Sinosch31
2022-04-20 08:06:54
- #1
Good morning everyone!
For the construction of our single-family house (the shell is currently underway), we are currently awarding the heating and plumbing work. First of all, here are some key data about the building:
- 2 full floors, a total of approx. 180 m² (170 m² living space, 10 m² technical room)
- no basement
- gable roof
- KFW 55 EE (including air-to-water heat pump, photovoltaic system)
- it will be occupied by 2 adults and 1 child (later a total of 2 children)
Planned is an air-to-water heat pump in combination with a photovoltaic system as well as underfloor heating.
Supplier A offers the following for the air-to-water heat pump:
Brand Vaillant with a hot water tank of 190 liters and all necessary accessories + installation for 28,560.00 euros net.
Supplier B offers the following:
Brand Weishaupt with a hot water tank of 309 liters and all necessary accessories + installation for 22,628.20 euros net.
My question: Do you have experience with the size of the hot water tank? Supplier A says that 190 liters is sufficient for a 4-person household. It should be mentioned that we like to shower longer. So we are not necessarily the most economical in this regard.
Thank you in advance for your opinions/experiences.
For the construction of our single-family house (the shell is currently underway), we are currently awarding the heating and plumbing work. First of all, here are some key data about the building:
- 2 full floors, a total of approx. 180 m² (170 m² living space, 10 m² technical room)
- no basement
- gable roof
- KFW 55 EE (including air-to-water heat pump, photovoltaic system)
- it will be occupied by 2 adults and 1 child (later a total of 2 children)
Planned is an air-to-water heat pump in combination with a photovoltaic system as well as underfloor heating.
Supplier A offers the following for the air-to-water heat pump:
Brand Vaillant with a hot water tank of 190 liters and all necessary accessories + installation for 28,560.00 euros net.
Supplier B offers the following:
Brand Weishaupt with a hot water tank of 309 liters and all necessary accessories + installation for 22,628.20 euros net.
My question: Do you have experience with the size of the hot water tank? Supplier A says that 190 liters is sufficient for a 4-person household. It should be mentioned that we like to shower longer. So we are not necessarily the most economical in this regard.
Thank you in advance for your opinions/experiences.