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:
You are mistaken in thinking that this costs you a lot of energy – due to the self-regulating effect, it is actually more efficient than isolating the room and including the other rooms instead.In general, there is the law of conservation of energy, which I hope you do not doubt.
As long as I do not ventilate energy outside, energy can only leave through exterior walls, windows, the roof, and the floor slab.
An exterior wall with a temperature difference between inside and outside reduced by about 4°C (7°F) should release less energy to the outside than a fully heated room. So, the house overall should require slightly less energy. It is clear to me that these are not huge amounts.
However, you claim that the self-regulation effect of the underfloor heating causes higher energy consumption. Since energy cannot be lost according to the law of conservation of energy, it must leave the house somewhere. But at which point?
S
Sebastian7920 Oct 2015 11:35No, you save energy through the self-regulating effect – you destroy it with the ERR.
Bautraum201520 Oct 2015 11:37That makes perfect sense to me!
So why are ERRs still installed with air-to-water heat pumps and underfloor heating? That system is completely obsolete.
So why are ERRs still installed with air-to-water heat pumps and underfloor heating? That system is completely obsolete.
S
Sebastian7920 Oct 2015 11:39Because it is practically standard and sells well (the technology is quite inexpensive, but you can easily end up paying four figures for an entire house).
Bautraum201520 Oct 2015 11:40Is it just about the money? When I look at it, the recommended system controller from Vaillant costs... 450€ each.
S
Sebastian7920 Oct 2015 11:42The system controller from Vaillant is included with my heat pump and should not be confused with a thermostat for a supplementary heating element (ERR).
You must have misunderstood or the hotline gave you incorrect information – you can use it as a remote control, but you can also leave it installed on the heating unit.
I didn’t find it unattractive, and it will be installed in the living room.
You must have misunderstood or the hotline gave you incorrect information – you can use it as a remote control, but you can also leave it installed on the heating unit.
I didn’t find it unattractive, and it will be installed in the living room.
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