Hausbesitzer5
2017-11-22 23:43:53
- #1
Good day dear forum community,
this is my first post here in the forum. I hope I am in the right place.
I am the owner and resident of an old building in Hamburg, more precisely a Hamburger Kaffeemühle (see Wikipedia article). The house has three floors (ground floor, 1st floor, 2nd floor as well as a basement). The apartments on the respective floors are all well developed, but unfortunately we have no heating in the stairwell.
When you open the apartment door to the stairwell from one of the apartments, the warm air from the apartment flows into the significantly colder stairwell. There, the warm air rises and cools down at the upper end of the stairwell. Since colder air cannot absorb as much humidity, water condenses on the upper walls and the ceiling of the stairwell.
At the top of the stairwell, the wall paint is now peeling off and in the short to medium term, mold will develop there. A solution to this problem could, from my point of view, be the installation of a heating system in the stairwell so that the temperature difference between the apartment air and the stairwell air is not so great and the air in the stairwell no longer condenses.
1. Question: Is the problem and my idea of a heating system understandable so far? Is heating an appropriate solution?
Now the question arises as to which type of heating I should choose. From my point of view, two types of heating are available:
a) a hot water heating system connected to the "normal" hot water heating system here in the house
b) an electric heater
Regarding a) It could be very difficult to lay the water pipes into the stairwell because they would have to be laid completely from the basement upwards. This would require breaking through walls and ceilings. From my point of view, this represents a disproportionately high effort.
Regarding b) An electric heater is easy to install and possibly even mobile. At the two places in the stairwell where an electric heater could be placed, there are also normal Schuko sockets, so electricity is available.
Due to the simplicity of installation, I would prefer an electric heater.
2. Question: Is my preference for an electric heater correct and understandable? Would you do it the same way?
Now I am faced with the choice of the right electric heater.
A few days ago a representative of the company "WIBO-WERK GmbH Hamburg" was at our home and gave us an offer. He recommends the electric heater "Wibo 702-2", of which we should install one on the ground floor and one on the 2nd floor (= top) of the stairwell. This Wibo electric heater has an output of 1 kW each. According to the representative, both heaters can be operated with approx. 360 euros as average heating costs per entire year. However, one heater costs 1,984 euros, so both together 3,968 euros (including installation, VAT, etc.). Now I wonder why these heaters are so expensive and what makes them special.
Can't I just take electric heaters from the hardware store of my choice for e.g. 100 euros each? Then I would have spent a total of 200 euros and saved about 3,750 euros compared to the electric heaters from Wibo. Even if the electric heaters from the hardware store have a worse efficiency and consume more power, I can at least heat for a few years until the purchase costs of the Wibo heater are reached.
3. Question: What do you think about this and what would you do? Do you have any experience with the company "WIBO-WERK GmbH Hamburg" and if so, which? Which good and affordable electric heaters from the hardware store can you recommend? Are there possibly "black sheep" here, e.g. cheap heaters from China & co., which might pose a fire hazard?
Thank you very much for your help!
this is my first post here in the forum. I hope I am in the right place.
I am the owner and resident of an old building in Hamburg, more precisely a Hamburger Kaffeemühle (see Wikipedia article). The house has three floors (ground floor, 1st floor, 2nd floor as well as a basement). The apartments on the respective floors are all well developed, but unfortunately we have no heating in the stairwell.
When you open the apartment door to the stairwell from one of the apartments, the warm air from the apartment flows into the significantly colder stairwell. There, the warm air rises and cools down at the upper end of the stairwell. Since colder air cannot absorb as much humidity, water condenses on the upper walls and the ceiling of the stairwell.
At the top of the stairwell, the wall paint is now peeling off and in the short to medium term, mold will develop there. A solution to this problem could, from my point of view, be the installation of a heating system in the stairwell so that the temperature difference between the apartment air and the stairwell air is not so great and the air in the stairwell no longer condenses.
1. Question: Is the problem and my idea of a heating system understandable so far? Is heating an appropriate solution?
Now the question arises as to which type of heating I should choose. From my point of view, two types of heating are available:
a) a hot water heating system connected to the "normal" hot water heating system here in the house
b) an electric heater
Regarding a) It could be very difficult to lay the water pipes into the stairwell because they would have to be laid completely from the basement upwards. This would require breaking through walls and ceilings. From my point of view, this represents a disproportionately high effort.
Regarding b) An electric heater is easy to install and possibly even mobile. At the two places in the stairwell where an electric heater could be placed, there are also normal Schuko sockets, so electricity is available.
Due to the simplicity of installation, I would prefer an electric heater.
2. Question: Is my preference for an electric heater correct and understandable? Would you do it the same way?
Now I am faced with the choice of the right electric heater.
A few days ago a representative of the company "WIBO-WERK GmbH Hamburg" was at our home and gave us an offer. He recommends the electric heater "Wibo 702-2", of which we should install one on the ground floor and one on the 2nd floor (= top) of the stairwell. This Wibo electric heater has an output of 1 kW each. According to the representative, both heaters can be operated with approx. 360 euros as average heating costs per entire year. However, one heater costs 1,984 euros, so both together 3,968 euros (including installation, VAT, etc.). Now I wonder why these heaters are so expensive and what makes them special.
Can't I just take electric heaters from the hardware store of my choice for e.g. 100 euros each? Then I would have spent a total of 200 euros and saved about 3,750 euros compared to the electric heaters from Wibo. Even if the electric heaters from the hardware store have a worse efficiency and consume more power, I can at least heat for a few years until the purchase costs of the Wibo heater are reached.
3. Question: What do you think about this and what would you do? Do you have any experience with the company "WIBO-WERK GmbH Hamburg" and if so, which? Which good and affordable electric heaters from the hardware store can you recommend? Are there possibly "black sheep" here, e.g. cheap heaters from China & co., which might pose a fire hazard?
Thank you very much for your help!