Hello everyone,
We were incredibly lucky to purchase a great end-terrace house (heritage protection only on the exterior) in a fantastic neighborhood.
Built in 1915, but the structure is in excellent condition since it was built before the war.
No moisture in the basement, and the roof is dry.
Heating was provided by gas individual heaters in each room, but these have already been removed.
Living space is about 110 sqm (1,184 sq ft), garden area 450 sqm (4,844 sq ft) in the beautiful Palatinate region.
A gas connection is available.
We now want to renovate and already have an energy consultant who will also oversee the construction supervision.
Initial feedback from the energy consultant:
- Photovoltaic system on the south-facing roof without shading
- Thermal buffer storage recommended
- Ventilation system combined with an earth tube (seems to replace a split air conditioning unit? Does anyone have experience with this?)
- Ceiling heating
What I am considering:
- Photovoltaic system on the south-facing roof
- Thermal buffer storage
- 10 kWh electric storage battery
- Underfloor heating on the ground floor
- Low-temperature radiators on the upper and attic floors
- Split air conditioning units recessed into the ceiling in the living, bedroom, and guest rooms
We will fully equip the house with KNX automation, including modern and up-to-date control of the heat pump and storage system.
What would you suggest adding, combining, or improving here?
We are in a very comfortable financial situation, in our early 30s, and want to “do it right” this time.
The exterior of the property must be preserved, except for the photovoltaic system on the roof, as environmental protection takes priority over heritage preservation.
Thanks for your suggestions and information.
Best regards
We were incredibly lucky to purchase a great end-terrace house (heritage protection only on the exterior) in a fantastic neighborhood.
Built in 1915, but the structure is in excellent condition since it was built before the war.
No moisture in the basement, and the roof is dry.
Heating was provided by gas individual heaters in each room, but these have already been removed.
Living space is about 110 sqm (1,184 sq ft), garden area 450 sqm (4,844 sq ft) in the beautiful Palatinate region.
A gas connection is available.
We now want to renovate and already have an energy consultant who will also oversee the construction supervision.
Initial feedback from the energy consultant:
- Photovoltaic system on the south-facing roof without shading
- Thermal buffer storage recommended
- Ventilation system combined with an earth tube (seems to replace a split air conditioning unit? Does anyone have experience with this?)
- Ceiling heating
What I am considering:
- Photovoltaic system on the south-facing roof
- Thermal buffer storage
- 10 kWh electric storage battery
- Underfloor heating on the ground floor
- Low-temperature radiators on the upper and attic floors
- Split air conditioning units recessed into the ceiling in the living, bedroom, and guest rooms
We will fully equip the house with KNX automation, including modern and up-to-date control of the heat pump and storage system.
What would you suggest adding, combining, or improving here?
We are in a very comfortable financial situation, in our early 30s, and want to “do it right” this time.
The exterior of the property must be preserved, except for the photovoltaic system on the roof, as environmental protection takes priority over heritage preservation.
Thanks for your suggestions and information.
Best regards
H
hanghaus20233 Apr 2024 13:56Labradorit schrieb:
And now back to the house, which is what this is really about, sorry! You can start by reading up on the topic. If you have any further questions, please create your own post.
N
nordanney3 Apr 2024 14:05hanghaus2023 schrieb:
Balcony system is currently allowed a maximum of 600-watt heat pump. The change to 800-watt heat pump is, in my opinion, not yet approved. “Balcony power plant” in quotes. There are such systems larger than 600 watts (W), but they must then be registered as a regular photovoltaic system and involve very little installation effort. I will install such a system as a supplement to my own photovoltaic setup on my extension. No solar installer offers it this cheaply. An electrician is hired separately for connecting it to the fuse box.
H
hanghaus20234 Apr 2024 11:27hanghaus2023 schrieb:
Balcony systems are currently allowed a maximum of 600 heat pump. Changing this to 800 heat pump is, in my opinion, not yet approved.
Of course, I can buy the materials much cheaper. Installation on the roof and the certified electrician are not suitable for DIY. My strings carry over 400 volts. Who changed that? I wrote 600 heat pump. This doesn’t make sense otherwise.
Hello,
I have read a lot and tried to put the pieces of the puzzle together.
The first quotes show really huge price differences, from a local craftsman to a nationwide construction team.
Now a local gas and water installer has made the following proposal:
Since there is space in the basement and a chimney is available, he suggests first installing a gas boiler. He can offer a very good price. However, we will prepare everything for the heat pump: laying empty conduits to the outside, preparing connections, sizing the thermal storage, and preparing its integration with the heat pump.
He believes current prices for heat pumps are still extremely high; he himself says the subsidies are fully reflected in the price.
Of course, the gas heating can also be operated at low temperature, meaning the hydraulic balancing only has to be done once.
Are there any other objective opinions on this?
Regards
I have read a lot and tried to put the pieces of the puzzle together.
The first quotes show really huge price differences, from a local craftsman to a nationwide construction team.
Now a local gas and water installer has made the following proposal:
Since there is space in the basement and a chimney is available, he suggests first installing a gas boiler. He can offer a very good price. However, we will prepare everything for the heat pump: laying empty conduits to the outside, preparing connections, sizing the thermal storage, and preparing its integration with the heat pump.
He believes current prices for heat pumps are still extremely high; he himself says the subsidies are fully reflected in the price.
Of course, the gas heating can also be operated at low temperature, meaning the hydraulic balancing only has to be done once.
Are there any other objective opinions on this?
Regards
mayor333 schrieb:
He believes that current prices for heat pumps are still way too high; he himself says that the subsidies are simply added 1:1 to the price. In my impression, the price increase mainly comes from the installers.
I do not see those sky-high prices in retail.
Wolf CHA0A7 – indoor and outdoor unit with domestic hot water storage under 8k (8,000)
Panasonic Aquarea LT-L indoor and outdoor unit with domestic hot water storage under 7k (7,000)
Vaillant Arotherm VWL 75/6 with domestic hot water storage around 8.5k (8,500)
All of these are good units based on the numbers, and thanks to pre-configured setups, almost plug and play for the installer.
I don’t see the point in planning a hybrid system for the building size. With the extra cost for the gas boiler, you could replace all radiators twice and simply do without it.
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