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  1. I know this thread has been dead for over a year,...

    I know this thread has been dead for over a year, but I thought I would post a follow-up just in case the same question comes up again.

    I ended up going with a mini-split system for my bonus room....
  2. [QUOTE=motoguy128;13367621]SO you're showing a...

    [QUOTE=motoguy128;13367621]SO you're showing a COP of 3.2 at 30F. Where did you get that data? I wonder if that's steady state, or if it factors in energy for defrost.QUOTE]

    The numbers are...
  3. Duel fuel (NG + Heat Pump) optimum crossover point.

    I have a 80% gas furnace and a Goodman DSZC16 16 seer heat pump. I live in Eastern Washington.

    Our system is currently configured to switch to natural gas somewhere around freezing temp.
    ...
  4. Thank you for your input. The zoning system...

    Thank you for your input.

    The zoning system would use Honeywell control boards. (Another T 8000 thermostat, and a HZ 432 zone control board). There is a Honeywell board of some sort on the furnace...
  5. Hi Guys, I really appreciate all of the...

    Hi Guys,

    I really appreciate all of the advice. If the zoning system requires a bypass to work properly then I would rule it out as a option. If I zone I would add extra registers to the bonus...
  6. Well that is how I was originally leaning, but...

    Well that is how I was originally leaning, but both the contractors have told me that the zoning is very straightforward with my system. Now Motoguy has me thinking about zoning off the master suite...
  7. The media room mostly has low occupancy. Usually...

    The media room mostly has low occupancy. Usually it is just me on the PC, but when I have company for a movie (4 people) and run the projector it adds quite a bit of heat. I probably only average one...
  8. Hi Dave, Part of my problem is that the bonus...

    Hi Dave,

    Part of my problem is that the bonus room exterior gets a lot of sun relative to the rest of the house. The house is well insulated energy-star construction and the air conditioning...
  9. Advice please (mini-split vs zone for media room)?

    I have a bonus room over the garage that is too hot most of the time. I have PCs as well as a video projector in the room so it has a significant extra heat load.

    The main house is 1960 sq ft and...
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