ᐅ Which Heating System for Maintaining a Room Temperature of 23 °C
Created on: 14 Sep 2020 13:46
F
FetzerinoF
Fetzerino14 Sep 2020 13:46Hello community,
For the past few days, I have been researching current heating technologies and feel that it raises more questions than answers, which is why I am now turning to you with my questions in the hope that experienced users of this system can provide some answers.
My wife and I would like to build a KFW40+ house with about 130 sqm (1400 sq ft). The house will have an unobstructed southern exposure, meaning plenty of sun in both summer and winter. A photovoltaic system will be installed on the roof. At the moment, we are leaning towards a prefabricated house, but we are still in the decision-making phase.
We both currently live in an apartment with underfloor heating and a gas boiler, and we find the warmth emitted by the underfloor heating very comfortable. I have set the central room temperature to 23°C (73°F) on the gas boiler because we both like it quite warm, although this can be adjusted downward locally with thermostats.
With a prefabricated house, the Proxon air-to-air heat pump is usually offered as the solution on the market. However, further research reveals advantages and disadvantages of this technology, as with any topic. I have read so far that many heat their rooms to 20–21°C (68–70°F) using the air-to-air heat pump. However, I have not yet found out whether it is possible to reach 23°C (73°F) with an air-to-air heat pump without the use of auxiliary heating panels. The question is also what power consumption these auxiliary panels have. The sales representative of the prefab house provider mentioned that with these auxiliary heating panels, the room can be warmed quite quickly (within 5 minutes). Ultimately, the whole setup works like a hairdryer. But if I hold a 2 kW hairdryer in a room, I don’t notice a significant difference after 5 minutes.
Question: Can I achieve a room temperature of 23°C (73°F) without auxiliary heating panels, even in larger rooms? What is the power consumption of such an auxiliary heating panel? Does anyone have additional consumption data for this heating solution? How does it perform on cold winter days? Ultimately, it is about the indoor climate, and 23°C (73°F) is not always the same 23°C (73°F), which I understand.
As an alternative, it seems that an air-to-water heat pump is also an option. In terms of efficiency, this is said to be similar to the air-to-air heat pump but more expensive to install because pipes must be laid. However, since the flow temperature is lower, it should be more economical to operate. Is that correct? With this type of heating, there should be no problem achieving 23°C (73°F) even in larger rooms, right? Does anyone also have consumption data here? Of course, it depends on individual behavior, which I understand, but figures can help build a sense for it.
Cooling in summer is not possible with this heating system but should be possible as an add-on with an air-to-air heat pump. Does a KFW40+ house get very warm in summer?
Thank you very much for your help and information.
For the past few days, I have been researching current heating technologies and feel that it raises more questions than answers, which is why I am now turning to you with my questions in the hope that experienced users of this system can provide some answers.
My wife and I would like to build a KFW40+ house with about 130 sqm (1400 sq ft). The house will have an unobstructed southern exposure, meaning plenty of sun in both summer and winter. A photovoltaic system will be installed on the roof. At the moment, we are leaning towards a prefabricated house, but we are still in the decision-making phase.
We both currently live in an apartment with underfloor heating and a gas boiler, and we find the warmth emitted by the underfloor heating very comfortable. I have set the central room temperature to 23°C (73°F) on the gas boiler because we both like it quite warm, although this can be adjusted downward locally with thermostats.
With a prefabricated house, the Proxon air-to-air heat pump is usually offered as the solution on the market. However, further research reveals advantages and disadvantages of this technology, as with any topic. I have read so far that many heat their rooms to 20–21°C (68–70°F) using the air-to-air heat pump. However, I have not yet found out whether it is possible to reach 23°C (73°F) with an air-to-air heat pump without the use of auxiliary heating panels. The question is also what power consumption these auxiliary panels have. The sales representative of the prefab house provider mentioned that with these auxiliary heating panels, the room can be warmed quite quickly (within 5 minutes). Ultimately, the whole setup works like a hairdryer. But if I hold a 2 kW hairdryer in a room, I don’t notice a significant difference after 5 minutes.
Question: Can I achieve a room temperature of 23°C (73°F) without auxiliary heating panels, even in larger rooms? What is the power consumption of such an auxiliary heating panel? Does anyone have additional consumption data for this heating solution? How does it perform on cold winter days? Ultimately, it is about the indoor climate, and 23°C (73°F) is not always the same 23°C (73°F), which I understand.
As an alternative, it seems that an air-to-water heat pump is also an option. In terms of efficiency, this is said to be similar to the air-to-air heat pump but more expensive to install because pipes must be laid. However, since the flow temperature is lower, it should be more economical to operate. Is that correct? With this type of heating, there should be no problem achieving 23°C (73°F) even in larger rooms, right? Does anyone also have consumption data here? Of course, it depends on individual behavior, which I understand, but figures can help build a sense for it.
Cooling in summer is not possible with this heating system but should be possible as an add-on with an air-to-air heat pump. Does a KFW40+ house get very warm in summer?
Thank you very much for your help and information.
D
Daniel-Sp14 Sep 2020 14:04Fetzerino schrieb:
Will it get very warm in a KFW40+ house during the summer?
Thank you very much for your help and information Yes, if you don't provide shading.
N
Nice-Nofret14 Sep 2020 15:23.. that also depends on where your house is located; we have more than enough warmth even in winter, but we live in a very sunny area with fairly mild winters; if your cabin is in a German low mountain range at over 800 meters (2600 feet), it is likely to be quite different.
T
T_im_Norden14 Sep 2020 15:24First, you need to know what kind of house it will be and what the heating load is, as this determines which heating system is suitable.
Why do you want KFW40+?
You can always heat the house to a comfortable temperature, but the question is always at what cost.
An air-to-air heat pump is generally not as efficient as an air-to-water heat pump.
Why do you want KFW40+?
You can always heat the house to a comfortable temperature, but the question is always at what cost.
An air-to-air heat pump is generally not as efficient as an air-to-water heat pump.
Similar topics