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Type: Posts; User: larobj63

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  1. Replies
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    I saw the 6" PVC in the pictures and thought you...

    I saw the 6" PVC in the pictures and thought you might have done this, then went back and read your text and confirmed that's exactly what you did, - very clever!!! When the house is cooling some...
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    Neat idea using isolation flanges on one side of...

    Neat idea using isolation flanges on one side of the pumps and one ball valve on the manifold.
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    Looks nice! Cudos to the client for spray...

    Looks nice! Cudos to the client for spray foaming the roof decks in order to use the attic for HVAC. Not so sure I would put a water heater up there, but... lol
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    Check your local code on proximity to operable...

    Check your local code on proximity to operable windows. In NY you can't be under an operable window within 4 feet (among other restrictions). Beyond that, "common sense" dictates that flue gases...
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    That's a really bad answer. Two reasons - 1)...

    That's a really bad answer. Two reasons - 1) Code is code, and 2) what about when they move?

    Never assume that installed equipment will be used as the buyer describes. Assume it will be used...
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    Looks great! The diamond plate is a bit "much" -...

    Looks great! The diamond plate is a bit "much" - I guess you can't win. lol

    When using teh boiler buddy, stop using the supplied decoupler manifold! Needless extra pump!
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    I'll give you a few, based on NYS codes.. ...

    I'll give you a few, based on NYS codes..


    servicable equip needs to be 10' from roof edge or provide railing
    MUA inlet needs to be 10' from exhaust or vent
    continuos welded water tight...
  8. Looks great! Use the outdoor reset control built...

    Looks great! Use the outdoor reset control built in the boiler for the "high temp zone", just need to install the outdoor temp sensor and set up the parameters. You can really maximize efficiency...
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    They gave you goofy connection sizes on those...

    They gave you goofy connection sizes on those units! Looks great.
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    Hey, it's his money I guess! Could be a nice...

    Hey, it's his money I guess! Could be a nice mark-up waiting to happen on a warehouse full of boiler buddies for all I know.
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    Nice looking work! I don't see the point to a...

    Nice looking work!

    I don't see the point to a boiler buddy with a mod/con boiler but that's me. Seems like a really expensive way to decouple primary/secondary loops. Why not just do closely...
  12. Thread: Trane xv95

    by larobj63
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    There's a 60 MBH XV 95 in my basement. Good...

    There's a 60 MBH XV 95 in my basement. Good unit. :cheers:
  13. Replies
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    That's what I was thinking. Plenty of other...

    That's what I was thinking. Plenty of other things in need of repair in the photos (railing, siding, door jam needs paint), looks to me like the "Doctor" is tighter than two coats of paint. :grin2:
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    Fuzzy logic. If a sub-panel is added to avoid...

    Fuzzy logic. If a sub-panel is added to avoid the "evil" tandem breakers the whole load still goes thru the service panel and service entrance. :whistle: Shoot, you can put two (three, four, etc,...
  15. Thread: Ultra boiler

    by larobj63
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    7,083

    I have never seen galvanized pipe in any hydronic...

    I have never seen galvanized pipe in any hydronic system, big or small, new or old. :putergreet:

    This install looks good!

    I agree I don't like a circ on end like that, Taco or not, it...
  16. Thread: FARM SHOP GEO

    by larobj63
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    2,830

    Really nice work! Nice to see such pride and...

    Really nice work! Nice to see such pride and professionalism in an install!
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    Lotta time and money just to avoid "usightly"...

    Lotta time and money just to avoid "usightly" :whistle: RGD's. I'm sure it will look nice, don't get me wrong, but jeesh..

    It's funny, when I build, I may soucre some old ornate cast iron...
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    And thereby eliminating any benifit the tankless...

    And thereby eliminating any benifit the tankless had to begin with. lol

    Sorry, I'm not a big fan of tankless, unless it's a very low usage application where the idle storage time strongly...
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    Looks awesome! Nice house! I'll be building...

    Looks awesome! Nice house! I'll be building within a few years - can't wait! And yes, I know it's a cr@p ton of work! :grin2:

    What name brand radiant manifold is that? I like the look of...
  20. Thread: twin boilers

    by larobj63
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    I'm not 100% sure on Triangle tube either, but I...

    I'm not 100% sure on Triangle tube either, but I suspect they are like most other mod/cons, and I would leave the cascade control to the boiler board in most instances. They will do lead/lag and...
  21. Thread: twin boilers

    by larobj63
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    2,465

    Looks good! Why the Tekmar controls instead of...

    Looks good!

    Why the Tekmar controls instead of just using the internal logic? Don't the Triangle Tubers have expansion/cascade control, outdoor reset, etc? Is there check valves in the parallel...
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    Looks nice! I agree w/ hvacvegas, I always see...

    Looks nice! I agree w/ hvacvegas, I always see PRV's and back flows on a horizontal run. Guess I never questioned whether they could be oriented vertically. I would think the back flow couldn't be...
  23. Thread: Loop Field

    by larobj63
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    2,259

    OP said between 8 to 10 feet deep. We spec...

    OP said between 8 to 10 feet deep.

    We spec HDPE for this application, I'll let the OP chime in if he wants.
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    Chuck - in light of a few recent conversations...

    Chuck - in light of a few recent conversations I've had, including a visit to a boiler manufacturer's plant, I wanted to share something with regards to our discussion of thermal efficiency versus...
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    Thanks!

    Thanks!
  26. Replies
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    I agree. I like the idea a single stager with a...

    I agree. I like the idea a single stager with a buffer tank, but in practice I will continue to push mod cons in the meantime... That stored heat could work against you if it isn't in the...
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    lol - And finally - this article is perfect for...

    lol - And finally - this article is perfect for our conversation. Basically, you are right about thermal efficiency vs firing rate. But please read the whole article, it explains the advantages of...
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    Let's also consider that a reduced firing rate...

    Let's also consider that a reduced firing rate with low return water temp will yield a higher thermal efficiency than full fire with 160+ return water. Like I said, the biggest worry for this and...
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    Hmmm. Seems like you are doing a little more...

    Hmmm. Seems like you are doing a little more math than you need to. Does the gpm change at high fire vs low fire? Nope. So why are you bothering to calculate it? You can pick an arbitrary flow,...
  30. Expansion tanks for domestic water heaters are...

    Expansion tanks for domestic water heaters are always installed on the cold inlet. :yes:
  31. Replies
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    I agree 100% with everything you said. Code...

    I agree 100% with everything you said. Code compliant or not, a dirt leg in that orientation is not as effective as a dirt leg on the bottom of a vertical gas line drop, period. Cutting the cord...
  32. Replies
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    Um, why do you think that? Because it suits your...

    Um, why do you think that? Because it suits your needs for this conversation? :angel: I believe they are talking about thermal efficiency.
  33. Replies
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    This is going right down the road of the 38 page...

    This is going right down the road of the 38 page debates of multi-stage furnace efficiency in first stage! :rolleyes:

    Two things:

    1) the heat exchanger is not a flat plate that you can simply...
  34. Replies
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    Ah, now we're getting somewhere, I see what you...

    Ah, now we're getting somewhere, I see what you were getting to. Yes, I fully agree that this set-up (which is very typical) forces the IDW pump to overcome the head of both the boiler and the water...
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    Not always true - in fact, niether of us is...

    Not always true - in fact, niether of us is probably always right. I have seen effieciency curves (Aerco has this pretty well documented) that demonstrate a higher thermal efficiency at partial...
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    Very nice!

    Very nice!
  37. Replies
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    I love mod cons for EVERY terminal unit type. ...

    I love mod cons for EVERY terminal unit type. Yes, the two main house zones are low mass fin tube. Using the outdoor reset means they get very low water temp for most of the heating season, works...
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    Yes, and there is a threaded rod and split ring...

    Yes, and there is a threaded rod and split ring coming down from the floor joist a few inches away from the last 90, can be seen in pic two.



    No. :cheers:
  39. Replies
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    What Shophound said, and YES more insulation on...

    What Shophound said, and YES more insulation on the attic floor will almost certainly help. If it's like most attics, it's a huge greenhouse that gets stupid hot form the solar gains form the roof. ...
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    I agree with what most have already said, he...

    I agree with what most have already said, he knows his stuff, but HVAC is definitely not his strong suit. He brings in people that know their trade when appropriate.
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    From the looks of it, I bet the electrician would...

    From the looks of it, I bet the electrician would have used Romex. I think our friendly HVAC installer used the MC cable? :cheers:

    If you use hard conduit that is all good, but then you need to...
  42. Replies
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    Just curious, where is the electric meter? ...

    Just curious, where is the electric meter?

    Your work looks great!
  43. Replies
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    Not gunna happen with a type I hood.

    Not gunna happen with a type I hood.
  44. Replies
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    Is this thing still being used?!

    Is this thing still being used?!
  45. Replies
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    It does look great, nice work. Jeesh, somebody...

    It does look great, nice work.

    Jeesh, somebody aughta sell them a chiller - all those air cooled splits! :eek2: :grin2:
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    Pretty clever - I like how you did that. ...

    Pretty clever - I like how you did that.

    Depending on how long the circuits are (read- if they are very long and/or high head) - using the run or bull of the Tees won't effect flow in one circuit...
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    I think there are circuit setters, moot point if...

    I think there are circuit setters, moot point if so...
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    Yeah I agree. The stars can always align in...

    Yeah I agree.

    The stars can always align in some cockamaney way to have an issue. At some point you have to have an ounce of faith. Putting a stop valve in front of the expansion tank and...
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    Exactly. But removing the handle goes a loooong...

    Exactly. But removing the handle goes a loooong way to preventing this or any similar scenario.
  50. Replies
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    lol no no downgrade accepted. :yes:

    lol no no downgrade accepted. :yes:
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