Category Archives: environment

environment

Noise protection of air heat pumps should be planned carefully

noise protection

an air heat pump could be noisy

Increasingly, people are annoyed by ugly noises of air heat pumps in the neighbor’s garden. Who pays when purchasing these devices only on efficiency and price, jumped too short. Especially it brings residents to the palm when the air source heat pump is directly on the plot. Here, an important shift is already possible in the preselection of the manufactured product: the sound power level gives information about the volume of the device. In practice spans 15 to 20 dB (A) are possible – the aim should be SPL of less than 50 dB (A). This figure must specify in its technical description of the device manufacturer. Continue reading

Fracking concerns us all

hydraulic-fracturing

hydraulic-fracturing

Shocked most viewers showed after the broadcast of the film “Gasland” last Tuesday at Arte TV. This is in any case clear from the comments on the eighty-Arte blog. The film from 2010 tells how high standards of environmental were repealed by lobbying in the United States. Then the way was clear for the gas companies. The hydraulic fracturing method attempts using large amounts of water, sand and chemicals extract natural gas from shale rock at great depth to pump, purify and bring into the gas grid. The chemically contaminated residual water must be disposed of. The fracking industry is in the chance of an independent international energy and job creation. “The energy belongs to us”, is the motto of the industry lobby. Continue reading