Recent Q&A

• Does anybody want to buy 2 UltimateAir 200DX ERVs for parts?

  As I'm sure everyone here is aware UltimateAir have gone out of business and they have not been honoring their 2 year warranty. I bought these units to go in…

• Recommendation for CO2 Monitor

  Can anybody recommend a good indoor air quality monitor? I'm primarily interested in measuring the CO2 levels in my bedrooms to make sure my ERV is bringing in enough fresh…

• Melting EPS Foam with EIFS Synthetic Stucco

  Our EIFS synthetic stucco has been loosing its flatness. See the attached pictures. It has now happened 2 summers in a row. the same thing happened last year and the…

• Suggested replacement ERV for UltimateAir DX200?

  I've been having loads of problems with my 200cfm UltimateAir DX200 in my new construction. I think most problems stem from the fact that my builder was running the ERV…

• Variable Makeup Air by Fantech with Best Range Vent Hood Issues – Need Circuit Diagram?

  I've got an interesting problem with my Fantech MUAS 750 Makeup Air System hooked up to the Best vent Hood Model CC34IQSB (Links to the products at the end).The hood…

• UltimateAir Company Status

  Has anybody been able to contact UltimateAir since the beginning of the Covid pandemic? I've been trying to contact them for 6 months. I've left voice messages, emails and used…

• Ultimate Air 200DX very noisy

  Nearing the end of my build and finally fired up the Ultimate Air 200DX and boy is it loud. It sounds like a jet engine going off in my house.Here…

• How much gap for first course of siding?

  Climate zone 6b. 3" exterior polyiso foam, protected by tyvek on the outside of the foam, then a rain screen gap to the boral shiplap siding.I'm wondering how much gap…

• Recommendation for wifi programmable thermostats?

  Can anybody recommend a thermostat that can be accessed remotely from a cell phone/ computer? I don't want a nest or ecobee style because I'll never use any if the…

• Air sealing – shadow reveal no base

  New build, climate 6b, pretty good home. Targeting less than 1.5 ACH from a belt and suspenders air tight sheathing and air tight dry wall approach. My wife has decided she…