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Type: Posts; User: rbeck

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  1. Replies
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    I find that most of the equipment is in the range...

    I find that most of the equipment is in the range of 100% over sized. This is not a rule to just cut the appliance size in half. I am amazed that a heat pump will be sized let's say for 3 ton. This...
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    1,056

    He followed manual J for the programming it is...

    He followed manual J for the programming it is accurate. Any heat loss will actually oversize equipment slightly, maybe 15 - 20%. I usually suggest homeowners get the heat loss done so all the...
  3. Replies
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    1,056

    Must be a big secret!

    With all the talk about confusion on which equipment to buy being it 12 SEER or 20 SEER. This brand or that brand. 80+% or 90+%. With all this talk why we do not talk more about proper sizing. The...
  4. 1/2" pipe will carry between 15000 and 17,000...

    1/2" pipe will carry between 15000 and 17,000 btu's. They may be OK depending on the size of the radiator.
    I would get used to installing water boilers before I try converting an old steam system....
  5. Replies
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    2,513

    I would think the unit is large enough. At 106...

    I would think the unit is large enough. At 106 you can only expect a 20 - 25f drop from outdoor temps. There may still be duct leaks but as far as sizing it is OK. The electric bill seems high. My...
  6. Is it one pipe or two pipe steam? This may be...

    Is it one pipe or two pipe steam? This may be best left to experience as it can be a real headache. If two pipe steam are the returns from the radiators large enough or must they be resized? Is it a...
  7. Having 35 years in this industry I usually find...

    Having 35 years in this industry I usually find the manufacturers to be fair in their warranties. The warranties are for manufacturers defects. The reason in my opinion that they get a bad rap is due...
  8. I also would keep the radiator system. Install a...

    I also would keep the radiator system. Install a high efficiency boiler with outdoor reset. Then add a duct system for a/c. I am a firm believer that separate systems are best but getting better as...
  9. Replies
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    Rheem has been a very good product for me for the...

    Rheem has been a very good product for me for the last 20 years. I have installed a few hundred with excellent results. Just make sure whom ever does the job it is sized properly with a heat gain and...
  10. Richvacr, you post leads to what I have been...

    Richvacr, you post leads to what I have been saying for years. there is a product for every application and it is not always the most or least efficiency. It is the locale and the job. Back to your...
  11. It does not matter to the current administration...

    It does not matter to the current administration if you can afford it or not. They will just pass another stimulus bill. Has the first one helped you yet?
  12. Replies
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    1,841

    you have more problems than the unit not cooling....

    you have more problems than the unit not cooling. When it does get fixed it will never be comfortable. 3.5 ton for a house <1900 sq ft. In a brand new home a 3.5 ton should be about 4000 sq ft if not...
  13. Replies
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    For FAQ on heat loss and importance of them...

    For FAQ on heat loss and importance of them follow this link. There should never be a central heating or cooling unit installed without a manual J heat loss.
    I had a guy mention to me one time he...
  14. How many btu's will a heat pump put out without back-up?

    Is there a formula to determine the amount of btu's a heat pump puts out at at a given outdoor temperature providing air flo charge etc is correct?
    I have a Rheem unit model # RHSL-HM2417JA Air...
  15. Replies
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    453

    Here is a chart that may help....

    Here is a chart that may help.
    http://www.comfort-calc.net/Air_Conditioning/General_Troubleshooting_Chart.html
  16. I think all these rate hikes is a government ploy...

    I think all these rate hikes is a government ploy to push residential customers to solar and windmill use for power and heat. :D
  17. That is too big of a jump. There are other sizes...

    That is too big of a jump. There are other sizes available like 70,80,90,105,120,150,210,225,285,399. Some have a 5-1 turn down and others are 3-1 turn down. Some are cast aluminum and some are...
  18. Replies
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    819

    What they both said but the important thing is...

    What they both said but the important thing is make sure the pad is not touching the home or you will get a vibration noise inside the home. Most are 12" or more.
  19. A lot of guesses go on when we talk mod/cons. You...

    A lot of guesses go on when we talk mod/cons. You don't know what temperature you will be operating at until there is a heat loss and radiation calculation done. Nobody knows when your system will...
  20. Replies
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    941

    A properly sized unit should be only able to drop...

    A properly sized unit should be only able to drop the temp 20f and a/c will max out about 90 - 95 f. In those king of temperature it should run a lot and almost non-stop. As cooler3 stated you must...
  21. Replies
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    If that 50 x 25 is a single story the 2 ton...

    If that 50 x 25 is a single story the 2 ton should have been more than plenty. How did it heat? It sounds more like a duct or charge issue. Have a heat gain done and verify the size. beyond that it...
  22. Replies
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    3,126

    I would start with a duct static test. What...

    I would start with a duct static test. What specifically is your problem. You are very vague. Is it not cooling well, part of house a different temp or what.
  23. Replies
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    Hmmmmmmmmmm! Buying one or two dehumidifiers,...

    Hmmmmmmmmmm! Buying one or two dehumidifiers, paying to run them plus paying for an over sized a/c unit, paying for a dump duct. Add to that the extra heat you have to remove from the humidifier(s),...
  24. Replies
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    9,775

    Manual J should separate it well between the...

    Manual J should separate it well between the first floor and second floor as the second floor has a heat gain for the ceiling and the first floor does not. The first floor has a floor loss which is...
  25. Here is a place to start for getting info....

    Here is a place to start for getting info.
    http://www.comfort-calc.net/Water_FAQ.html
    Start with sizing and follow the installation manual. That's what I always suggest. Boiler AFUE efficiency is...
  26. Replies
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    1,564

    My home is in PA and it is 2500 sq ft. If I add...

    My home is in PA and it is 2500 sq ft. If I add the partial basement it is about 2800 sq ft. It was built in 1978 but has had attic insulation blown in. My highest electric bill was Jan which...
  27. Replies
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    3,777

    I would not ever install an electric tankless...

    I would not ever install an electric tankless water heater. Sorry i just got involved here but the choice would have been an indirect off the oil boiler, make the boiler cold start and use the tank...
  28. Replies
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    Sounds like a blocked pigtail to me.

    Sounds like a blocked pigtail to me.
  29. Thread: Is it too small

    by rbeck
    Replies
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    795

    I would have a heat loss done and check the duct...

    I would have a heat loss done and check the duct work. My house is 2500 sq ft and I have a 3 ton heat pump and other than when it is in single digits then it does not shut off just the electric...
  30. Replies
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    1,557

    You needa load calc. For more info on the...

    You needa load calc. For more info on the importance of load calcs see the FAQ link below.
    http://www.comfort-calc.net/faq.html
    Load calcs maximize your fuel savings
  31. Replies
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    2,347

    1800 sq ft home @ 90k furnace sounds too large to...

    1800 sq ft home @ 90k furnace sounds too large to me.
  32. Replies
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    1,688

    The load calc's can be very accurate and uses the...

    The load calc's can be very accurate and uses the OD design temp in your area. Here is a chart for for the US.
    http://www.comfort-calc.net/outdoor_design_temps.html
  33. Replies
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    A load calculation is a must today. For more...

    A load calculation is a must today.
    For more info sww these FAQ.
    http://www.comfort-calc.net/faq.html
  34. Replies
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    I might as well add my 2 cents on NATE and...

    I might as well add my 2 cents on NATE and training.
    I have done training the last 7 years. I have found there are good young and older techs. There are some not too good young and older techs....
  35. 4 tons of cooling for 1800 sq ft home.......I'd...

    4 tons of cooling for 1800 sq ft home.......I'd probably at least put windows in those holes. That size ac on that size home, something is wrong. Good insulation? I'd get another heat loss done.
  36. Replies
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    I think he meant Dirty Power.......Power...

    I think he meant Dirty Power.......Power fluctuations
  37. Replies
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    I have run into this a few times, the lights dim...

    I have run into this a few times, the lights dim when large electric uses start up. I have found the one of these problems all three times. Have the contractor clamp an amp meter on the copper ground...
  38. Thread: service tips?

    by rbeck
    Replies
    7
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    603

    The 24V is incoming to the coil. The coil is not...

    The 24V is incoming to the coil. The coil is not producing the voltage. The open coil is a break in the coil windings so no magnetism is produced to pull the contactor closed. Since the coil is open...
  39. Heat loss, Heat Loss, Heat Loss. The more...

    Heat loss, Heat Loss, Heat Loss. The more efficienct the product is, the more important a heat loss is.
  40. Replies
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    870

    Fresh air calculation here....

    Fresh air calculation here.
    http://www.comfort-calc.net/Combustion_Air_Calculation.html
  41. Replies
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    2,609

    You could also try this one...

    You could also try this one
    www.comfort-calc.net/home-page.html
    My house is 2600 sq ft and my heat loss is 40K. I have a 3 ton heat pump with 10K back-up and never had a problem.
    My highest...
  42. Replies
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    3,981

    When it comes to venting I will predict court...

    When it comes to venting I will predict court cases, as it is all about certification. What is paid for goes and what is not loses. It is not what works and what does not work, it is big brother got...
  43. Replies
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    Here is a brochure from Extrol for sizing. Use...

    Here is a brochure from Extrol for sizing. Use worst case scenerio. Other manufacturers have different charts. I know the tank size changes at different points in the chart....
  44. Replies
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    Remember a few things. The local codes inspectors...

    Remember a few things. The local codes inspectors are hired at the local level to inspect that the installation was installed according to local codes. Here is where the problem exists. The national...
  45. Replies
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    1,982

    I never heard of a 1 gallon expansion tank. I...

    I never heard of a 1 gallon expansion tank. I believe he means a #15. It is about the size of a gallon or two container but is equal to a 15 gallon non-bladder type tank.
  46. Replies
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    3,981

    Bpoint, The Knight boiler manual states the air...

    Bpoint,
    The Knight boiler manual states the air intake has to be a minimum if 12" below the vent. It does not look like this is what you have.

    Badgerboiler MN,
    You may not be able to legally...
  47. Replies
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    729

    Where are you located?

    Where are you located?
  48. Never finance and never buy new. That's my...

    Never finance and never buy new. That's my philosophy. Some say they donít have the money for that. True, but why. I want it now attitudes and finance charges. I made up my mind a long time ago not...
  49. Thread: "Free" heat?

    by rbeck
    Replies
    7
    Views
    829

    It will cost you more. Think about this. If the...

    It will cost you more. Think about this. If the heat pump runs constantly at 68 thermostat setting how will it get to 70 unless the electric strip heat comes on. Turning the thermostat up does not...
  50. Replies
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    647

    Size does matter! Have a heat loss done on the...

    Size does matter! Have a heat loss done on the home and check against existing boiler size. When adding another zone to an existing home you do not increase the size of the boiler unless the...
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