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  1. Get a quality variable speed ahu and 2 stage heat...

    Get a quality variable speed ahu and 2 stage heat pump. You'll have nice heat in mild weather when managing floor temps can be a real pain.

    Heat pumps work nicely with furnaces under the same...
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    I've got a number of clients with Greenspeeds....

    I've got a number of clients with Greenspeeds. All fantastic. But you've got some cold weather in Idaho, and really cheap electricity if I'm not mistaken. 3-4 ton Ground source might be a good play....
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    Load cal my fanny. House that size needing more...

    Load cal my fanny. House that size needing more than a 45k furnace is a basket case. Is your house a basket case??

    What was your blower door CFM50 number?
  4. Pretty hard to manage what you cant see. Ecobee,...

    Pretty hard to manage what you cant see. Ecobee, it'll provide a dashboard. Then you can also see how things perform over time via the logging features.
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    Have you had any performance diagnostics done?...

    Have you had any performance diagnostics done? How much of a basket case is the house? What can reasonably be improved?

    If the house is a mess, replacing equipment may lead to disappointment when...
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    Probably better off to get the two stage, as your...

    Probably better off to get the two stage, as your ac is likely oversized and having a lower output will help. Take the savings from the inverter unit and put to ventilating dehumidifier. The latent...
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    ^^^^^^ this. You could also look at some of...

    ^^^^^^ this.

    You could also look at some of the work Henry Gifford has done.

    A blower door is a tool for testing your homes leakage to understand how many "windows" are left open in your house...
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    Turn the thermostat to HEAT then set fan to on? ...

    Turn the thermostat to HEAT then set fan to on?

    If your upstairs is overheating you could possibly cover some radiators.

    Have you had a blower door test on the house? Often these...
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    Blower door test and load calc will help...

    Blower door test and load calc will help determine size.
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    +1

    +1
  11. Nice system. Run that pump until it can't keep...

    Nice system.

    Run that pump until it can't keep up - which may be never. Just use the furnace as backup, and for defrost if that's more comfortable.

    Abandon setback unless its a comfort thing....
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    3195 on 1500 sf is really leaky. 43 rh at 25 on a...

    3195 on 1500 sf is really leaky. 43 rh at 25 on a really leaky house is very dangerous, expect mold an rot on the upper interstitial spaces.

    A company worth its salt will have a target, wag would...
  13. +1 3 ton green speed if you can't get the grid...

    +1

    3 ton green speed if you can't get the grid heat.
  14. So if the load is 30k, what gas furnace do you...

    So if the load is 30k, what gas furnace do you recommend?
  15. Slick trick! Cottora - you may want to...

    Slick trick!



    Cottora - you may want to have your homes leakage measured. I don't know what number "reasonably tight" represents, I do know a lot of people's beliefs about their homes change...
  16. I don't think you've supported your position. ...

    I don't think you've supported your position.

    And by your definition of oversizing, if you are properly sizing your designs result in clients being worse off under just about all cases.

    Maybe...
  17. Moisture is not your home's best friend, so more...

    Moisture is not your home's best friend, so more moisture can quickly hit some very unpleasant tipping points.

    How much does your house leak? Reducing leakage can not only help keep heat in, it...
  18. Attic ventilation, the placebo that never stops...

    Attic ventilation, the placebo that never stops giving.

    What problem are you attempting to solve by fiddling with your attic ventilation?
  19. That's a pretty absurd argument (straw man?). I...

    That's a pretty absurd argument (straw man?). I suppose if someone wanted to do that they could, but now they are spending more money on equipment only to have a worse fit.

    And the other issue...
  20. I firmly believe the words we use subtly affect...

    I firmly believe the words we use subtly affect how we think on both conscious AND subconscious levels, and therefore we must be careful.

    So I would say that 60 mod is NOT oversized because it...
  21. Are you calling a 60k mod oversized for a 40k...

    Are you calling a 60k mod oversized for a 40k worst case load? I may have your intent wrong, but if not I would completely disagree with that thinking.

    I don't think a 60 mod is oversized until...
  22. Thanks Udarrell! Hey - even a blind squirrel...

    Thanks Udarrell! Hey - even a blind squirrel catches a nut once in a while!
  23. Ask how she likes to take a shower. 20 gallons of...

    Ask how she likes to take a shower. 20 gallons of 140° water dumped on her all at once, or 2 gallons of 102° water gently over 15 minutes.

    When the car is nice and comfortable, does she set the...
  24. +1 Getting the equipment to run as gently and...

    +1

    Getting the equipment to run as gently and long as possible will make the house quieter, cleaner, and more comfortable. (You have a 4" media filter I hope?)
  25. Natural Gas is falsely deflated due to glut. As...

    Natural Gas is falsely deflated due to glut. As global transport ramps up it's likely to get more in line with Oil per BTU (per cost in Europe and Asia). Plus, shift in use is capital intensive and...
  26. Ask anybody recommending equipment telling you...

    Ask anybody recommending equipment telling you whether better is worth it from energy savings perspective should be able to provide 4-5 client case studies. If they can't prove that they monitor...
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    Is there airflow police? Wanna see the crazy...

    Is there airflow police?

    Wanna see the crazy cutting edge stuff they're doing?

    http://bit.ly/EnergyDocsFBpage
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    Your thinking is correct, and the question is...

    Your thinking is correct, and the question is really nicely put. Chasing your tail is pointless and futile exercise, but a lot of sheeple are such simpletons they never get to the question you are...
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    People requesting a "free quote" really want...

    People requesting a "free quote" really want "free diagnostics, design..." (...and then I'll go with the cheapest guy.)

    So doing things other than quick and cheap becomes competitive...
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    2100 sf, good shell (good, not great. Probably...

    2100 sf, good shell (good, not great. Probably attic air sealing would help comfort a lot), worst case load likely 30k/15k, duct likely 50k heating/24k cooling.

    Problem? Multiple interconnected....
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    So, how much of your problem is the oversized...

    So, how much of your problem is the oversized equipment, and how much of it is a poorly performing enclosure? If you are still trying to get a grip on your problem and you are only looking at the...
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    Phone problem? Cloud problem? Methinks not. ...

    Phone problem? Cloud problem? Methinks not.

    Publicity stunt.
  33. tb - having problems with your Greenspeed? Do...

    tb - having problems with your Greenspeed? Do tell?

    Also, may need to hit you up on commissioning a ventilating dehum. I got disconnected from the install, but think they're going to have me...
  34. With what? Compared to what? With a Greenspeed...

    With what? Compared to what?

    With a Greenspeed it might be -10°, particularly if compared to oversized 95% single stage.

    Continuous running Mod furnace that number goes up some.

    Crappy...
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    Here's a great article about temp imbalance by...

    Here's a great article about temp imbalance by our own DavidR: http://bit.ly/2story1system
  36. You are welcome. Here's some more to chew on:...

    You are welcome. Here's some more to chew on: http://bit.ly/2story1system
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    lol... Gail, thank you for helping drive...

    lol...

    Gail, thank you for helping drive change. There are more and more people learning, and the place to improve your luck finding a knowledgeable contractor in CA is Energy Upgrade CA and...
  38. Please put your location in your signature. ...

    Please put your location in your signature.



    You'll eat what we want to feed you and like it.

    "They never call back complaining, so all must be good."

    (Numbskulls assume success...
  39. COOL!!!! Customer success - (had to sign a...

    COOL!!!! Customer success - (had to sign a waiver)

    http://bit.ly/undersizewaiverSUCCESS

    and another: http://bit.ly/floridajoyFSECstudy
  40. COOL!!!! Customer success - (had to sign a...

    COOL!!!! Customer success - (had to sign a waiver)

    http://bit.ly/undersizewaiverSUCCESS
  41. http://bit.ly/floridajoyFSECstudy

    http://bit.ly/floridajoyFSECstudy
  42. The ideal situation would be to have it run all...

    The ideal situation would be to have it run all the time.

    Without understanding the condition and size of the homes current deficiencies there is no way to really know what it will take to fix...
  43. How much does your house leak? Might want to...

    How much does your house leak? Might want to start there.

    Modulating communicating equipment, if properly sized, will run nearly continuously and solve your temperature imbalance issues if your...
  44. Ideally you'll have 600 cfm per ton in your...

    Ideally you'll have 600 cfm per ton in your climate. You want that air flowing FAST across that coil so only sensible heat is absorbed. Pulling moisture out of dry air is pure waste.

    You need a...
  45. 2000 sf, 3.5 tons is likely 1 -1.5 tons to big...

    2000 sf, 3.5 tons is likely 1 -1.5 tons to big for both your duct and your house. Search user floridajoy - a lot you can learn from her experience.
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    Yep, I have a Droid Razr Maxx. Battery at...

    Yep,

    I have a Droid Razr Maxx. Battery at 58% after fairly hard day of use. Big screen (hate apples tiny screen - will be curious to see what the 6 is like).

    Qi charging on TYLT stand at...
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    Put in a 40,000 btu furnace. Better yet, have...

    Put in a 40,000 btu furnace.

    Better yet, have a load calc done, include measured leakage, then multiply by .7

    When the load comes back 28000, put in a 40000 btu furnace.
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    Good discussion. +1, and really nice example! ...

    Good discussion. +1, and really nice example! Observations/comments from HO after the fix? Energy savings?
  49. Seems like some assumptions and conclusions being...

    Seems like some assumptions and conclusions being jumped to there, maybe some dots are missing and therefore not connected. Correlation causation confusion?

    I'm thinking with lower delta t of...
  50. Need a complete audit to sus that out... ...

    Need a complete audit to sus that out...



    Low on charge?...
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