Hello everyone,
for our new single-family house (160 m² (1722 sq ft) living area, 4 people), we received a quote from a general contractor. The planned air-to-water heat pump is:
Vaillant VWL 115/2 aro Therm air/water 8.4 kW.
We are choosing a 300 L (79 gallons) storage tank.
According to our general contractor and their heating installers, a buffer tank is not necessary.
A heating engineer friend thinks that a buffer tank is advisable.
Opinions found online are also very mixed regarding the necessity.
How have you handled this?
If any information is missing, please let me know briefly. Thanks.
for our new single-family house (160 m² (1722 sq ft) living area, 4 people), we received a quote from a general contractor. The planned air-to-water heat pump is:
Vaillant VWL 115/2 aro Therm air/water 8.4 kW.
We are choosing a 300 L (79 gallons) storage tank.
According to our general contractor and their heating installers, a buffer tank is not necessary.
A heating engineer friend thinks that a buffer tank is advisable.
Opinions found online are also very mixed regarding the necessity.
How have you handled this?
If any information is missing, please let me know briefly. Thanks.
R
RotorMotor24 Mar 2022 14:28I also think that @Evolith is actually referring to a hot water storage tank and not a buffer tank for the hydraulic system.
After all, she mentions showers.
The topic has already been thoroughly discussed, even though the original poster didn’t ask about it.
After all, she mentions showers.
The topic has already been thoroughly discussed, even though the original poster didn’t ask about it.
R
RotorMotor28 Mar 2022 11:01Tell us more about how you plan to use the system.
The handling of individual room control (IRC) is especially important.
The handling of individual room control (IRC) is especially important.
I have an air-to-water heat pump plus photovoltaic system. Domestic hot water (180 liters (48 gallons) in our case) is covered about 4/5 of the year, and heating approximately 1/3. More photovoltaic capacity, a more efficient heat pump, and so on are always possible. We also discussed this in the gas boiler/air-to-water heat pump thread with some real data from an actual house. 😉
And my large buffer tank is also called "Estrich." We don’t even need to talk about the small 10-liter (2.6 gallons) unit used in the design-build setup.
And my large buffer tank is also called "Estrich." We don’t even need to talk about the small 10-liter (2.6 gallons) unit used in the design-build setup.
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