Recent Q&A

• Domestic hot water heat recovery: Two systems or one?

  We have a large footprint house with multiple bathrooms. The Power-Pipe product seems to be an excellent way of recovering shower waste heat. The question is how to deal with…

• Wall detail for exterior foam and … (wait for it) … SHINGLES

  We're in the process of building a home in MA and committed to external foam on walls and roofs There's a ton of great detail here on exterior foam and…

• Minisplit controls?

  I'm planning a ducted minisplit system for our renovated large house. It will be 4 floors (inc basement and cathedral attic) but likely 6+ zones given the size of the…

• NanaWall……$$$….Marvin $$$? / Panoramic Door$?

  I've been looking at a configuration for a 12' wide opening that we'd like to make into a glass wall. Nana is the brand everyone is familiar with but preliminary…

• Pretty Good Historic Double Hung….

  We're doing a DER on a house in a historic district and tying to balance performance with aesthetic appeal that will be tolerated by the local historic commission. This is…

• Sealed wood burning stoves – a list? (for a TIGHT house)

  I've been looking through this site and found some helpful information and also spent time on the web (to no avail) Does anyone have a source or 'list' of sealed…

• Modified Mooney Wall (SPF)?

  Is there a way of achieving exterior foam board performance without the faming hassle by using a modified mooney wall? The challenge of closed cell foam sprayed into interior cavities…

• 重用历史做uble hung-windows with exterior foam?

  We've a house in Cambridge, MA which will need total renovation (close to needing demolition!) The house will need re-siding and windows will need refurbishment (original 6 over 1 double…