Due to budget limitations, I am considering leaving the 2nd floor and basement unfinished rather than cheap out on the house shell. The builder I am working with is advising…
My rater used REM/Rate modeling software to model my future net zero house and help choosing the insulation. He concluded that with the current cost of solar panels the most…
I did not find much about the Blauberg ERV but the KOMFORT EC S seems an excellent product that competes and in some case exceeds the performance of Zehnder Q600. https://blauberg-na.com/wp-content/uploads/Catalog_KOMFORT_EC_S5B-D5B-S.pdfMax…
I am completing the design of a new house in zone 4a. I received a design and quote from Zehnder for a energy recovery ventilation system. Total cost of the…
I contacted an energy rate consultant to help my builder increasing the energy efficiency of my new house and reach DOE net zero ready performance. The energy rater advised to…
Which wall/insulation makes most sense in a Mixed–Humid Climate (Zone 4A)? Building a pretty good house and aiming to net-zero with solar panels (to be installed later). I am sure…
Hello, for my new future house in Climate Zone 4a (zip 20817), both my builder and architect suggested to install a gas furnace in the basement with heat pump and…
Recent Q&A
Unfinished Spaces for Improved Building Envelope
Due to budget limitations, I am considering leaving the 2nd floor and basement unfinished rather than cheap out on the house shell. The builder I am working with is advising…
Pretty Good House R-Values
My rater used REM/Rate modeling software to model my future net zero house and help choosing the insulation. He concluded that with the current cost of solar panels the most…
Interesting ERV: Blauberg Komfort EC S
I did not find much about the Blauberg ERV but the KOMFORT EC S seems an excellent product that competes and in some case exceeds the performance of Zehnder Q600. https://blauberg-na.com/wp-content/uploads/Catalog_KOMFORT_EC_S5B-D5B-S.pdfMax…
Ducting and ERV
I am completing the design of a new house in zone 4a. I received a design and quote from Zehnder for a energy recovery ventilation system. Total cost of the…
Manual vs electronic zoning
I contacted an energy rate consultant to help my builder increasing the energy efficiency of my new house and reach DOE net zero ready performance. The energy rater advised to…
Wall Insulation for a Mixed-Humid Climate
Which wall/insulation makes most sense in a Mixed–Humid Climate (Zone 4A)? Building a pretty good house and aiming to net-zero with solar panels (to be installed later). I am sure…
Designing a Roof for Solar Panels
OK so I finally have a floor plan for my new house in Bethesda MD. Architect came up with a complex roof (praire roof style) which I believe is one…
Choosing an HVAC System for a Cold Climate
Hello, for my new future house in Climate Zone 4a (zip 20817), both my builder and architect suggested to install a gas furnace in the basement with heat pump and…
Indoor Pizza Oven
Hello, I am completely new to passive house concept and I am in the process of building my new house in the DC area. I have 2 questions: 1. Would…