Saruss
2015-10-23 21:40:36
- #1
Hello,
here I would like to present, among other things following Epis' "Question Catalog," some experiences and values of my brine heat pump and deep drilling:
a) What is the soil composition of your property?
up to 3m silt, fine sandy, clayey (clayey soil)
up to 4m scree slope, rock fragments
then rock (predominantly limestone)
b) How deep was the drilling?
It was drilled 2x72m deep
c) How expensive was the drilling?
€10,400 including double U-probes DN25
grouting material with 2.0 W/mK conductivity
approval process
pressure-tight house entry in the basement and laying the supply line underground (after all 25m)
filling/draining device, filling, pressure test, etc. (so all-inclusive)
d) How expensive was the system?
System: Tecalor TTc 05 with heat output at B0/W35 of 5.8 kW at a performance factor of 4.8
Cost: €9800
e) Were there difficulties in installing the system, if so what kind?
Because the water used during drilling to flush out the drilled material seeped away, a "small compressor" had to be brought in that blew it out with air. However, this was allowed to stand on the neighbor's property, who had not yet started building (the machine was the size of a 20-ton truck, and probably the weight too, but it was all-terrain). This caused a 2-day delay because it first had to be driven to us. No additional costs were charged.
f) How is the handling in everyday use?
"Like a refrigerator." Once the parameters on the heating system are properly set, the only thing you can (should!) do is occasionally read the information/data such as operating time, source temperature. Otherwise, it runs "on its own" like all heating systems. With the door closed, the device is virtually inaudible. Very inconspicuous, since apart from the unit in the utility room, nothing is visible (brine pipes are all underground).
e) What are the costs for which living area?
Currently, a living area of 180 sqm is heated; a further 65 sqm are basement rooms within the insulated building envelope (these are around 15-16 degrees warm on the coldest days). For heating and hot water (2 adults, 1 baby, 1 toddler) from September 2014 to September 2015, 2000 kWh of electricity was consumed. This is a KfW-70 house according to the 2009 Energy Saving Ordinance (which, even without the installed central ventilation system with enthalpy heat exchanger, already had the corresponding system technology value; we decided on this after the initial applications).
f) to be continued ....
Note for the comparison of the performance factor (COP):
The system has so far had a COP of about 5.5 since the optimization of the heating curve and settings at the end of last year. Operating hours are about 1200; the deep drilling was made approximately 20% deeper than suggested by the companies at my own request.
here I would like to present, among other things following Epis' "Question Catalog," some experiences and values of my brine heat pump and deep drilling:
a) What is the soil composition of your property?
up to 3m silt, fine sandy, clayey (clayey soil)
up to 4m scree slope, rock fragments
then rock (predominantly limestone)
b) How deep was the drilling?
It was drilled 2x72m deep
c) How expensive was the drilling?
€10,400 including double U-probes DN25
grouting material with 2.0 W/mK conductivity
approval process
pressure-tight house entry in the basement and laying the supply line underground (after all 25m)
filling/draining device, filling, pressure test, etc. (so all-inclusive)
d) How expensive was the system?
System: Tecalor TTc 05 with heat output at B0/W35 of 5.8 kW at a performance factor of 4.8
Cost: €9800
e) Were there difficulties in installing the system, if so what kind?
Because the water used during drilling to flush out the drilled material seeped away, a "small compressor" had to be brought in that blew it out with air. However, this was allowed to stand on the neighbor's property, who had not yet started building (the machine was the size of a 20-ton truck, and probably the weight too, but it was all-terrain). This caused a 2-day delay because it first had to be driven to us. No additional costs were charged.
f) How is the handling in everyday use?
"Like a refrigerator." Once the parameters on the heating system are properly set, the only thing you can (should!) do is occasionally read the information/data such as operating time, source temperature. Otherwise, it runs "on its own" like all heating systems. With the door closed, the device is virtually inaudible. Very inconspicuous, since apart from the unit in the utility room, nothing is visible (brine pipes are all underground).
e) What are the costs for which living area?
Currently, a living area of 180 sqm is heated; a further 65 sqm are basement rooms within the insulated building envelope (these are around 15-16 degrees warm on the coldest days). For heating and hot water (2 adults, 1 baby, 1 toddler) from September 2014 to September 2015, 2000 kWh of electricity was consumed. This is a KfW-70 house according to the 2009 Energy Saving Ordinance (which, even without the installed central ventilation system with enthalpy heat exchanger, already had the corresponding system technology value; we decided on this after the initial applications).
f) to be continued ....
Note for the comparison of the performance factor (COP):
The system has so far had a COP of about 5.5 since the optimization of the heating curve and settings at the end of last year. Operating hours are about 1200; the deep drilling was made approximately 20% deeper than suggested by the companies at my own request.