Silence is golden

Event 1:

President Obama to Attend Copenhagen Climate Talks:
http://whitehouse.blogs.foxnews.com/2009/11/25/president-obamas-copenhagen-pitch/

Comment> The fact that he is coming is good, but he arrives a week before the other heads of state - and most people had expected much more comittment than CO2 cuts in the range of 17% below 2005 (which equals no more than the 3-4% from the 1990 level). This also well below what IPCC says is required to avoid dramatic climate changes.

Event 2:
The weather here in Norway is really bad these days and the newspapers today included such headlines as "It's raining - but the price of electricity drops". In the same newspapers, the discussions continue on whether or not we should increase the capacity of power cables between Norway and the rest of Europe.

Comment> How can the government expect people to invest in energy saving measures at home (like JAHUS) if the price of electricity keeps falling - rather than to synch with the rest of Europe? If the price came up to its proper level - not only would more people save more energy at home, but the mostly state-owned power companies would make more money that the government could use for incentives that will drive more energy saving projects.

Progress:
The title "silence is golden" was chosen since much of the focus now is on reducing the noice from the ventilation system. When we came home from work today, the system was running on medium effect (normal) - so it seems as though they agree that we need "normal" effect to get the required supply of fresh air.

During the day they have added a noice-trap to reduce the noice in our guestroom (see the attached picture of the noice trap).

Directly in front of the noice trap is something that looks like a valve.

If it is, I think it is a good idea - because I was afraid that the room next to the ventilation room gets much more than it's fair share of the fresh "supply air" (both the noice level and holding your hand up to the outlet gave an impression of much more airflow than in the livingroom upstairs). I guess we'll have to wait for the handover to find out what their plan is...

According to the users guide from the manufacturer of the aggregate there should be noice traps all the piping going in and out of the aggregate - and on the outlet (where the exhaust air is blown out of the house). All these noicetraps are still missing.

I also think they finished the extra loop today. It will provide cool air from the basement to the bedrooms upstairs on hot summer nights (to keep the bedrooms cooler than the rest of the house).

I have created a flowchart that illustrates the flow of air through our ventilation system - and I attached it below for those who are interested. If you have comments or suggestions, please don't hesitate to use the comment input field (at the bottom of this blog).