GBA Logo horizontal Facebook LinkedIn Email Pinterest Twitter Instagram YouTube Icon Navigation Search Icon Main Search Icon Video Play Icon Plus Icon Minus Icon Picture icon Hamburger Icon Close Icon Sorted

Community and Q&A

Better Built NW HVAC Sizing Tool

4khz | Posted in Energy Efficiency and Durability on

I’m having an issue where when entering an override for the ceiling u-value, the program doesn’t calculate the updated heating load. The best I can do is to set the default insulation value to “passive”, for example – which the default ceiling R-value = R55. (I have R50) – and then derate walls and ACH winter infiltration, which does recalculate. 

Does anyone have this issue ? 

Otherwise, as an owner builder, I really like the program

GBA Prime

Join the leading community of building science experts

Become a GBA Prime member and get instant access to the latest developments in green building, research, and reports from the field.

Replies

Log in or create an account to post an answer.

Community

Recent Questions and Replies

  • |
  • |
  • |
  • |