ᐅ Questions about underfloor heating – new subfloor/screed/granite tiles
Created on: 8 Jun 2016 10:43
S
Schwabe87S
Schwabe878 Jun 2016 10:43Hello,
I have a few questions that mostly relate to heating.
Here is the situation: I inherited part of a house and recently bought the remaining part. Since I recently separated from my partner and currently live with relatives, I’m considering renovating the house and then moving in.
The house was built in 1950 and extended in 2000.
A lot needs to be done: new electrical wiring, new water pipes, new heating system (the oil burner dates from 1990), so it’s a complete renovation!
Right now, I am focusing on the heating system.
The living area is about 130sqm (1400 sq ft).
The entire living space will have underfloor heating. For that, I plan to remove the old screed along with the tiles. Afterward, the underfloor heating will be installed, and granite tiles will be used as the surface. I already have these in my current apartment and don’t want anything else.
Additionally, the very old burner in the basement will be replaced with a new one.
The basement and ground floor belong to me; on the first floor my aunt lives (this apartment also belongs to me). However, her apartment will not be renovated yet, but it is also connected to the burner.
Now my question: roughly how much should I budget for the following, including labor?
About 130sqm (1400 sq ft) of White Pearl granite tiles
About 130sqm (1400 sq ft) of underfloor heating
About 130sqm (1400 sq ft) of liquid screed
A new burner
New heating and water pipes
I will do the demolition myself; I have the tools, but I cannot install the system on my own.
Overall, I have a budget of about 125,000 Euros for the renovation.
It must also be considered that a completely new electrical system will be installed since the old one is a patchwork, and since I am renovating, I want everything done properly.
Best regards
PS:
By the way, I am not interested in subsidies or funding—I simply don’t want to do anything I don’t want to just for the sake of “funding.”
The only thing I’m considering is a photovoltaic system for self-consumption.
I have a few questions that mostly relate to heating.
Here is the situation: I inherited part of a house and recently bought the remaining part. Since I recently separated from my partner and currently live with relatives, I’m considering renovating the house and then moving in.
The house was built in 1950 and extended in 2000.
A lot needs to be done: new electrical wiring, new water pipes, new heating system (the oil burner dates from 1990), so it’s a complete renovation!
Right now, I am focusing on the heating system.
The living area is about 130sqm (1400 sq ft).
The entire living space will have underfloor heating. For that, I plan to remove the old screed along with the tiles. Afterward, the underfloor heating will be installed, and granite tiles will be used as the surface. I already have these in my current apartment and don’t want anything else.
Additionally, the very old burner in the basement will be replaced with a new one.
The basement and ground floor belong to me; on the first floor my aunt lives (this apartment also belongs to me). However, her apartment will not be renovated yet, but it is also connected to the burner.
Now my question: roughly how much should I budget for the following, including labor?
About 130sqm (1400 sq ft) of White Pearl granite tiles
About 130sqm (1400 sq ft) of underfloor heating
About 130sqm (1400 sq ft) of liquid screed
A new burner
New heating and water pipes
I will do the demolition myself; I have the tools, but I cannot install the system on my own.
Overall, I have a budget of about 125,000 Euros for the renovation.
It must also be considered that a completely new electrical system will be installed since the old one is a patchwork, and since I am renovating, I want everything done properly.
Best regards
PS:
By the way, I am not interested in subsidies or funding—I simply don’t want to do anything I don’t want to just for the sake of “funding.”
The only thing I’m considering is a photovoltaic system for self-consumption.
S
Schwabe878 Jun 2016 11:05Hello @Mycraft
Thank you for your reply.
I also estimated around 50,000 EUR. For the electrics (new wiring/2 meter slots/network/electric shutters, excluding lamps/lights), I have budgeted about 20,000 EUR.
Then there will be a new kitchen, a new ceiling (currently old tongue-and-groove boards). I want to install drywall (gypsum board) with textured wallpaper on top. The advantage is that the electrician can run cables behind it without having to chase into the walls everywhere. New walls (textured wallpaper, currently plastered). New stairs to the basement, new bathroom (about 15 m² (160 ft²), only shower, double washbasin).
Do you think this estimate is roughly realistic?
Is it worthwhile to hire an interior designer? I actually have very clear ideas of what I want and how, as well as the finishes. It’s just that I can’t manage the technical implementation on my own, due to lack of time and especially experience.
Do you know if it makes sense to install a vapor barrier when renewing the ceiling? Someone else still lives above. The roof has already been insulated with mineral wool.
Thank you for your reply.
I also estimated around 50,000 EUR. For the electrics (new wiring/2 meter slots/network/electric shutters, excluding lamps/lights), I have budgeted about 20,000 EUR.
Then there will be a new kitchen, a new ceiling (currently old tongue-and-groove boards). I want to install drywall (gypsum board) with textured wallpaper on top. The advantage is that the electrician can run cables behind it without having to chase into the walls everywhere. New walls (textured wallpaper, currently plastered). New stairs to the basement, new bathroom (about 15 m² (160 ft²), only shower, double washbasin).
Do you think this estimate is roughly realistic?
Is it worthwhile to hire an interior designer? I actually have very clear ideas of what I want and how, as well as the finishes. It’s just that I can’t manage the technical implementation on my own, due to lack of time and especially experience.
Do you know if it makes sense to install a vapor barrier when renewing the ceiling? Someone else still lives above. The roof has already been insulated with mineral wool.
I can’t provide any answers regarding costs, but there are several questions that, in my opinion, should be considered even for a rough assessment of your project:
For the new heating system, it’s important to know whether your aunt still has radiators on the first floor or if there is already underfloor heating installed. I assume it’s the former; in that case, you will need a completely different supply temperature there, and the heating system will likely require a second heating circuit. Are there additional radiators downstairs as well? The higher supply temperature may limit the choice of new heating technology (although heat pump systems are probably not an option anyway unless the house’s insulation meets new build standards).
What type of heating is currently installed (oil, gas, with or without condensing technology)?
If switching to a condensing boiler (which is almost certainly the case nowadays), the chimney flue must be adjusted due to the lower flue gas temperature (inserting a liner or similar). Switching to a different heating technology than before might require further modifications.
Another question is whether insulation improvements should be prioritized first, given the age of the house (windows, walls), in order to dimension the new heating system efficiently, or whether something was already done during the extension in 2000. If you are planning a full renovation, relevant legal regulations related to the energy-saving ordinance may also need to be considered.
If you want to install completely new piping, a bathroom renovation will likely be necessary as well. That alone can be quite costly—I’ve just been through that myself.
As the project progresses, unexpected issues often arise on site, so it’s wise to include a safety buffer in your planning.
Hopefully, I was able to provide at least a few points to consider.
For the new heating system, it’s important to know whether your aunt still has radiators on the first floor or if there is already underfloor heating installed. I assume it’s the former; in that case, you will need a completely different supply temperature there, and the heating system will likely require a second heating circuit. Are there additional radiators downstairs as well? The higher supply temperature may limit the choice of new heating technology (although heat pump systems are probably not an option anyway unless the house’s insulation meets new build standards).
What type of heating is currently installed (oil, gas, with or without condensing technology)?
If switching to a condensing boiler (which is almost certainly the case nowadays), the chimney flue must be adjusted due to the lower flue gas temperature (inserting a liner or similar). Switching to a different heating technology than before might require further modifications.
Another question is whether insulation improvements should be prioritized first, given the age of the house (windows, walls), in order to dimension the new heating system efficiently, or whether something was already done during the extension in 2000. If you are planning a full renovation, relevant legal regulations related to the energy-saving ordinance may also need to be considered.
If you want to install completely new piping, a bathroom renovation will likely be necessary as well. That alone can be quite costly—I’ve just been through that myself.
As the project progresses, unexpected issues often arise on site, so it’s wise to include a safety buffer in your planning.
Hopefully, I was able to provide at least a few points to consider.
Hello Simon,
Unfortunately, it is almost impossible to estimate from a distance.
There are also these new requirements coming up.
Just write everything down on a piece of paper. For the tasks you want to do yourself, calculate the material requirements, check prices at a specialized retailer, add a buffer, and you will know how much it will cost.
For the trades you want to hire (heating, plumbing, tiling, electrical work, screeding, staircase, painting?), it’s best to contact 2-3 local contractors and get quotes. Be aware that as a layperson, comparing offers can be difficult.
Local craftsmen often have the advantage that they know each other (ask for recommendations) and may coordinate with each other independently.
You should consider getting expert advice from an architect or a building surveyor if needed.
Unfortunately, it is almost impossible to estimate from a distance.
Schwabe87 schrieb:
Then there will be a new kitchen, new ceiling (currently old tongue-and-groove boards). I want to use drywall panels with textured wallpaper over them. The advantage is that the electrician can run cables behind them without having to chase walls everywhere. Walls will be new as well (textured wallpaper, currently plastered). New staircase to the basement, new bathroom (approx. 15sqm (160 sq ft), only shower, double washbasin)
There are also these new requirements coming up.
Just write everything down on a piece of paper. For the tasks you want to do yourself, calculate the material requirements, check prices at a specialized retailer, add a buffer, and you will know how much it will cost.
For the trades you want to hire (heating, plumbing, tiling, electrical work, screeding, staircase, painting?), it’s best to contact 2-3 local contractors and get quotes. Be aware that as a layperson, comparing offers can be difficult.
Local craftsmen often have the advantage that they know each other (ask for recommendations) and may coordinate with each other independently.
You should consider getting expert advice from an architect or a building surveyor if needed.
S
Schwabe878 Jun 2016 11:17Hello
@FrankH
Thank you very much for your post.
All the windows are double-glazed PVC windows. They were all replaced around the year 2000.
Unfortunately, my aunt still uses radiators. Ideally, I would like to renovate both apartments at the same time. Unfortunately, that’s not easy to organize because my aunt can’t move out anywhere.
My future apartment is currently vacant.
I actually wanted to avoid external wall insulation, as opinions on its cost-effectiveness vary greatly. A heat pump is definitely off the table.
The current fuel is oil. I can’t say exactly what kind of burner it is. The building dates from 1993.
Good luck
@FrankH
Thank you very much for your post.
All the windows are double-glazed PVC windows. They were all replaced around the year 2000.
Unfortunately, my aunt still uses radiators. Ideally, I would like to renovate both apartments at the same time. Unfortunately, that’s not easy to organize because my aunt can’t move out anywhere.
My future apartment is currently vacant.
I actually wanted to avoid external wall insulation, as opinions on its cost-effectiveness vary greatly. A heat pump is definitely off the table.
The current fuel is oil. I can’t say exactly what kind of burner it is. The building dates from 1993.
Good luck
Similar topics