Jon LaMonte
  • Woodstock, GA
  • United States
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Duct Sealing Spray From the Inside
11 Replies

I had a call from a customer asking me if we sealed ducts.  He was watching This Old House on TV and the contractors were using equipment that sealed the ducts from the inside.  They stated that this…Continue

Tags: HVAC, Sealing, Duct

Started this discussion. Last reply by Evan Mills Feb 28, 2011.

Any Experience with Radiant Barrier Bubble Wrap
7 Replies

I wanted to know if anyone had any experiences using the bubble wrap w/ the double sided radiant barrier.I had a weird experience thanks to a fire pit, my Brother-in-Law, and a few beers.  My…Continue

Tags: heat, transfer, walls, knee, bubble

Started this discussion. Last reply by Guy DuBois Feb 13, 2011.

Are Zoned Heating/Cooling Systems a Good Idea or a Bad Idea?
23 Replies

For starters, I live in Atlanta, Ga and I am not an HVAC pro so this is a serious question that I would like answered for one of my clients.  I understand the premise of a zoned system and on the…Continue

Started this discussion. Last reply by George W. Reynolds Jan 17, 2012.

 

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Are Zoned Heating/Cooling Systems a Good or Bad Idea?

For starters, I live in Atlanta, Ga and I am not an HVAC pro so this is a serious question that I would like answered for one of my clients.  I understand the premise of a zoned system and on the surface, it sounds like a good idea. Then I considered the fact that I have always told my customers that it is a bad idea to close off vents in rooms they are not in because of duct leakage.  Also, the second law of thermodynamics simply states the hot goes to cold, so now the unheated areas are doing…See More
Jul 7
John Proctor replied to Jon LaMonte's discussion Are Zoned Heating/Cooling Systems a Good or Bad Idea? in the group HVAC
"Tim, You are welcome. I think what the others' responses were focused on is the concept that the AC should cool down the house in a few minutes from a hot soak. A well designed and installed system will make a dent, but it can't pull it…"
Jul 5
Tim Thornton replied to Jon LaMonte's discussion Are Zoned Heating/Cooling Systems a Good or Bad Idea? in the group HVAC
"Thanks, John. That is VERY helpful and straight forward. So, net-net, it is possible to do virtually anything with an AC systems that is very carefully designed and implemented, which is not very likely in mass production and clearly did not happen…"
Jul 5
John Proctor replied to Jon LaMonte's discussion Are Zoned Heating/Cooling Systems a Good or Bad Idea? in the group HVAC
"Tim, in answer to your questions: 1) Can a 4 ton system with long duct runs cool 2 floors at the same time? a) a 4 ton system that is working properly CAN COOL a well designed and built 2 story house with a floor area of 3100 sq ft. Rick…"
Jul 4
Tim Thornton replied to Jon LaMonte's discussion Are Zoned Heating/Cooling Systems a Good or Bad Idea? in the group HVAC
"Thanks, John. My client is a mechanical engineer and he ran the numbers. As it turns out, I suppose this is something that Mechanical Engineers do study in school. He ran the most conservative calculations and compared them to the air flow data that…"
Jul 4
Bob Blanchette replied to Jon LaMonte's discussion Are Zoned Heating/Cooling Systems a Good or Bad Idea? in the group HVAC
"But it's so much easier to size by the 500sqft per ton rule that's been used for decades. Seriously, how many houses have you seen that DIDNT use the 500sft per rule for sizing? Most will be 400-600sqft per ton. Newer homes just allow more…"
Jul 4
Tim Thornton replied to Jon LaMonte's discussion Are Zoned Heating/Cooling Systems a Good or Bad Idea? in the group HVAC
"Yep. We have the leak test data and the air flow data and timed temperature data. Sorry. I did not know I had to send you the reports, boss. Clearly, you are the arbitrator of all things HVAC. I guess that is why I am a Realtor and you are someone…"
Jul 4
John Proctor replied to Jon LaMonte's discussion Are Zoned Heating/Cooling Systems a Good or Bad Idea? in the group HVAC
" T. Thornton: Dear T. There are multiple items in your comment that bear some response. First is the zoning issue. I strongly suspect that the reason the house is not getting cooled per your criteria is that the AC is actually delivering way…"
Jul 3
Tim Thornton replied to Jon LaMonte's discussion Are Zoned Heating/Cooling Systems a Good or Bad Idea? in the group HVAC
"I don't know what  flat earth assumption is, but Realtors have to work with builders and builders are known for their "black box" designs. "Trust me; it works." No proof. Just trust and promises. As for your side of the…"
Jul 3
tedkidd replied to Jon LaMonte's discussion Are Zoned Heating/Cooling Systems a Good or Bad Idea? in the group HVAC
"The problem isn't just the builder.  Everyone here has some flat earth "conventional wisdom" assumptions that are pure superstitious beliefs.     A big problem is your perception of how AC should perform, and complete…"
Jul 3
Tim Thornton replied to Jon LaMonte's discussion Are Zoned Heating/Cooling Systems a Good or Bad Idea? in the group HVAC
"Here is my 2014 experience with a zoned system, a prominent national builder and a client/buyer. This builder put in a dual zoned (single unit) AC system on a home. 4 ton AC system to support a 3100 sf house and the system is not cooling the house…"
Jul 2
Bob Blanchette replied to Jon LaMonte's discussion Are Zoned Heating/Cooling Systems a Good or Bad Idea? in the group HVAC
"Overheating of the 2nd floor/Over-cooling the 1st floor is a valid concern with a zoned or 2 separate systems. The systems could be designed to "swap returns", the upstairs system gets it's return air from downstairs and downstairs…"
Dec 29, 2012
Chris Heenan replied to Jon LaMonte's discussion Are Zoned Heating/Cooling Systems a Good or Bad Idea? in the group HVAC
"In the winter, I'd like to recapture the heat lost from the first floor that rises upstairs. A return at the top and bottom helps average the stratification. Even using the "Circ" feature on newer thermostats in a zoned single system…"
Dec 29, 2012
Bob Blanchette replied to Jon LaMonte's discussion Are Zoned Heating/Cooling Systems a Good or Bad Idea? in the group HVAC
"2 systems is normally not much more if any more expensive than a properly designed zone system. Upstairs systems can use options such as heat pumps or air handlers with hot water coils. Even electric strip heat could be an option in areas where…"
Dec 28, 2012
tedkidd replied to Jon LaMonte's discussion Are Zoned Heating/Cooling Systems a Good or Bad Idea? in the group HVAC
"Bypass ducts are beginning to be recognized as a very energy inefficient design and bad practice to be avoided whenever possible.   I see you've just joined Allison's group - I think he might have a blog about this.  "
Sep 27, 2012
Chris Heenan replied to Jon LaMonte's discussion Are Zoned Heating/Cooling Systems a Good or Bad Idea? in the group HVAC
"Zoning has benefits beyond temp control. Most often the home does not require the full 2 stage heat or cooling as the system only needs to satisfy a portion of the home. So, then if 1/2 the heated air goes through a properly sized and balance…"
Sep 27, 2012

Profile Information

Company
Efficient Energy Solutions, LLC
Professional Certification
BPI Building Analyst and RESnet Certified HERS Rater
Professional Interests
Energy Efficiency, Home Performance Contracting, Green Building
Website URL
http://www.theNRGguy.com
Facebook Page
http://www.facebook.com/effcientenergysolutionsllc
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Jon LaMonte

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Jon LaMonte's Blog

How Rising Gasoline Prices can Teach us to Conserve Energy at Home

So the price of gas is hovering near $4.00 a gallon again.  Have you noticed a change in your driving habits?  More people are choosing to stay home over driving long distances for vacation.  They’re also combining trips to multiple locations to get more things done all at once and if they forget to stop at one,…

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Posted on July 25, 2011 at 5:51pm — 1 Comment

Why I Love My Job

We all go through transitions in our lives.  One of the biggest is choosing or changing a profession.  As I mentioned in previous entries, my background for the previous 9 years was doing class action and warranty inspections on residential building products.  This meant I became keenly…

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Posted on April 21, 2011 at 6:47am — 6 Comments

Building Science Proven by the Bug Man



A buddy of mine, Dennis, that’s an exterminator called me the other day while I was standing in Home Depot.  “Jon, I’ve got a problem and I need some of your building science expertise.” The problem he was having was being caused by some granules he had put down to repel some flying squirrels.  The granules…

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Posted on February 21, 2011 at 6:02pm — 2 Comments

Auditors Offering Contracting Services - Conflict of Interest?

This very question was recently posed in the BPI Group.  Is there a conflict of interest when an energy auditor also offers contracting or weatherization services to their clients?  At first glance, many would say that the easy answer is "yes". The common reasoning is that people will steer their clients towards the products they sell in order to make as much money as possible.  After all, that's what we are all in business for, isn't it?  The other answer was "it's just human…

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Posted on January 14, 2011 at 8:35am — 10 Comments

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