Skrivet av: Rickard
« skrivet: 08 juni 2016, 20:55:03 »The IVT offer has a better drilling depth, ask the Nibe Company to make a new offer with 160 meter drilling depth also.
The machines are quite comparable, IVT has got scroll compressor, and Nibe has got "piston compressor" and they have a bit dfifferent characteristics.
The piston compressor looses a bit output at high temperatures, and the scroll compressor does not (as much).
Nibe 8 kW and IVT 7 kW heat pumps deliver approximately the same output power at the coldest day of the year.
This also means the need the same drilling depth to get the same "heat input" from the ground heat source.
With less drilling depth, the COP will get a bit lower.
Nibe 1226 is a quite old construction.
Ivt is a bit more modern, i guess IVT would deliver a bit better COP.
If you ask for an offer of Nibe 1245-8 with 160 m drilling, you would have construction more the same between the 2 manufacturers.
I guess the price would be more alike also...
The machines are quite comparable, IVT has got scroll compressor, and Nibe has got "piston compressor" and they have a bit dfifferent characteristics.
The piston compressor looses a bit output at high temperatures, and the scroll compressor does not (as much).
Nibe 8 kW and IVT 7 kW heat pumps deliver approximately the same output power at the coldest day of the year.
This also means the need the same drilling depth to get the same "heat input" from the ground heat source.
With less drilling depth, the COP will get a bit lower.
Nibe 1226 is a quite old construction.
Ivt is a bit more modern, i guess IVT would deliver a bit better COP.
If you ask for an offer of Nibe 1245-8 with 160 m drilling, you would have construction more the same between the 2 manufacturers.
I guess the price would be more alike also...
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