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    Hydronic System Contractor, Central MD?

    In the Hagerstown/Frederick, Maryland area, who has experience installing in-slab hydronic systems? I'm looking for a Triangle Tube, Munchkin, Buderus or Viessmann installer who isn't going to use...
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    ... and by the way, as far as getting advice on...

    ... and by the way, as far as getting advice on hydronics from local contractors, it's pretty hard to find somebody good who wants to talk about a small unusual system like this. So I wanted to...
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    Garage Hydronic System

    The shop we're building adds on to a garage that is separate from the house. House uses forced air, and there is no possibility of connecting to that system anyway, anyhow.

    When I suggest the...
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    I'm planning to build a woodworking shop around...

    I'm planning to build a woodworking shop around one end and side of my existing 2-car garage. 576 square feet with SIP walls. I'm in central MD where the winter design temp for HVAC systems is 10...
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    We had a 2-ton Infinity installed in June. FE4AN...

    We had a 2-ton Infinity installed in June.
    FE4AN air handler with Infinity control.

    I love this system!
    It will maintain close to 74 degrees and 46-48% RH under a variety of conditions,...
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    My house is the same size as yours, and just a...

    My house is the same size as yours, and just a little older.
    We keep it very comfortable with a 2 ton system, which most of the time runs on low speed (which equates to 1 ton).
    Set point lately is...
  7. Does this mean that if you switch filter brand...

    Does this mean that if you switch filter brand (or type), and perform the reset, the system will detect the amount of airflow through a clean filter of this new type, and issue the "change/clean"...
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    That's the first thing that impressed me when our...

    That's the first thing that impressed me when our installers pulled the unit (25HNA6) off the truck. It was easily 2x, maybe 3x the size of the one it replaced. New and old both 2 tons, but with a...
  9. Thread: Foam Home

    by tom21769
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    1,796

    What is the insurance company's take on this? ...

    What is the insurance company's take on this?

    As I recall from when we were considering SIPS (sandwiched foam panel) construction, there has been some "heated" discussion of fire safety and...
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    It's definitely not just your area. Here on the...

    It's definitely not just your area. Here on the east coast, I had a number of bids,too. Just as you say, not one broke it down into materials and labor. Not only that, I had to pull teeth to get...
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    Yes, it sure does go lower. All afternoon I had...

    Yes, it sure does go lower.
    All afternoon I had it set at 76 or 77; RH was around 49.
    Outside temps were in the high 80s or low 90s, and humid.
    Then I dropped it down to 74. High stage kicks in,...
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    The system stops running after overcooling 1...

    The system stops running after overcooling 1 degree, but before it reaches even 48%. Maybe there is a time-limit on length of run-time in dehum mode?
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    System is conditioning about 1350 square feet,...

    System is conditioning about 1350 square feet, covering 2 stories above a crawl space. Maryland, R49 attic insulation, tight-fitting low-e windows, porch over east-facing windows, tinting on the only...
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    Here are some stats on the first 93 hours using...

    Here are some stats on the first 93 hours using our Infinity:

    Blower operation ...... 48 hrs.
    HP low cool .............. 30 hrs.
    HP high cool ............ 8 hrs.

    Blower cycles ........... ...
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    With fan set to AUTO, the system has been running...

    With fan set to AUTO, the system has been running on low all day.
    Blower delivers 352 CFM.
    It was up to about 90 degrees and humid this afternoon, but I didn't observe the outdoor unit ever going...
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    O.K., I've set the fan to AUTO, High Cool Latch...

    O.K., I've set the fan to AUTO, High Cool Latch has been on NONE.

    Under Fan Coil Setup, it is set to HP Airflow=COMFORT and Dehum Airflow=NORMAL.

    But I don't know how to get any read-out for...
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    I have a new 2 ton Infinity heat pump system,...

    I have a new 2 ton Infinity heat pump system, FE4A inside and 25HNA ouside.

    Still trying to understand the whole dehumidification process.

    My humidity setpoint is at the lowest 46% setpoint...
  18. Our new Infinity heat pump (2 ton Infinity 16...

    Our new Infinity heat pump (2 ton Infinity 16 with FE4 coil) is unbelievably good. The one fault I find with it is the cheesy "washable" fiberglass filter.

    I'm going to place an order with...
  19. New Heat Pump in Frederick, MD

    As I type this, 2 installers are replacing my ~14 year old heat pump near Frederick, MD. Original unit was a "builders'" grade Bryant (Carrier) 2 ton unit, mayber not even 10 SEER. So my situation...
  20. Even if it turns out you underestimated your load...

    Even if it turns out you underestimated your load by 2 or 3 thousand BTU, couldn't you add attic insulation for a couple hundred bucks? You could tint your east/west windows for about $50, put up...
  21. Are you really committed to this lot, this...

    Are you really committed to this lot, this builder, and a
    2-story basement with northern exposure?
  22. I'm a few hours southwest of Philly, and my...

    I'm a few hours southwest of Philly, and my dealer (ARS) says he cannot get them until June. Guru, is there any chance I can buy through you and have my local Carrier guy install?
  23. gtoboy, what part of the country are you in? I'm...

    gtoboy, what part of the country are you in?
    I'm trying to buy one for my house in Maryland.
  24. Carrier Performance with Skinny FanCoil

    I'm considering a 2-ton "Performance" HP too.
    One of the appealing features is that 69 dB sound level.

    But, the recommended fancoil (FE4AN ...24... 003) for this unit is too big for my space. ...
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    We are about to replace our heat pump system....

    We are about to replace our heat pump system.
    I've had a bunch of contractors out, most of them sales reps but a couple with technical/repair backgrounds, and not a single one has brought up the...
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