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    Switching to pro membership

    How do you switch to a pro membership?
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    Pressure Test forRadiant Panels

    Anyone familiar with radiant heatin out there? I want to know what the maximum pressure you can air test a system with panel radiators is. Specifically with Dianorm Steel radiators? Any help is...
  3. Give us a call

    We're in RWC and we do quality work (including load calcs!). Check us out on the web at www.baph.com .
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    Sheet metal question

    New to sheet metal here....Say you wanted to order rectangular sheet metal with all four sides overlapping...would you ask for "S" or "Drive" seams?
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    444

    Can anyone remember which one it is? I was...

    Can anyone remember which one it is? I was searching but couldn't find it.
  6. Thread: 4" ducts

    by dchvac
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    559

    Some acquaintances of mine has 4" ducts...

    Some acquaintances of mine has 4" ducts throughout their entire house (1 duct in each room) and an old 50s furnace (BTU's unknown). Each duct (I've been told) comes right of the plenum. They say it...
  7. Thread: rotobrush

    by dchvac
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    762

    I've got a rotobrush in the back of my shop...I...

    I've got a rotobrush in the back of my shop...I can give you a great deal on it.
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    Here's the scenario....as unbelievable as this...

    Here's the scenario....as unbelievable as this sounds, we've got 3 vacuum pumps, 2 near new Supco VG64 gauges, 1 brand new VG64 gauge and new hoses.

    All 3 vacuum down under 200 microns. Great....
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    Can anyone recommend a decent vacuum pump? I...

    Can anyone recommend a decent vacuum pump? I understand that a really good vacuum gets down around 200 microns, but I've been having trouble getting below 500. Currently using a Robinair.
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    How hot is it outside?

    How hot is it outside?
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    jramunii Ted was the one who introduced us to...

    jramunii

    Ted was the one who introduced us to Arzel. We use you for most of our zoning systems. I guess that noise is the real issue with zoning. Do you or Ted recommend using a bypass damper on...
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    I too am a huge fan of Arzel

    I too am a huge fan of Arzel
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    If he's certified, he'll have a certificate...

    If he's certified, he'll have a certificate showing that he or his installers went through the cpt training.

    Go with someone who does a computerized load calc and duct design. It's too easy to...
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    I thought you were giving us advise out of the...

    I thought you were giving us advise out of the kindness of your heart..nope, just shameless self promotion
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    Click on the HVAC Calc link on the top and you...

    Click on the HVAC Calc link on the top and you can do a load calc for yourself.
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    I second everything Dan said.

    I second everything Dan said.
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    I agree with you 100% on getting a certified...

    I agree with you 100% on getting a certified installer to do it...plus they can take advantage of the 5 year (instead of 1 year) warranty that's available to them when they do use a certified...
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    Did either of the contractors do a room by room...

    Did either of the contractors do a room by room load calc? That should tell them exactly how many btu's and cfm each room will require. It also takes into account things like computers and...
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    I see a reality show in the making

    I see a reality show in the making
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    1,349

    LMAO Can I quote you when I try to convince my...

    LMAO

    Can I quote you when I try to convince my guys to sign up?
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    Dash, I hear ya. The techs should be off soon,...

    Dash, I hear ya. The techs should be off soon, and I'm sure I'll get an earfull. Actually, I'm interested to see what their objections are to it, if that be the case. I'm looking at it from a...
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    Just wondering how many pro's on here are NATE...

    Just wondering how many pro's on here are NATE certified and what kind of impact/benefits it has had on your job performance, technical ability and/or organizations.
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    If you think that the cost of the copper and the...

    If you think that the cost of the copper and the labor is all that is involved, you are sadly mistaken. If you can find cheap equipment/materials on line, here is how you can reduce the price of...
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    Manual J's can be a lot of work, so as a general...

    Manual J's can be a lot of work, so as a general rule, most companies that I know of will charge a fee for copies of the Manual J, which will be applied towards the cost of the install if you sign on...
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    Tell me what it is and I can answer all those...

    Tell me what it is and I can answer all those questions for you.

    At first glance, I know it's 24,000 BTU cooling capacity, and I would guess 14 SEER, but need more info (The PCY is throwing me...
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