Search:

Type: Posts; User: paul42

Page 1 of 20 1 2 3 4

Search: Search took 0.02 seconds.

  1. Energy efficient house for north central Texas

    It is possible to heat and cool a 4,000 sq. ft. house in North Central Texas with a 2 ton heat pump.

    I have lived in this house for about six years, and I know it works. I keep the house at 68 in...
  2. Replies
    2
    Views
    401

    This is the Ask Our Pro's forum. In order to post...

    This is the Ask Our Pro's forum. In order to post a response here, you must have verified qualifications and have been approved by the AOP Committee. You may ask a question by starting a new thread....
  3. Thread: An observation

    by paul42
    Replies
    12
    Views
    1,049

    According to the latest statistics I can find,...

    According to the latest statistics I can find, less than 1% of all CO deaths in the US are attributed to gas cooking appliances. And that includes ovens wich are typically much worse than cooktops...
  4. Thread: An observation

    by paul42
    Replies
    12
    Views
    1,049

    In my house, a dedicated make up air duct would...

    In my house, a dedicated make up air duct would not be cost effective. We typically run the exhaust hood less than an hour per week.

    The cost of the motorized damper alone would overwhelm any...
  5. Thread: An observation

    by paul42
    Replies
    12
    Views
    1,049

    I am not convinced that a dedicated make up air...

    I am not convinced that a dedicated make up air duct is the right answer for residences. The make up air is bringing in additional heat and humidity no matter where it is located and it is foolish...
  6. Thread: An observation

    by paul42
    Replies
    12
    Views
    1,049

    An observation

    and fair warning to those that might want to install a large capacity range hood.

    Late yesterday evening, I happened to notice that the thermostat claimed the temperature in the house was 76, even...
  7. Replies
    4
    Views
    518

    I don't see how anything could be any more...

    I don't see how anything could be any more comfortable than my 14 SEER Trane. I can not hear it running. It keeps the temperature within about a degree of the set point and maintains good humidity...
  8. Replies
    4
    Views
    518

    Personally, I would not look at any HVAC...

    Personally, I would not look at any HVAC equipment that takes more than about 2 years to payback. It will not be much longer than that and we will have LENR HVAC equipment at $.25 a megawatt / hour.
  9. Replies
    4
    Views
    518

    when to oversize

    http://apps1.eere.energy.gov/buildings/publications/pdfs/building_america/energy_savings_heat_pumps.pdf
  10. Replies
    19
    Views
    1,900

    I designed the duct work for the house before I...

    I designed the duct work for the house before I ran HVAC calc. The result of this backwards design is that the duct work is sized for a 5 ton unit and we ended up only needing 2. I have 4 twelve...
  11. Replies
    19
    Views
    1,900

    I normally run the fan speed on auto. I tried...

    I normally run the fan speed on auto. I tried running it on low and it did not change the humidity control issue.

    If the Fujitsu has an option to set the indoor coil temperature it is not...
  12. Replies
    19
    Views
    1,900

    I'm trying to understand how an additional supply...

    I'm trying to understand how an additional supply to the bedroom with a slave damper would work. We keep the house around 74 degrees in the daytime, and we keep the bedroom around 68 to 70 at...
  13. Replies
    19
    Views
    1,900

    Then I still do not know why the outdoor fan is...

    Then I still do not know why the outdoor fan is running when the inside unit is off.
  14. Replies
    19
    Views
    1,900

    I suppose that lightning is a possible culprit. ...

    I suppose that lightning is a possible culprit. However, with devices like this, the normal result of a lightening strike is that it stops working all together. I also have whole house surge...
  15. Replies
    19
    Views
    1,900

    On this mini-split, there is nothing as simple as...

    On this mini-split, there is nothing as simple as a relay, which makes it difficult to troubleshoot. The condenser fan motor is electronically controlled variable speed inverter driven. It does...
  16. Replies
    19
    Views
    1,900

    Still unhappy with my mini-split

    I have a Fujitsu 18RLQ with the wired control panel. Due to several issues, we only run it at night when we are at home, especially curing the cooling season.

    I had a technician out to look at it...
  17. Replies
    38
    Views
    2,990

    Because the ducts are inside the conditioned...

    Because the ducts are inside the conditioned space, there are no duct losses.
    Hvac-Calc has limited options for infiltration values and wall insulation. I chose the closest match I could come up...
  18. Replies
    38
    Views
    2,990

    I used HVAC calc to figure out the size of the...

    I used HVAC calc to figure out the size of the heat pump that I needed.
    Total heat gain
    6,076 Infiltration
    4,929 Walls
    2,650 People
    2,124 Windows
    1,464 ...
  19. Replies
    38
    Views
    2,990

    My wife is a very private person and has told me...

    My wife is a very private person and has told me to never post pictures of our house on the internet. She is very proud to show it to friends and family, but not to the world.

    The insulation...
  20. Replies
    38
    Views
    2,990

    six inch duct from outside to the return of the...

    six inch duct from outside to the return of the air handler.
    I've thought about adding an in-line fan and a CO2 controlled switch, but haven't got there yet.

    Before my CO2 monitor died, it said I...
  21. Replies
    38
    Views
    2,990

    Different climates call for different answers,...

    Different climates call for different answers, and every lot / home design changes what is cost effective.

    For this part of the country, the secrets are
    put the air handler & duct work in...
  22. Replies
    38
    Views
    2,990

    There is one supply and one return in the...

    There is one supply and one return in the basement. The majority of the cooling comes from the uninsulated metal duct work that is located in the lower level. The heat pump water heater in the...
  23. Replies
    38
    Views
    2,990

    It is an unusual house. The house is on a slope....

    It is an unusual house.
    The house is on a slope. The top floor is the living quarters and is 2,300 sq. ft.. The bottom floor is storage and mechanical with no windows and only one exterior door. ...
  24. Replies
    38
    Views
    2,990

    Put the air handler & duct work in conditioned...

    Put the air handler & duct work in conditioned space.
    Shade all the windows in the summer.
    Make the house air tight.

    West end of Fort Worth.
    Upstairs, it is 73.9, downstairs is 68.
  25. Replies
    38
    Views
    2,990

    I know my home is tight. 4,000 sq. ft. 2 ton...

    I know my home is tight.
    4,000 sq. ft. 2 ton heat pump, 108 outside, 73.8 inside.
Results 1 to 25 of 500
Page 1 of 20 1 2 3 4
Comfortech Show Promo Image

Related Forums

Plumbing Talks | Contractor Magazine
Forums | Electrical Construction & Maintenance (EC&M) Magazine
Comfortech365 Virtual Event