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Air Source Heat pump or mini-split efficiency

Greetings everyone!     I have a technical questions I hope I could get some feedback! I understood that air source heat pumps are very ef…

Started by Luis Hernandez in General ForumLatest Reply

Air sealing wood-burning fireplace from the crawlspace below

Hi, I'm looking for some advice on air sealing the around the mantle of a fireplace in the crawlspace. Should I just apply spray foam as ne…

Started by Blake Shurtz in General ForumLatest Reply

Affordability & Deep Energy Upgrade/Passive House Retrofit in Berkeley, California.

We have a small 1940s single level house (1005sqf) in Berkeley, California that is in need of a deep energy upgrade. Our plans include maki…

Started by Kaushal Bharath Raju in General ForumLatest Reply

Discussions Replies Latest Activity

Affordability & Deep Energy Upgrade/Passive House Retrofit in Berkeley, California.

We have a small 1940s single level house (1005sqf) in Berkeley, California that is in need of a deep energy upgrade. Our plans include maki…

Started by Kaushal Bharath Raju in General Forum

26 1 hour ago
Reply by Kaushal Bharath Raju

CAZ Depressurization: NOT a Big Deal?

http://greendreamgroup.libsyn.com/this-house-sucks-but-not-very-hard-brett-singer-scientist-shows-us-where-depressurization-testing-has-led

Started by Corbett Lunsford in General Forum

19 on Tuesday
Reply by Glen Gallo

Air Source Heat pump or mini-split efficiency

Greetings everyone!     I have a technical questions I hope I could get some feedback! I understood that air source heat pumps are very ef…

Started by Luis Hernandez in General Forum

0 Apr 18

Air sealing wood-burning fireplace from the crawlspace below

Hi, I'm looking for some advice on air sealing the around the mantle of a fireplace in the crawlspace. Should I just apply spray foam as ne…

Started by Blake Shurtz in General Forum

1 Apr 17
Reply by David Baerg

Best practice recommendations for this vaulted ceiling?

Hello energy pros, Some relatives of mine recently purchased this 1917 house in Northern California and, as the family member who does "th…

Started by Griffin Hagle in Best Practices

12 Apr 14
Reply by Griffin Hagle

Heat loss from ducts

Hey there Home Energy Pros, How do you calculate whole home heat loss from the ducts?  To put this in context, I know how to calculate heat…

Started by George Kopf in RESNET Modeling & Rating

11 Apr 14
Reply by John Proctor

Residential Green Valuation Tools

Residential Green Valuation Tools Appraisal Institute just announced its latest new book on valuing residential high performance properties…

Started by Sandra K. Adomatis, SRA in General Forum

0 Apr 13

Tankless Water Heaters... has their time finally come?

For decades tankless water heaters haven't been worth the effort to install due to our artificially low cost of natural gas in the USA and…

Started by Bob Blanchette in General Forum

0 Apr 13

High Density Foam -- Any Incidents of Cracking in Frame Walls as Studs Dry/Twist?

Just had a convo with a cold climate builder who said he has had concerns about the viability of the continuity of the air/vapour barrier c…

Started by Shawna Henderson in General Forum

2 Apr 11
Reply by Sean Lintow Sr

Insulation Blower Recommendations?

Does anyone have any recommendations for a residential insulation blower?  We currently use an InsulMaxx 5000, and we've been pretty happy,…

Started by Jim Conlon in General Forum

0 Apr 10

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Kaushal Bharath Raju replied to Kaushal Bharath Raju's discussion Affordability & Deep Energy Upgrade/Passive House Retrofit in Berkeley, California.
"Thanks Chie! We have this event in our calender."
1 hour ago
Kaushal Bharath Raju replied to Kaushal Bharath Raju's discussion Affordability & Deep Energy Upgrade/Passive House Retrofit in Berkeley, California.
"Hi Alice; I tried sending you an e-mail but the message bounced. Can you kindly verify your e-mail…"
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Chie Kawahara replied to Kaushal Bharath Raju's discussion Affordability & Deep Energy Upgrade/Passive House Retrofit in Berkeley, California.
"Hi Kaushal, Thousand Home Challenge is a wonderful forum and the resource collection is…"
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Alice La Pierre replied to Kaushal Bharath Raju's discussion Affordability & Deep Energy Upgrade/Passive House Retrofit in Berkeley, California.
"Hello Kaushal, While it's true I did some of the finish work myself, I also acted as my own…"
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Kaushal Bharath Raju replied to Kaushal Bharath Raju's discussion Affordability & Deep Energy Upgrade/Passive House Retrofit in Berkeley, California.
"Thank you Linda for your response; and your generosity in sharing your suggestion and hope. I…"
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Kaushal Bharath Raju replied to Kaushal Bharath Raju's discussion Affordability & Deep Energy Upgrade/Passive House Retrofit in Berkeley, California.
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