ᐅ End-Terrace House from 1915: Photovoltaic System?

Created on: 1 Apr 2024 19:29
M
mayor333
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
N
nordanney
4 Jul 2024 07:50
mayor333 schrieb:

Had a meeting with the EEB, the IFSP was presented. Then the cost estimate from the EEB, who is also supposed to supervise the construction. All in all, he calculated $315,000, and he wants this amount available to carry out the renovation. Additionally, $30,000 for construction supervision.

So, complete gutting down to the foundation walls, and the roof removed as well. Then rebuild completely with all extras. Correct? It can be done, but it’s not absolutely necessary.
M
mayor333
4 Jul 2024 21:57
That’s exactly how the calculation was done.

I have to say, we do have a few tradespeople in the family, but 315,000 for renovating 100 sqm (1,076 sq ft), wow.
N
nordanney
4 Jul 2024 22:29
mayor333 schrieb:

I have to say, we have a few trades in the family, but $315k to renovate 100 sqm (1,080 sq ft), wow.

In the end, it probably won’t be quite that expensive (at least that’s my personal opinion), but considering that you have to strip an existing property back to the bare shell and then basically work like it’s a new build, the price is reasonable. You also have high specifications, judging by your initial post – it mentions photovoltaic systems with battery storage, air conditioning, KNX automation. The rest will be renovated to a high standard as well. And that costs money.
M
mayor333
14 Jul 2024 04:50
Hello everyone,

We have now received several quotes from different trades and will only handle the energy-related topics with the eeb.

On the ground floor, we have wooden planks with sand in between. A PVC floor from the 1970s was glued on top of the wooden floor. The floor is intact, not rotten or anything like that. Now we are considering installing the underfloor heating directly on the existing floor. This would save a lot of work and avoid special waste.

Does anyone have experience with this? The same applies to the upper floor.

Best regards
M
mayor333
30 Jul 2024 18:16
Hello,

Does anyone have experience with a gas heating system that is heat pump ready?

I have two offers for a classic gas condensing boiler with a 120-liter (32-gallon) hot water storage tank. We plan to automate the circulation using motion sensors/buttons in the kitchen.

Since it’s uncertain how things will develop in the coming years, I would like to install a system that still allows the integration of a heat pump later on and, thanks to smart controls, can either run the heat pump or activate the gas boiler.

Also, has anyone installed the Schlüter underfloor heating system and are satisfied with it? Our heating specialist recommended either that or Fermacell.

Best regards

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