need a bigger trunklines and more registers or itll never work
  11. Replies
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    6,462

    round metal pipe, tape the joints and seams,...

    round metal pipe, tape the joints and seams, slide foil flex over for insulation, mark saddle locations cut and screw over flex into round pipe, flex for branch runs, only way to go everything is...
  12. Replies
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    ptac or pthp

    ptac or pthp
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    568

    it will work as long as its on one of the sides,...

    it will work as long as its on one of the sides, and not the front or back, generally the front is where the pipes come out, the front and back are very restrictive for airflow, the sides will be...
  14. good for you!

    good for you!
  15. Replies
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    1,663

    the mini splits will probably be about double,...

    the mini splits will probably be about double, and if they break you might be waiting on parts for a couple days in iowa, If it were my home I would probably get a water heater like a polaris to heat...
  16. Yea not to uncommon of a situation, ive ripped...

    Yea not to uncommon of a situation, ive ripped out brand new systems in brand new homes myself for this very reason, I would consider geothermal if you have the money there are federal tax rebates...
  17. Replies
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    3,528

    on a sidenote, packaged and rooftop units usually...

    on a sidenote, packaged and rooftop units usually come with a filter rack for 2 2" filters, yet when we install split systems you rarely see 1 filter that is even large enough!
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    3,528

    merv 8 would be a little better but I go by a...

    merv 8 would be a little better but I go by a simple formula on any 1" pleated filter, 2 cfm of air per 1 square inch of filter, so 1 ton of ac needs 400 cfm, so if you have a three ton 1200 cfm you...
  19. Do you have ac? if not maybe you could fish...

    Do you have ac? if not maybe you could fish insulated pex through the ductwork to baseboard radiators and put in a modulating boiler, probably a pricey proposition, would require some...
  20. They may be looking for a balancing report as...

    They may be looking for a balancing report as well if they are requiring dampers, not much use in putting in dampers if the system isnt balanced. This is usually done by a third party and they will...
  21. Replies
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    3,528

    you should really have them install a media air...

    you should really have them install a media air cleaner like an aprilaire 2200 or something similar, those 3m filters are terrible, its like putting a paper bag in front of your blower, seriously...
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    Just curious what the point of checking this is...

    Just curious what the point of checking this is anyway, you cant get a gas furnace with an output much lower than 32000 btus anyway, seems like you would be better off with a 2 stage heat pump with a...
  23. When it comes to navien, noritz and rinnai yes...

    When it comes to navien, noritz and rinnai yes they are both standard, i am not familiar with the other models out there, my personal favorite is rinnai because I have one in my home, and it works...
  24. they modulate the gas flow for thermostatic, and...

    they modulate the gas flow for thermostatic, and the restrict the flow when it cannot keep up, so if your in the shower when the washer comes on you dont get cold water just less water
  25. they all have those features standard, as far as...

    they all have those features standard, as far as gas meters go, in my area they are rated for 250,000 btu normally but can flow 500,000 easy, as can the regulators they install, but I would check...
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