ᐅ Heating circuits/thermostats for living/dining/kitchen areas with underfloor heating/heat pump

Sebastian79 schrieb:
Temperatures for toddlers can be debated…

Since we have experienced that most toddlers kick off their covers anyway (which 2.5-year-old still wants to sleep in a sleeping bag?), cool bedrooms don’t really make much sense in my opinion. At 18°C (64°F) in the children’s bedrooms, we wouldn’t even need them, as we would have a subscription at the pediatrician’s office.

Why exactly are these temperatures considered too high?

People say this about infants, but I also think it’s exaggerated – what are people supposed to do in attic apartments?

When we had our first child, we still lived in our apartment for one more year. It had a central heating system, gas heating, and hardly any insulation. The bedroom stayed around 16 to 17°C (61 to 63°F) for most of the year (even cooler than other rooms in summer, since it was on the ground floor of a house built into a hillside). Despite this, the child never caught a cold or got sick during that year. So, it’s not harmful. Our second child, born in the house with a warmer bedroom, did catch colds more often—but they also had more opportunities to catch illnesses. Of course, your own children aren’t enough for a reliable study... Still, in our house, we don’t have large temperature differences either.

In my opinion, it’s completely unnecessary to plan for three thermostats in one room. How are you supposed to divide the air in a single room? We have a “large” open-plan living-dining area with an open kitchen, almost 60m² (645 sq ft), and we installed a total of six circuits with just one thermostat. I have to say, it works quite well: with a supply temperature of 28°C (82°F) and an outside temperature of 0°C (32°F), I can reach a maximum of about 24°C (75°F) in the room. When I turn the thermostat down, I can easily lower the temperature in the large room to around 20°C (68°F). The opposite is probably more difficult. When the living-dining area is set to 24°C (75°F), the small hallway is also heated, and its temperature doesn’t drop significantly, even if I try to adjust it down there.

I would definitely recommend installing thermostats (whether you use them later is up to you, but they don’t cost much), and generally, a heating circuit should not be larger than 10m² (108 sq ft) or 120m (394 ft) in length. The closer the heating pipes are spaced, the more efficient the heating tends to be, so don’t try to save a few euros here.

Sebastian79 schrieb:
- what are people supposed to do in attic apartments?

And the hundreds of millions of people living in the tropics.

Or is sleeping at 21-22°C (70-72°F) only harmful for Germans?

oleda222 schrieb:
And the hundreds of millions of people living in the tropics.

Or is sleeping at 21-22 degrees only harmful for Germans?

I once read that it’s not the higher temperature itself that causes poor sleep, but rather the lack of oxygen, for example if you keep the window closed. In such cases, a controlled ventilation system is definitely valuable.

The comparison with the tropics is somewhat flawed since air conditioning is often installed in warmer countries. Otherwise, you do tend to sleep worse when it’s too warm. For example, in Australia, I set the air conditioning to 27°C (81°F), which felt comfortable when coming in from outside and was also good for sleeping.

If it had been set any lower, it probably would have resulted in a bad cold...