Switchboard for the heat management
Original from 1984, this switchboard controlls the heatpump, the 2 earth collectors and the heat collector on the roof.  

Switchboard for the heat management

Original from 1984, this switchboard controlls the heatpump, the 2 earth collectors and the heat collector on the roof.

I worked 1984 with an hp computer with 78 KB RAM and 15 MB harddisk. My VW Passat at this time was with 925 kg total low weight construciton. but the low weight did not stop the car to consume 11 litres for 100km.

But here is a piece of technic from 1984 which is better, than many heating systems built later.


  Heat of earth


Not only take but also give is the newest trend at heat of earth usage. We document this in the view of a company building from 1984.

Heating costs
Your house of apartment is built past 1984? In most cases, You will see, this company building from 1984 has less heating costs per squaremeter.


Company building Company building
Built 1984 with 24 m² heat collectors on the roof. 2005 had been 153 m² photovoltaic with 21.65 kW peak added. The estimeated yearly yield was 20500 kWh, 2007 was the yield 22400 kWh.


Heat collectors Heat collectors
Full with water collector system. For warming up the earth collector is also a low temperature enough. Sometimes also without sun, when the air is warm enough.


Earth-collector Earth-collector
Take not only heat, give also heat. The earth collector as a low temperature saisonal storage. Heat from the 24 m² solar collector on the roof heat up the earth collector.


Heat pump Siemens SA 30 P Heat pump Siemens SA 30 P
In front of the company building outside is this 29 kW heat pump. At a heat pump, each degree Celsius teperature difference is important.


Floor heating Floor heating
Floor heating is not equal to floot heating. A very uniform distribution of the heat makes a very low input temperature possible. Less electric power demand at the heat pump.


Climate controll by the floor Climate controll by the floor
The conference room has a large window to the south side. When the sun shines into the room, the floor is direct heated up. A floor heating can take away the heat.




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