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.
Sebastian79 schrieb:
How generous
To give you one more thought for the night and to turn your own statements around:
Your always favored solar gains – according to you, without EER they lead to overheating. That is complete nonsense, because with EER the room is suppressed, it heats up. The underfloor heating doesn’t transport anything here, but rather, to put it simply, continues to heat up.
Without EER, combined with proper hydraulic balancing, the system removes the heat and distributes it throughout the entire system. And don’t even try saying the whole house overheats – nobody generates that much solar gain during the heating phase.
..
But I’m just a stupid IT guy, who obviously cannot argue with a physicist. At least I know how to use quotes properly .I can’t help it – here is an argument that says EXACTLY the opposite of your previous statement! An IT specialist should be able to see that; after all, you learn enough logic in your studies :P
On one hand, you say the underfloor heating is too slow to react to short-term changes, and now you say the underfloor heating distributes the heat added elsewhere within the whole system. That contradicts itself 100%.
The only thing that can respond to short-term energy inputs is an EER, because underfloor heating on its own is too slow.
A properly adjusted heating system with EER does not suppress one or more rooms, but blocks short-term excessive energy input so that on balance, the heating is exactly right, not too much, and thus corrects the only disadvantage of underfloor heating: its sluggishness.
Sebastian79 schrieb:
Forget it – these are just individual opinions that don’t mean anything. The practical examples are the same – all nonsense.
But luckily, my heating engineer made exactly the same points without me even having to ask. That’s how I knew I had found a good one .
Saruss will probably come in soon with the relevance of a 1000-liter (264-gallon) buffer tank... Very good, factual arguments.
Mycraft schrieb:
Come on, just drop it... you simply don’t understand the concept... Can you just stop? This stubborn, generalizing claims and sweeping statements are not convincing. Personal attacks aren’t either.
Now I’m also a bit puzzled and curious.
We have heat recovery ventilation (HRV) units in every room throughout the house and I’m wondering whether we should even be using them or not?!
However, the arguments “against HRV” haven’t fully convinced me yet.
@Mycraft If I consider the example with the sun and WITHOUT HRV, it would mean the following:
The sun heats up the room air. The room air then heats up the screed and the underfloor heating? (The question is, how long does that take? I’ve always heard that underfloor heating takes about 1-2 days to heat up a room, so wouldn’t it be the same in reverse?)
If the water in the underfloor heating in that room gets warmer and constantly circulates, including to other rooms and eventually back to the return line of the heating system, then the heat pump “knows” it needs to use less energy? But I still wonder how long this process takes? It can’t provide a quick relief from the “heat” in the room, right?
Or have I completely misunderstood this? I’d appreciate some clarification.
We have heat recovery ventilation (HRV) units in every room throughout the house and I’m wondering whether we should even be using them or not?!
However, the arguments “against HRV” haven’t fully convinced me yet.
@Mycraft If I consider the example with the sun and WITHOUT HRV, it would mean the following:
The sun heats up the room air. The room air then heats up the screed and the underfloor heating? (The question is, how long does that take? I’ve always heard that underfloor heating takes about 1-2 days to heat up a room, so wouldn’t it be the same in reverse?)
If the water in the underfloor heating in that room gets warmer and constantly circulates, including to other rooms and eventually back to the return line of the heating system, then the heat pump “knows” it needs to use less energy? But I still wonder how long this process takes? It can’t provide a quick relief from the “heat” in the room, right?
Or have I completely misunderstood this? I’d appreciate some clarification.
How do you manage areas without ERR where varying temperatures are desired?
For example, a guest or workroom. Under normal use (95% of the year), light heating to 15-16°C (59-61°F) is sufficient. When I have guests or want to use the room, the temperature should be around 20°C (68°F).
Temperature in a child’s room:
Good weather – child plays outside – lower temperature
Bad weather – child plays inside – higher temperature
With ERR, I can control this. Without it, I would have to heat the room to 20°C (68°F) every day and then lose the warmth at night when airing out.
For example, a guest or workroom. Under normal use (95% of the year), light heating to 15-16°C (59-61°F) is sufficient. When I have guests or want to use the room, the temperature should be around 20°C (68°F).
Temperature in a child’s room:
Good weather – child plays outside – lower temperature
Bad weather – child plays inside – higher temperature
With ERR, I can control this. Without it, I would have to heat the room to 20°C (68°F) every day and then lose the warmth at night when airing out.
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