Hello everyone,
We are currently planning our home’s technical systems. We will be installing an air-to-water heat pump, and my husband saw these Nest thermostats at his brother-in-law’s place and now absolutely wants them. Setting aside that these devices are quite expensive… how much do typical thermostats usually cost? Of course, there are probably all kinds of price ranges, but I mean the standard white or gray control units. Does anyone have experience with Nest? Do they just look good, or are these thermostats also effective? Can you tell the heating specialist, “Hey, skip your usual thermostats and install these ones instead?”
Thanks in advance for your help.
We are currently planning our home’s technical systems. We will be installing an air-to-water heat pump, and my husband saw these Nest thermostats at his brother-in-law’s place and now absolutely wants them. Setting aside that these devices are quite expensive… how much do typical thermostats usually cost? Of course, there are probably all kinds of price ranges, but I mean the standard white or gray control units. Does anyone have experience with Nest? Do they just look good, or are these thermostats also effective? Can you tell the heating specialist, “Hey, skip your usual thermostats and install these ones instead?”
Thanks in advance for your help.
Bautraum201520 Oct 2015 10:32Sebastian79 schrieb:
Why not use a mechanical ventilation system with heat recovery? Just curious. We are building in a lakeside village with five houses, three of which are large farms with livestock operations. During the day, the smell can be quite strong, and odor particle filters are not effective enough (we consulted extensively with experts on this). So, I would be essentially bringing the barn smell into the house every day.
Why are we building there? Because one of those farms is my family’s farm. I’m used to it. I have nothing against mechanical ventilation with heat recovery—I would have installed it myself. But for us, it would only run at night.
N
nordanney20 Oct 2015 10:38Bautraum2015 schrieb:
We are building in a small lakeside village with five houses, three of which are large farms with livestock operations. During the day, the smell can be quite strong, and particle filters for odors are not very effective (we have thoroughly researched this with relevant experts). So, I would essentially be bringing the barn inside the house every day.
Why are we building there? Because one of these farms is my family’s farm. I have no other experience. I have nothing against mechanical ventilation with heat recovery… I would have installed it myself. But in our case, it would only run at night. So you don’t open windows during the day to ventilate either? I imagine it could get quite stuffy, especially in summer.
Bautraum201520 Oct 2015 10:40Yes, it is quite complicated for us... the stable windows are opened intermittently. Only locals like us know the exact timing of when to open the windows.
Apart from that, I don’t open my window during the day in summer anyway, especially at 35°C (95°F).
Apart from that, I don’t open my window during the day in summer anyway, especially at 35°C (95°F).
We don’t have a mechanical ventilation system with heat recovery either, but we can regulate the temperature quite well using the ERR.
I can adjust the temperature in the children’s room early in the day according to the weather. By the afternoon, the temperature is set. Of course, weather conditions can sometimes disrupt this plan. However, we’re not heating up fully each time, just managing the difference between a comfortable daytime temperature of 20°C (68°F) and a slightly lower temperature of around 18°C (64°F), which is also comfortable at night.
I still don’t understand why I have to heat my guest room to 20°C (68°F) when I only need it at that temperature a few times a year. Someone will have to explain that to me.
I can adjust the temperature in the children’s room early in the day according to the weather. By the afternoon, the temperature is set. Of course, weather conditions can sometimes disrupt this plan. However, we’re not heating up fully each time, just managing the difference between a comfortable daytime temperature of 20°C (68°F) and a slightly lower temperature of around 18°C (64°F), which is also comfortable at night.
I still don’t understand why I have to heat my guest room to 20°C (68°F) when I only need it at that temperature a few times a year. Someone will have to explain that to me.
S
Sebastian7920 Oct 2015 11:09You are mistaken in thinking that this consumes a lot of energy – due to the self-regulating effect, it is actually more efficient than isolating the room and including the other rooms.
Besides, it always sounds so dramatic – as if a power plant is starting up.
Besides, it always sounds so dramatic – as if a power plant is starting up.
B
Bauexperte20 Oct 2015 11:31Hello D’Artagnon,
Maybe I can explain it as a practitioner.
Imagine a pot of water on your stove that you want to keep warm constantly. To do this, you just need to bring the water to a boil once, then set the temperature so the water simmers continuously. The energy costs are manageable and efficient because you only need to maintain the desired temperature (simmering). However, if you let the water cool down first, you have to add energy again to bring it back to a boil. Repeating this cycle regularly becomes an expensive process.
It’s similar with heated rooms; constantly changing temperatures require more energy because, on the one hand, adjacent rooms will balance out the temperature differences, and on the other hand, heating up a room from cold uses significantly more energy than keeping it at a constant temperature.
Practical example from my own experience: years ago, we lived in the ground-floor apartment of a two-family house, and I was always annoyed (I was responsible for preparing the utility bills for the entire house) that my heating costs included heating the upper apartment. The tenant in the top-floor apartment not only benefited from the heat rising but also from the fact that we liked it warm in our apartment. As a result, she consistently paid significantly less for heating than we did.
At that time, I started building a sales network for radiant heating systems and learned a lot about heat demand calculations, building materials, and their heat management. Also, I understood how pointless nighttime setbacks (which are basically letting the pot of water cool down) of the heating system really are, because the system then has to reheat the cooled water in the morning. So, I spoke with our landlord, explained the physical processes involved, and eventually got permission to turn off the nighttime setback. From that point on, it ended that the ground-floor apartment paid for the heating of the top-floor apartment. Of course, the annual consumption figures were not exactly the same but close enough for both bills to be considered “normal.”
This experience still leads me to strongly advise every builder never to change a system once it is set up. It is precisely the constant adjustment of systems (in this case, the heating system or the pot of water) that causes unnecessary costs, like a burden.
Best regards,
Bauexperte
Musketier schrieb:
I still don’t understand why I absolutely have to heat my guest room to 20°C (68°F) when I only need it at that temperature a few times a year. Someone has to explain that to me.
Maybe I can explain it as a practitioner.
Imagine a pot of water on your stove that you want to keep warm constantly. To do this, you just need to bring the water to a boil once, then set the temperature so the water simmers continuously. The energy costs are manageable and efficient because you only need to maintain the desired temperature (simmering). However, if you let the water cool down first, you have to add energy again to bring it back to a boil. Repeating this cycle regularly becomes an expensive process.
It’s similar with heated rooms; constantly changing temperatures require more energy because, on the one hand, adjacent rooms will balance out the temperature differences, and on the other hand, heating up a room from cold uses significantly more energy than keeping it at a constant temperature.
Practical example from my own experience: years ago, we lived in the ground-floor apartment of a two-family house, and I was always annoyed (I was responsible for preparing the utility bills for the entire house) that my heating costs included heating the upper apartment. The tenant in the top-floor apartment not only benefited from the heat rising but also from the fact that we liked it warm in our apartment. As a result, she consistently paid significantly less for heating than we did.
At that time, I started building a sales network for radiant heating systems and learned a lot about heat demand calculations, building materials, and their heat management. Also, I understood how pointless nighttime setbacks (which are basically letting the pot of water cool down) of the heating system really are, because the system then has to reheat the cooled water in the morning. So, I spoke with our landlord, explained the physical processes involved, and eventually got permission to turn off the nighttime setback. From that point on, it ended that the ground-floor apartment paid for the heating of the top-floor apartment. Of course, the annual consumption figures were not exactly the same but close enough for both bills to be considered “normal.”
This experience still leads me to strongly advise every builder never to change a system once it is set up. It is precisely the constant adjustment of systems (in this case, the heating system or the pot of water) that causes unnecessary costs, like a burden.
Best regards,
Bauexperte
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