ᐅ Heat Pump Panasonic Aquarea System Design for Two Buildings
Created on: 9 Aug 2022 15:55
V
Vwgolfcabrio
Hello,
I have a well-insulated house with underfloor heating and 170m² (1830 sq ft). Currently, there is a Weishaupt gas boiler WTC 15 (heating + domestic hot water) in use. The heating load of the house is 5.7 kW. According to the heating load calculation, using the recommended calculator from the forum, it is only 4.5 kW for the house.
The gas boiler serves two consumers. One is the house, and the other heating water consumer is the garage. The garage is connected via a district heating pipe (about 8m (26 feet) long). The garage has three rooms with radiators. The garage should only be kept frost-free.
My annual gas consumption (heating + domestic hot water) is about 9700 kWh.
How could I economically and efficiently integrate the garage into the new heating system?
I am considering the Panasonic Jeisha at 5 or 7 kW.
Thank you
I have a well-insulated house with underfloor heating and 170m² (1830 sq ft). Currently, there is a Weishaupt gas boiler WTC 15 (heating + domestic hot water) in use. The heating load of the house is 5.7 kW. According to the heating load calculation, using the recommended calculator from the forum, it is only 4.5 kW for the house.
The gas boiler serves two consumers. One is the house, and the other heating water consumer is the garage. The garage is connected via a district heating pipe (about 8m (26 feet) long). The garage has three rooms with radiators. The garage should only be kept frost-free.
My annual gas consumption (heating + domestic hot water) is about 9700 kWh.
How could I economically and efficiently integrate the garage into the new heating system?
I am considering the Panasonic Jeisha at 5 or 7 kW.
Thank you
V
Vwgolfcabrio9 Aug 2022 19:34You are right about that. Unfortunately, I haven’t had much luck in Goren yet. Maybe my questions were too specific.
Your desire to heat the garage is definitely a request that goes beyond the standard. While there are a few professionals here, the majority of users are private home builders who typically do not have such a specific situation themselves and therefore may not be able to provide much help.
Recommendation: Separate systems for separate tasks.
Heating task: Maintain living spaces at a comfortable room temperature (20°C (68°F) according to DIN standard).
Frost protection task: Keep specific enclosed rooms, located outside the building’s thermal envelope with living spaces, frost-free (≥5°C (41°F)).
There are devices specifically designed for this purpose. Unfortunately, as far as I know, they mainly operate on a direct heating principle. However, this should not be a major issue since maintaining 5°C (41°F) is relatively easy in our climate zones.
Possibly, as previously suggested (I believe in another thread), a monoblock heat pump could be used. These can probably heat with a coefficient of performance (COP) of around 2.5 to 3.
However, I am not certain whether they remain that efficient at such low temperatures or if the thermostat is accurate enough in that range.
Heating task: Maintain living spaces at a comfortable room temperature (20°C (68°F) according to DIN standard).
Frost protection task: Keep specific enclosed rooms, located outside the building’s thermal envelope with living spaces, frost-free (≥5°C (41°F)).
There are devices specifically designed for this purpose. Unfortunately, as far as I know, they mainly operate on a direct heating principle. However, this should not be a major issue since maintaining 5°C (41°F) is relatively easy in our climate zones.
Possibly, as previously suggested (I believe in another thread), a monoblock heat pump could be used. These can probably heat with a coefficient of performance (COP) of around 2.5 to 3.
However, I am not certain whether they remain that efficient at such low temperatures or if the thermostat is accurate enough in that range.
Sorry, but…
It’s already quite unreasonable to retrofit the heating system after only 8 years in a new house. Most likely, the original planning was based mainly on forum advice. Heat pumps have been popular for over 10 years now.
Who actually does the laundry in the garage? Okay, there seems to be plenty of space to hang laundry for drying, but additional energy is needed to heat the garage. And if no clothesline is used because a dryer is in operation, I wonder even more why the appliance is located in the garage.
No matter what we write here, you need a professional who can assess the current situation and show possible options. Who designed this unusual setup “back then”? Is the heating technician (“Heizi”) still around? They would be my first point of contact.
You would first have to “heat back” the investment of probably 10–15,000€ (roughly 11,000–16,500 USD), even with (I read about photovoltaics and battery storage?) partially “free” energy.
With all the existing components and installations, finding a (cost-effective) solution is relatively complex.
It’s already quite unreasonable to retrofit the heating system after only 8 years in a new house. Most likely, the original planning was based mainly on forum advice. Heat pumps have been popular for over 10 years now.
Who actually does the laundry in the garage? Okay, there seems to be plenty of space to hang laundry for drying, but additional energy is needed to heat the garage. And if no clothesline is used because a dryer is in operation, I wonder even more why the appliance is located in the garage.
No matter what we write here, you need a professional who can assess the current situation and show possible options. Who designed this unusual setup “back then”? Is the heating technician (“Heizi”) still around? They would be my first point of contact.
You would first have to “heat back” the investment of probably 10–15,000€ (roughly 11,000–16,500 USD), even with (I read about photovoltaics and battery storage?) partially “free” energy.
With all the existing components and installations, finding a (cost-effective) solution is relatively complex.
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