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  1. Since lining up those holes is so difficult, I...

    Since lining up those holes is so difficult, I wish they had screwed in on the studs. Also, the sheet metal is sort hanging which made my job even harder. Whoever did the work definitely didn’t nail...
  2. How about the studs right next to it?

    How about the studs right next to it?
  3. Must the return grill screwed on to the duct work sheet metal?

    I took off my return grill to clean this weekend and had a hell of time putting them back on. Since the studs are right there next to it, why must the return grill screwed on to the sheet metal of...
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    Thanks, Bill.

    I went to Wal-Mart just before 11pm their closing time and bought a few portable heaters. Actually, the temp in my place where not portably heated never gone below 62 degrees whenever I checked of...
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    Airmechanical,

    I guess you didn’t the time I posted my victory post. 5:22am! I won’t pay anyone that kind of money to come out 5am!
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    Victory for DIYers!!! And, thank you all!!!

    Victory for DIYers!!!

    No guts, no glory! I opened the panel of the main unit and saw a small black button. I gave it a gentle push. My heat pump is alive!

    Thank you all!!!
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    Victory for DIYers!!!

    Victory for DIYers!!!

    No guts, no glory! I opened the panel of the main unit and saw a small black button. I gave it a gentle push. My heat pump is alive!

    Thank you all!!!
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    Some comedians make money out of laughing at...

    Some comedians make money out of laughing at DIYers
    .
  9. Replies
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    Heatcooltech, Not at all. Thank you for your...

    Heatcooltech, Not at all. Thank you for your replies. We are men, right? In terms of insensitive to my feelings, my daughter is the champion.
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    I guess we all have done DIY well a few times and...

    I guess we all have done DIY well a few times and skewed up a few times. It may all break even, I hope. A little sweetness of success and bitterness of failure are the rewards.

    Thank you all, very...
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    I have a heat pump with AUX heat. The thermostat...

    I have a heat pump with AUX heat. The thermostat I bought is 8050C made by ritetemp.

    Where can I reach the fuse? I thought those control wires are low voltage, didn’t take them seriously and will...
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    Yes, I only turned power off when I saw the...

    Yes, I only turned power off when I saw the mercury turned heat pump back on. What part do I need?
  13. Replies
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    I know that the thermostat is just a switch. I...

    I know that the thermostat is just a switch. I guess the control unit (whatever it is called) is busted. I touched a few different wire combinations and nothing happened. Those wires don’t do...
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    Heat pump in Maryland died! Help!!!

    Heat pump in Maryland died! Help!!!

    I got a new RITETEMP digital programmable thermostat this afternoon from home depot and was going to put it on tomorrow. Then, I took a look at the instruction...
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    where is Manual D in http://www.acca.org?

    dash,

    i clicked around http://www.acca.org and didn't find it.
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    Generally speaking, heat exchangers present heat...

    Generally speaking, heat exchangers present heat for the air flow (heat movers) to carry away and will burn itself out if too much heat left around as the result of insufficient number of movers...
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    Thanks. I agree with you on the leakage. I...

    Thanks.

    I agree with you on the leakage. I hope the leakage is a small percentage of the total air intake.

    Your impression may very well be the fact. That’s why I plan to sell it to the luxury...
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    Very true! The purpose of the air filters at...

    Very true!

    The purpose of the air filters at the return grill is to keep return duct clean, or at least help keeping the return duct clean a little so that duct cleaning isn’t or less needed.
    ...
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    uktra, Just in case you’ve missed my earlier...

    uktra,

    Just in case you’ve missed my earlier posts. The “thin” filters at the return grill are an addition to the filter at the main unit, not a replacement of it.
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    Very true! Filter grill filters HAVE to have...

    Very true!

    Filter grill filters HAVE to have air tight returns to be 100% effective.

    Filters at the return grills certainly do nothing to the leakage.

    Whatever the percentage of the leakage...
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    Just the kinds I can buy from Home Depot and do a...

    Just the kinds I can buy from Home Depot and do a little craft work to make something fit, since that is all we've got. Maybe, ideally, different kind of filter is needed for the different locations...
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    Dash, I think you misunderstood my post. I...

    Dash,

    I think you misunderstood my post.

    I was talking about easy installation when I wrote “a few screws”. The return grill WITH filter tilt out you mentioned doesn’t just sit there, right? It...
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    Dash, I haven’t seen any “1" or greater return...

    Dash,

    I haven’t seen any “1" or greater return grille tilt out, no screws involved”. Would you please give me a place to look it up?

    I just find out Hope Depot in my area (3 of them) no longer...
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    Yes, the ones with 1’’ filter are common. I’ve...

    Yes, the ones with 1’’ filter are common. I’ve seen it in Home Depot and Lowe’s. It is usually used when there is only one return opening in the system.

    In my very limited survey, I haven’t seen...
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    The moment I found this site I knew it is a good...

    The moment I found this site I knew it is a good one with good people. I’ve been telling you guys the old story. The house is sold. I am divorced now. As a consequence, I have time. I am living in a...
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    I’m glad I am not the only one placing a filter...

    I’m glad I am not the only one placing a filter behind return grill. Everything is a trade off. The negatives I’ve collected are: 1, filter introduces pressure drop, there is always leakage in a duct...
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    Thanks dash. I guess you are thinking one...

    Thanks dash.

    I guess you are thinking one return opening for the whole system when you wrote "two filters is usually a very bad idea".

    My home has 5 return grills of 3 different sizes. I hope a...
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    My home has 5 return grills of 3 different sizes....

    My home has 5 return grills of 3 different sizes. I hope a thin filter at the return isn't too restrictive, since the air flow at each return is a fraction of the whole. There maybe enough margin in...
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    Just like duct dusting cleaning is mostly...

    Just like duct dusting cleaning is mostly psychological; it is just a thing I do to make myself feel better. I do keep the filter at the unit. The filter I crafted is an addition, not to replace the...
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    drk, Very true. Not much return. cxagent, I am...

    drk, Very true. Not much return.

    cxagent, I am sure you are right about duct leaking. Just like duct dusting is mostly psychological, it is just a thing I do to make myself feel better. I do keep...
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    trane, good point.

    My house has five returns, 2 upstairs and 3 down. I guess, generally, more returns are better than just 1.
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    All my return grills are not filter grill. The...

    All my return grills are not filter grill. The only filter is at the unit. It seems rather difficult to install a filter grill as replacement.
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    I live in MD. Which area is your?

    Thanks.
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    I posted this at Residential HVAC. This group...

    I posted this at Residential HVAC. This group seems different. I’d like to read your thoughts on my little practice.

    My first house was a new construction. I started modifying the regular air...
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    This is a great site. I am glad finding you guys....

    This is a great site. I am glad finding you guys.

    My first house was a new construction. I started modifying the regular air filter and placing in behind the return grille to keep the duct work...
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