ᐅ Installation of the Brine-to-Water Heat Pump? 2 Options, Impact on the COP?

Hi everyone,

We originally planned to install an air-to-water heat pump (floor plan is finalized), but now we are considering a ground-source heat pump instead. We are designing a two-family house without a basement. The air-to-water heat pump was supposed to be installed in the utility room on the ground floor at the front of the house facing the street, as the outdoor unit would be placed there. However, if we can install a ground probe (borehole) in the backyard, we could put the ground-source heat pump in the rear workshop of the garage.

So, theoretically, we have two possible installation options for the ground-source heat pump.

Longer piping from the probe to the heat pump if the heat pump is installed at the front of the house in the utility room on the ground floor, resulting in shorter piping going to the underfloor heating system.

Or

Shorter piping from the probe to the heat pump if the heat pump is installed in the workshop at the rear of the garage, which would mean longer piping to the underfloor heating system.

I wonder if the second option would have a significant impact on the heat pump’s coefficient of performance (COP). Are there any guidelines regarding this?

I would greatly appreciate your opinions, advice, tips, and experiences.

Best regards

Hello,
Is this a detached garage? Is it even allowed to install the heat pump/heating system in there?
Regards

Daniel-Sp schrieb:

Hello,
Is this a detached garage? Is it even allowed to have the heat pump/heating system installed there?
Regards

Hello, it is a partially integrated garage.
During the planning phase with the architect, this was briefly considered.