ᐅ Operating Cost Statement for Heat Pump in a Secondary Apartment
Created on: 29 Apr 2019 13:11
T
titoz
Hello everyone,
I urgently need your input.
We have a single-family house with a granny flat (secondary apartment), which is rented out.
Heating and cooling are provided by a Nibe F1145PC (geothermal system).
We have the following meters:
- "regular" electricity (total)
- "regular" electricity (granny flat)
- total electricity for the heat pump
- cold water (total)
- cold water for the granny flat
- hot water for the granny flat
- heating, compressor only (from the heat pump)
- domestic hot water, compressor only (from the heat pump)
- heat, including internal auxiliary heating (electric heating element in the heat pump)
- domestic hot water, including internal auxiliary heating (from the heat pump)
- heat meter before the underfloor heating of the granny flat
Sorry, I just can’t make sense of this.
How can I simply but fairly calculate the utility costs in the future?
I was advised that everything could be legally disputed except for the allocation of the heat pump electricity costs based on the living area.
The problem seems to be the energy recovery, the cooling, and the varying efficiency of the heat pump depending on the brine temperature.
I’m also wondering how passive cooling is measured. How is that accounted for?
The installer says he has no experience with heat pumps.
Nibe customer service told me to contact Nibe directly.
Nibe themselves say they can’t provide any information on this.
So now what?
I’m grateful for any advice.
Best regards,
Tito
I urgently need your input.
We have a single-family house with a granny flat (secondary apartment), which is rented out.
Heating and cooling are provided by a Nibe F1145PC (geothermal system).
We have the following meters:
- "regular" electricity (total)
- "regular" electricity (granny flat)
- total electricity for the heat pump
- cold water (total)
- cold water for the granny flat
- hot water for the granny flat
- heating, compressor only (from the heat pump)
- domestic hot water, compressor only (from the heat pump)
- heat, including internal auxiliary heating (electric heating element in the heat pump)
- domestic hot water, including internal auxiliary heating (from the heat pump)
- heat meter before the underfloor heating of the granny flat
Sorry, I just can’t make sense of this.
How can I simply but fairly calculate the utility costs in the future?
I was advised that everything could be legally disputed except for the allocation of the heat pump electricity costs based on the living area.
The problem seems to be the energy recovery, the cooling, and the varying efficiency of the heat pump depending on the brine temperature.
I’m also wondering how passive cooling is measured. How is that accounted for?
The installer says he has no experience with heat pumps.
Nibe customer service told me to contact Nibe directly.
Nibe themselves say they can’t provide any information on this.
So now what?
I’m grateful for any advice.
Best regards,
Tito
H
hampshire30 Apr 2019 18:04titoz schrieb:
- Which area should I use? The covered living area only, or should terraces also be included, which count as 25-50% of the living area? That would be really unfortunate for me, since I have a 100 m² (1,076 sq ft) rooftop terrace above the granny flat and the garage.The area for the tenant should be based on the lease agreement. Calculate the total area using the same method as the area stated in the lease agreement. That way, the proportions will be consistent.