Igor Zhadanovsky
  • West Newton, MA
  • United States
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Company
AEC
Professional Interests
energy efficiency, steam heating retrofits

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Igor Zhadanovsky's Blog

Steam heating system retrofit in multifamily houses into “vacuum boost” steam heating.

Posted on June 14, 2016 at 8:00am 2 Comments

Problem scale. Significant, untapped opportunities exist to improve the energy efficiency of the nation’s multifamily housing stock, which accounts annually for more than 100 million tons of carbon emissions and approximately $22 billion in energy expenditures [1]. Most multifamily rental properties were constructed before modern building energy codes were adopted, and existing utility incentive and rebate programs often overlook the…

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Retrofit of steam heating systems: new alternative.

Posted on October 22, 2015 at 4:55pm 0 Comments

Since 1850th steam heating system was system of choice in US. In 1920th hot water circulator introduction into market shifted preferences towards hot water heating thanks to drastic reduction of installation cost. In 1960th forced air systems became popular for the same reason.

Today millions of steam heating systems still deliver heat in residential, commercial and industrial buildings. After decades of poor or no…

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Scrutinizing Condensing Boilers With the Second Law of Thermodynamics (SLT)

Posted on May 29, 2013 at 9:31am 15 Comments

“It’s amazing. Every year, we find somebody who comes up with a way of going around the second law (of Thermodynamics) and somehow convinces people who are very smart that it will work.”      MIT lecture on  Thermodynamics and & Kinetics, Spring 2008

 

 

Since the 1980s, hot water condensing boilers (CB) have…

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Bang for the buck: deep-energy retrofit approach

Posted on January 3, 2013 at 1:44pm 32 Comments

"Americans can always be counted on to do the right thing...after they have exhausted all other possibilities."                                                                                                      Winston Churchill

How much does it cost to perform a deep-energy retrofit at a 100-year-old single-family home? Thanks to a recent study in Utica, New York, we now know the answer: about $100,000.…

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At 6:24am on December 19, 2012, Diane Chojnowski said…

Hi Igor,

Welcome to Home Energy Pros! Feel free to join the conversation in the Forum and Groups. And share your energy efficiency photos, videos and upcoming events. If you're blogging about home performance, this is the place for you!

Don't forget to upload your profile photo. And add your location on our Member Map!


Thanks!
Diane, HEP Moderator

 
 
 

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