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  1. Replies
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    OK... when pairing a two-stage furnace with a...

    OK... when pairing a two-stage furnace with a heat pump, will one expect increased efficiency, some savings and increased comfort?
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    Interesting. Seems to be a divergence of opinion...

    Interesting. Seems to be a divergence of opinion amongst even some of the pros both here and on another site. Two stage with variable speed blower might be the difference. One pro 8 days ago on this...
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    I thought a two stage, especially a two stage...

    I thought a two stage, especially a two stage variable speed with ECM motor would improve both efficiency and comfort? What did I miss?
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    OK. Thank you. I was puzzled. Thank you for the...

    OK. Thank you. I was puzzled. Thank you for the assistance.
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    Neither the air ventilation nor the furnace is...

    Neither the air ventilation nor the furnace is running right now and the orange flashing light is still flashing at one second intervals. I supposed I had better visit my HVAC guy this a.m. Something...
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    Trane XR90 flashing light

    Last year I had my duct work enlarged and a second cold air return installed. When it was done, I noticed that the flashing red/orange light through the plastic on the Trane XR90 no longer flashed.
    ...
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    That is beyond my pay grade. The pros would know.

    That is beyond my pay grade. The pros would know.
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    There are rules! :):angel:

    There are rules! :):angel:
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    We just got into a conversation about what I'd do...

    We just got into a conversation about what I'd do when it time to replace my system 15 years down the road (approximately). I said I'd probably go at least two stage but very likely variable speed. ...
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    Might be their new Ion 3.0 version. Dunno. Ran a...

    Might be their new Ion 3.0 version. Dunno. Ran a savings calculator and it would be minimal if I don't use constant fan (about $75 a year) and would cost me $13 annually if I do).

    News Flas... I...
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    OK. I looked at internet stuff on it yesterday...

    OK. I looked at internet stuff on it yesterday the literature claims it is variable speed. The fine gentlemen here say it is not. And it appears there are two models of it -- the IM series and the...
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    So then this is more of a modified two-speed...

    So then this is more of a modified two-speed motor (low/high with variables)? Also existing system info is ARI # 1216945
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    Evergreen Motor switch

    I have Trane XR90 single speed gas furnace and a Trane XL14i heat pump. My tech just left from doing the annual service. He said there is a variable speed "Evergreen" motor that can be dropped in to...
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    I think you figured your gas rates high. I...

    I think you figured your gas rates high. I figured your cost per therm with fees is $1.297 based on 80 therms of gas. Higher if you use less therms and less if you use more. Your overall rate is...
  15. Yep. Mine works great here in the PNW. Low bills...

    Yep. Mine works great here in the PNW. Low bills and dual fuel capability when the temp drops to under 20. Heats the 2,981 sq. foot 1.5 story just fine. Don't know where or how your formed your...
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    Media Filters

    I'd like an opinion on the Air Handler brand media air filters sold by Grainger. Merv 11. I have been using Air Daemon Merv 11s. I'm about ready to buy a case of at least six. The Air Daemons...
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    I had approximately a 5 degree difference between...

    I had approximately a 5 degree difference between upstairs and downstairs in my four-year-old 3,000 sq. foot 1.5 story home. Attic insulation of R-60, energy efficient windows, yada yada. Single...
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    That's a crock. I run mine down to 20 degrees...

    That's a crock. I run mine down to 20 degrees (2,981 sq. feet, 1.5 stories, 3.5 ton single speed) and it keeps the home nice and warm. Thermostat settings: AWAKE: 69, LEAVE: 67, RETURN: 70,...
  19. I live 60 miles south of you and would suggest...

    I live 60 miles south of you and would suggest going with the HP and gas backup. I have now been in my place four years. My first year without changing any settings on the thermostat other than...
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    When my place was built in 2007, the same company...

    When my place was built in 2007, the same company was just finishing another home in the subdivision. It received the Energy Star certification. Mine was better insulated and had the same Built Green...
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    I agree that you should call/contact Skyheating....

    I agree that you should call/contact Skyheating. You are in the perfect climate for the heat pump system with backup natural gas. I'm sure he will do the Manual J and D calcs and give you the best...
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    Energy Star, when you replace the washer and...

    Energy Star, when you replace the washer and possibly the dryer, get front loaders. Spin cycle has them nearly dry.

    Might try some insulation as all that heat's going up and out. Fastest way to...
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    That'll do it.

    That'll do it.
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    January bill was $266.93. Heat pump and natural...

    January bill was $266.93. Heat pump and natural gas. Natural gas was $25.57 of the bill. 3,000 square feet. I have a Bosch dishwasher that also heats the water but it's never been an issue. 9 foot...
  25. Nate, three months ago I spent somewhat less than...

    Nate, three months ago I spent somewhat less than you were quoted on re-doing my cold air return and adding a second return. I don't know if you are having "noise" issues" when the system runs, but...
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