Blog
We have just about reached occupancy in our new build, next week. We have a Mitsu City Multi ASHP (PUMY-P42NKMU2 with 2x PVFY series AHUs). Cold climate, I think we’re CZ6. We have heat strips on both air handlers. I’m trying to learn how to adjust the settings a tiny bit… We have PAR-40MAAU controllers. […]
Demand for food is surging, with projections indicating that crop production must nearly double by 2050 to sustain the global population. Chemical crop inputs such as pesticides, fertilizers, and biostimulants drive efficiency in crop production by improving plant nutrition and providing protection against pests and diseases. These inputs have historically advanced agricultural productivity. But pests […]
The Prime Minister visits Siemens Industry 4.0 Innovation Center in the new administrative capital ZAWYA
Does the U.S. have an energy crisis? According to at least one source, yes. On January 20, minutes removed from Donald Trump taking the oath of office, the White House released an executive order declaring a “National Energy Emergency.” “The energy and critical minerals identification, leasing, development, production, transportation, refining, and generation capacity of the […]
I’m in the process of building a house in a high fire zone (California SF Bay Area). In order to achieve this the goal is to remove all soffit vents and use a metal roof. Since I lack soffit vents, I was planning on doing a hot roof, with 2″ of spray foam, followed by […]
I have radon in my house, my radon fan runs all year long to keep the radon at safe levels. The air that comes out of my radon system exhaust is 52.7F at 40% RH in the winter. The exhaust is 4″ in diameter and the airspeed is 1,300 Ft/min which if I am calculating […]