…….the housing association HSB in Stockholm used a combination of the supply and extract balanced ventilation units with heat recovery together with ground source preheating to reduce their CO2 footprint by 50%. Top up heating is no longer required on really cold days.
- May 26, 2014
…replacing supply air filters had no effect on performance of children? But increasing the outdoor air supply rate did have an effect, so pollutants must originate indoors. Author David P. Wyon
- May 23, 2014
…doubling of the ventilation rate can increase the performance by 14.5%? Yet, if the air supply rate would be increased from 2.5-5 l/s to 10 l/s the performance of schoolwork would increase by 20%. Author…
- January 23, 2015
………..the unit used understanding how clothing insulates the human body is clo. A naked person’s clo is 0 and indoor clothing during winter is 1.
- January 13, 2015
Residual value: “Based on a sample of sale prices for 559 Energy Star- and 127 LEED-certified buildings, we find price premia of 26% and 25%, respectively with higher levels of certification achieving higher premia.” (Fuerst,…
- January 29, 2015
Energy Star-labeled and LEED-certified properties sell at premiums of $30 to $129/ft2 compared to comparable properties. (Wiley, 2010) Other information can be found here (link). Image by U.S. Green Building Council
- January 9, 2015
Buildings with a “green rating” command rental rates that are roughly 3% higher per square foot than otherwise identical buildings. Premiums in effective rents are even higher – above 7%. (Eichholtz & Kok, 2010) Other…