ᐅ Renovation of an Existing Property in the Lower Rhine Region
Created on: 5 Jun 2020 19:18
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nordanney
After spending the last three to four years mostly answering questions rather than asking them here in the forum, I want to introduce my new project today.
I will be giving up my current condominium and have chosen a house as an existing property that I simply couldn’t say no to. This will be only my fourth property in 8 years…
The house (and garden) finally offers enough space for my kids.
Location: Lower Rhine region, within a 20-35 minute drive of Düsseldorf / Ruhr area
Plot size: approx. 1,100 sq m (11,840 sq ft)
Year built: 1966 (roof is relatively new, extension from the 1980s)
Two-family house, ground floor for me, upper floor rented long-term (living space: ground floor 120 sq m (1,290 sq ft), upper floor 80 sq m (860 sq ft), basement 120 sq m (1,290 sq ft), 2 garages + 2 parking spaces)
What do I plan to do? Starting in August, the ground floor apartment will undergo extensive renovations for about 12 months (underfloor heating + heat pump, open kitchen to living area, new bathroom + WC, complete rewiring, photovoltaic system, possibly new plumbing installation, insulation of cold roof’s top ceiling, basement ceiling insulation, installation of perimeter insulation + external thermal insulation composite system, new flooring after screed removal and underfloor heating installation, replace old open fireplace with a more modern one, lay wooden terrace, replace windows + some minor tasks). The upper floor apartment will initially remain untouched as it is in good condition. The oil heating will continue to serve this apartment.
Since I will be doing a lot of the work myself, I will definitely have new questions about possible solutions in the future. I’m already looking forward to it.
Finally, here are some pictures:
I will be giving up my current condominium and have chosen a house as an existing property that I simply couldn’t say no to. This will be only my fourth property in 8 years…
The house (and garden) finally offers enough space for my kids.
Location: Lower Rhine region, within a 20-35 minute drive of Düsseldorf / Ruhr area
Plot size: approx. 1,100 sq m (11,840 sq ft)
Year built: 1966 (roof is relatively new, extension from the 1980s)
Two-family house, ground floor for me, upper floor rented long-term (living space: ground floor 120 sq m (1,290 sq ft), upper floor 80 sq m (860 sq ft), basement 120 sq m (1,290 sq ft), 2 garages + 2 parking spaces)
What do I plan to do? Starting in August, the ground floor apartment will undergo extensive renovations for about 12 months (underfloor heating + heat pump, open kitchen to living area, new bathroom + WC, complete rewiring, photovoltaic system, possibly new plumbing installation, insulation of cold roof’s top ceiling, basement ceiling insulation, installation of perimeter insulation + external thermal insulation composite system, new flooring after screed removal and underfloor heating installation, replace old open fireplace with a more modern one, lay wooden terrace, replace windows + some minor tasks). The upper floor apartment will initially remain untouched as it is in good condition. The oil heating will continue to serve this apartment.
Since I will be doing a lot of the work myself, I will definitely have new questions about possible solutions in the future. I’m already looking forward to it.
Finally, here are some pictures:
Schimi17914 May 2021 11:22It’s always fascinating to follow a project like this and watch the diamond being polished 😀
Amazing how closely spaced the heating pipes are laid out 😳
Amazing how closely spaced the heating pipes are laid out 😳
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nordanney4 May 2021 11:26Schimi1791 schrieb:
It’s always interesting to follow a project like this and see how the diamond is being polished 😀But it’s a lot of work – on one side the owner’s participation and on the other side the construction management/contracts.Schimi1791 schrieb:
Amazing how closely spaced the heating pipes are laid 😳That’s about 300 meters (984 feet) of heating pipe for just under 25 square meters (270 square feet). Pipe spacing is 5 cm (2 inches). It’s a basement level, so insulation underneath is no longer really possible afterward, meaning we have to compensate with appropriate heating capacity. That’s why we hired an engineering firm for the heat load calculation and heating system design, instead of just saying “we’ve always done 10 cm (4 inches).”
Schimi1791 schrieb:
Amazing how closely the heating pipes are laid 😳I thought exactly the same! Someone clearly followed their own advice and kept a close eye on the contractors or even took matters into their own hands 😉
Well done, @nordanney! I’m looking forward to seeing how it turns out when it’s finished!
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nordanney4 May 2021 11:30DaSch17 schrieb:
Did it myself 😉Yep. It’s not rocket science with a layout plan. Installation connecting to the heating circuit manifold took about four hours.DaSch17 schrieb:
Someone followed their own adviceI can’t preach water and drink wine 😉 Since so many renovation threads have appeared in recent weeks, I thought I’d show a bit of practical work again.
Kurpfaelzer11 Jun 2021 09:50Great project. It’s interesting that you had a heating load calculation done. Could you share more about the heating load, heat pumps in connection with radiators in a rented apartment, and the size of the Panasonic heat pumps?
For us, it will be the same: underfloor heating in our apartment, radiators in the rented apartment.
For us, it will be the same: underfloor heating in our apartment, radiators in the rented apartment.
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nordanney11 Jun 2021 11:36Kurpfaelzer schrieb:
Interesting that you commissioned a heat load calculation.Since I’m doing the entire renovation as a DIY project without an architect, this was the only feasible solution. The energy consultant only calculates the total building heat load, which is not very helpful, especially when different heat emitters are used (underfloor heating/radiators).Kurpfaelzer schrieb:
Could you share more about heat load, heat pumps in connection with radiators in a rented apartment, and the size of the Panasonic heat pumps?In the end, I commissioned room-by-room heat load calculations for both apartments (Heckmann – a service often used by DIYers as well). In addition to the heat load calculation, the underfloor heating system was designed according to my specifications, including the layout plan (preset temperatures and supply temperature), and the sizing of the radiators was also calculated. Of course, with hydraulic balancing – you can also adjust the flow rates at the radiator valves.Since there are two apartments, I decided to use two heat pumps. It’s possible to use one larger heat pump, but hydraulically it’s not ideal, especially given the different supply temperatures (underfloor heating 30/26°C (86/79°F) at 22°C (72°F) room temperature and radiators at 40/35°C (104/95°F) at 20°C (68°F) room temperature).
The house has a total heat load of around 7 kW (200 m² (2,150 sq ft)). So I chose the 5 kW (17,000 BTU/h) monoblock units of the latest generation for each apartment. rjtec provides very good advice on this (they even offer a commissioning service if you install the system yourself – which is actually very easy). Thanks to the good modulation capability of the units, they perfectly match the house.
I’ve already started using the underfloor heating with them to dry out the screed. The system for the second apartment isn’t fully finished yet, and the radiators haven't been installed. I plan to do that in autumn when my apartment is complete. Besides, there is still enough oil in the tank ;-)
I’ll upload new pictures over the weekend since the move is planned in six weeks.
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