Luis Hernandez
  • Rhinebeck, NY
  • United States
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ERV Configuration

Started this discussion. Last reply by Rich Manning Sep 19. 21 Replies

Greetings everyone,     I did an energy audit on this new home that is too tight and needs mechanical ventilation, so I thought to tell them to get an ERV installation, but then I realized that they…Continue

Vapor Barrier on top of basement concrete floor

Started this discussion. Last reply by Brad Cook Jan 14. 8 Replies

Happy New Year!   Hoping this will be a great year for all of us to help our communities to save even more energy than ever before!   I have a project on a small house built early 30's, two floors…Continue

Airsealing an old basement ceiling

Started this discussion. Last reply by Ed Minch May 26. 16 Replies

Greetings everyone,    I have a weird question... On a non conditioned basement, many times I find tongue in groove pine strips on ceiling of basements and then a second layer of wood as the finish…Continue

I am searching for study material

Started this discussion. Last reply by Luis Hernandez Oct 19, 2015. 11 Replies

Greetings everyone,    I will be taking the AC /heat pump BPI class in November and I am in search for study material to prepared me for the class. When searching online all you get are class…Continue

Tags: certification, BPI, pump, /heat, AC

 

Luis Hernandez's Page

Latest Activity

Rich Manning replied to Luis Hernandez's discussion ERV Configuration
"Luis, I would install a balanced ERV. You need to exhaust the bathroom and kitchen to ASHRAE 62.2 and install supply to the bedrooms and other living areas. Yes it would be an independent system with duct work, and you would need to get creative on…"
Sep 19
Luis Hernandez replied to Luis Hernandez's discussion ERV Configuration
"Yes do do cook and the stove is a gigantic Viking commercial stove! There is no AC on this house, but I still agree with you Sean, it should be a balance unit."
Sep 19
Luis Hernandez replied to Luis Hernandez's discussion ERV Configuration
"In my humble opinion I think the inspector got fooled because he saw fans... there are just not venting to the outside! What makes things worse is that the house is too tight so there needs to be mechanical ventilation as well!"
Sep 19
Rich Manning replied to Luis Hernandez's discussion ERV Configuration
"How is it possible that there is NO ventilation in this house. How could it have it passed a final inspection by the building dept.! This is crazy!!"
Sep 19
Sean Lintow Sr replied to Luis Hernandez's discussion ERV Configuration
"So why go balanced instead of exhaust only? Well you might want to review the piece I linked to at the start & then also the one by William Nickerson above. One big thing to remember is location - you don't want to be pulling hot humid air…"
Sep 18
Kent Browning replied to Luis Hernandez's discussion ERV Configuration
"Rather than recommend an ERV, how about some thru wall exhaust fan(s) in the bath room(s)? Put them on timers so they don't run all the time. That kitchen fan REALLY needs to exhaust outside.  I would make that a higher priority than the…"
Sep 15
Luis Hernandez's discussion was featured

ERV Configuration

Greetings everyone,     I did an energy audit on this new home that is too tight and needs mechanical ventilation, so I thought to tell them to get an ERV installation, but then I realized that they are heating with radiant floor heating, so there is no ductwork at all and to make things more complicated, there is no attic.  To make things even more complicated, the bathrooms does not have fans, and the kitchen fan does not exhaust to outside... so I was thinking that because there is no attic,…See More
Aug 29
Luke Langhals replied to Luis Hernandez's discussion ERV Configuration
"Very good reading. Thank you for posting this."
Aug 25
tedkidd replied to Luis Hernandez's discussion ERV Configuration
"Green Grass (wet) climates - not Arizona. A ventilating dehumidifier and positive pressure strategy will provide drying potential to homes in moist climates, helping avoid mold and other long term moisture related problems. VOC off gassing is lower…"
Aug 18
William H Nickerson replied to Luis Hernandez's discussion ERV Configuration
"Good reading  …"
Aug 15
Sean Lintow Sr replied to Luis Hernandez's discussion ERV Configuration
"Just a few thoughts & I am basing this on dedicated exhausts with an E/HRV (that may or may not be running at the time) also being used. Let me also state that like many things it depends, sure one model might have, or I saw a house…"
Aug 13
Luke Langhals replied to Luis Hernandez's discussion ERV Configuration
"To give my argument for Exhaust Only vs ERV: The exhaust only fans generally installed in bathrooms/kitchen are going to depressurize the home, remove conditioned air, and provide no filtration on entering air. By depressurizing the residence, the…"
Aug 11
Sean Lintow Sr replied to Luis Hernandez's discussion ERV Configuration
"Sorry but I got to disagree - exhaust from a bath (and kitchens) should go out through a dedicated exhaust fan & definitely not an ERV which utilizes a shared core. I still feel the same about an HRV even with separate air streams just…"
Aug 11
Luke Langhals replied to Luis Hernandez's discussion ERV Configuration
"My general recommendation would be 4" duct branches running to each bathroom. From a main trunk to the ERV unit. Each exhaust register should run continuously at 25 cfm or 50 cfm intermittently. Fresh air would be directed in a similar duct…"
Aug 8
Luis Hernandez replied to Luis Hernandez's discussion ERV Configuration
"Grass climate? Not sure what that is, but I just realize I should had mentioned this house is in the Northeast area. Any suggestions on what to use for data logging? I just suggested that to the homeowners to do now (before winter arrives) in order…"
Aug 3
Luis Hernandez replied to Luis Hernandez's discussion ERV Configuration
"Hey Chris,   This looks amazing, now it seems that they do not have a filter at all... Is that correct? I know there is plenty of discussion about filters been an issue since now the homeowners needs to clean them, but I think the burden of…"
Aug 3

Profile Information

Company
Gaia Sharbel Energy Contracting
Professional Certification
BPI AP, BPI EP, cSBA, IEEE
Professional Interests
Solar passive, sustainable, renewable energy solutions, Energy Star, Energy Audits
Website URL
http://www.loweryourenergynow.com
LinkedIn Profile
www.linkedin.com/pub/luis-hernandez/6/859/9b0/

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At 3:21pm on August 15, 2013, Diane Chojnowski said…

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