Is a buffer tank generally a worthwhile investment for a heat pump? Or is it highly recommended or even essential?
Is a buffer tank in my case a worthwhile investment? Or is it highly recommended or even essential?
My configuration is:
170 sqm (1829 sq ft) heated area
Energy standard: nearly KfW-55
Ground source heat pump, 3-12 kW modulating
Optimal heat pump size according to calculation: 8 kW
5 household members
Mainz
Is a buffer tank in my case a worthwhile investment? Or is it highly recommended or even essential?
My configuration is:
170 sqm (1829 sq ft) heated area
Energy standard: nearly KfW-55
Ground source heat pump, 3-12 kW modulating
Optimal heat pump size according to calculation: 8 kW
5 household members
Mainz
jx7 schrieb:
Ground source heat pump 3–12 kW modulating
Optimal heat pump size according to calculation: 8 kW Why do you want a 12 kW “monster”? Don’t oversize the heat pump! Even the calculated 8 kW seems too large to me. Is there a room-by-room heating load calculation?
hanse987 schrieb:
Why do you want a 12 kW “monster”? Don’t oversize the heat pump! Even the calculated 8 kW seems too large to me. Is there a room-by-room heating load calculation?I already have a modulating heat pump with 3–12 kW.
The idea is to add a buffer tank.
R
RotorMotor14 Feb 2024 20:17Why do you think you need one?
Is your heat pump cycling too often? Is the energy consumption too high?
It’s likely that the heat pump is significantly oversized.
First, you should check if this is really a problem, and if it is, see whether it can be managed by adjusting the settings.
Is your heat pump cycling too often? Is the energy consumption too high?
It’s likely that the heat pump is significantly oversized.
First, you should check if this is really a problem, and if it is, see whether it can be managed by adjusting the settings.
K
k-man202114 Feb 2024 21:10jx7 schrieb:
I already have a modulating heat pump with a capacity of 3-12 kW.
I am considering adding a buffer tank.So, the house and heating system are already built or installed, and you want to make some changes, or have you only ordered/purchased the heat pump so far? Maybe you could describe the current situation in more detail to get more useful answers…K
k-man202114 Feb 2024 21:17Just to clarify: our architect and the heating system planner were completely in agreement and roughly recommended the following to us: heat pump, stratified storage tank, and fresh water station, no buffer tank, no domestic hot water coil.
k-man2021 schrieb:
Just to clarify: our architect and heating system planner were completely in agreement and roughly recommended the following: heat pump, stratified storage tank, and domestic hot water station, no buffer tank, stratified storage tank and domestic hot water station, no buffer, no ERR.1) The house and heat pump are 7 years old. The heat pump was starting 24 times a day; now the compressor is broken, which I’ve already discussed. One possible solution is a buffer tank. Since I don’t want the discussion to get out of hand and want to specifically learn about buffer tanks, I formed the question this way.
2) "Stratified storage tank and domestic hot water station, no buffer"
Huh? A stratified storage tank with a domestic hot water station is a buffer tank.
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