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Type: Posts; User: gregbig2

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  1. Best way to humidify whole house, geothermal install

    I currently have forced air propane and I'm going with Bosch geothermal. I have an aprilaire 600 humidifier on my furnace now. The plan is to move it and reinstall in the heat pump. But won't...
  2. Ok, got it. That makes sense. Thanks again.

    Ok, got it. That makes sense. Thanks again.
  3. One last thought, why don't you use thermally...

    One last thought, why don't you use thermally enhanced grout? Using grout at .8 conductivity vs .4 would make the system more efficient, save me $ on my electric bill correct? Is it another one of...
  4. Ok, thanks. Yes, I would think rock drilling,...

    Ok, thanks. Yes, I would think rock drilling, it's shale here.
  5. Enhanced thermal grout and thermal conductivity

    Quick questions for residential install, 2400 sq ft house, 30,000 btu heat loss, Allentown, PA.

    Should the contractor use thermally enhanced grout and if so, what conductivity, and should a...
  6. Sorry mod, I've got to pay more attention to the...

    Sorry mod, I've got to pay more attention to the rules on the different forums. Thanks Skyheating, maybe I will stick to 4 ton. I do like that it will run more in stage 1 and like you said, if...
  7. I have some quotes to share. First, I had the...

    I have some quotes to share. First, I had the house modeled by an energy auditor (resnet/bpi certified) and he has it at 30,000 btu heat loss. HERS rating of 72. Tight house. I have quotes at...
  8. It looks like $20,000 after tax credit. My...

    It looks like $20,000 after tax credit. My savings should be about $2000 per year, including hot water and a/c. My furnace and a/c are 8 years old, so that's part of the ROI also. Yes, about...
  9. Sorry, I re-read your post and you explained it...

    Sorry, I re-read your post and you explained it already, add a hydronic coil to the propane system. So I'd use my existing ducts. I could probably easily add a zone to the basement also with a...
  10. Interesting, very interesting. I googled...

    Interesting, very interesting. I googled Altherma and it looks like it's a inverter heat pump boiler? I'm trying to understand how that would work with my force air ducts though? Use a water to...
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    Manual J, attic insulation

    Just quick question, when measuring the rooms, windows, etc., to come up with proper sizing for geo, should the contractor be looking at attic insulation also? I had 3 guys over so far and none of...
  12. Replies
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    1,389

    I say $2000 a year in savings because I'm paying...

    I say $2000 a year in savings because I'm paying $3 a gallon for propane.
    Ok, thanks, I thought it was about 15-20 years.
  13. Replies
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    Service life of HVAC equipment

    Hello, I'm trying to crunch the numbers on a new $ geothermal system install. My house and equipment is about 9 years old. Forced air propane with central air. If I'm going to have to...
  14. Thank you, that's what I thought.

    Thank you, that's what I thought.
  15. Don't do geothermal, can't find parts for old units

    I'm in the process of getting quotes to install geo. I had one guy tell me today that he is finding that he's unable to get parts, compressor, etc, for geo heat pumps, some only 6 years old. ...
  16. Thanks for the feedback. Arc, you said you...

    Thanks for the feedback. Arc, you said you don't see me getting more than a 4 COP, please explain. I don't understand that. I thought the outside temp was irrelevant with the geothermal since...
  17. Home is 2350 sq ft. Seems like every contractor...

    Home is 2350 sq ft. Seems like every contractor so far said they do vertical. Yep, I had a waterfurnace guy here this evening. I'll check out your youtube, thanks. I have an acre lot but every...
  18. Oh, how I would love $1.90 propane. I don't...

    Oh, how I would love $1.90 propane. I don't understand how it can be that much cheaper in WI than PA. Well, you can see why I want to go geothermal.

    You say change to %90 on propane just...
  19. Trying to justify geo cost, looking at all factors

    I'm thinking about installing geothermal at my house. I've been using this spreadsheet to look at costs of different fuels:
    www.eia.gov/neic/experts/heatcalc.xls

    My current system is forced air...
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