Is a multisplit air conditioner suitable for heating?

I believe also has split air conditioners installed. Just cheap ones. And in terms of efficiency, they are not that far behind the expensive brands. You don’t get back the extra cost for a Mitsubishi.

And electricity only costs 45 cents for a few. The average is 36 cents. With photovoltaics then 10.

Portraying a ruthless corporation as a premium reference is simply disgusting of you.

(If you really don’t know what you’re doing: Google: wipe out bluefin tuna)

Better to stop with the offtopic. It doesn’t help anyone right now.

Better stop with the offtopic. It doesn't help anyone right now.

No. That has to be said! You can complain about offtopic as much as you want. Such a system will not come into my house! I have decided on an air-to-air heat pump from Panasonic!

I believe has definitely also installed split air conditioners. Just cheap ones. And efficiency-wise, they are not that far off from the expensive brands. You don't get back the extra cost for a Mitsubishi. And electricity only costs 45 cents for a few people. The average is 36 cents. With photovoltaic then 10.

Yes, I bought the first cheap one in 2003 and moved in 2005 and bought 2 new cheap ones there. One of the repurchased ones broke last year. Which was replaced this year by a branded (inverter) device. I don't cool the whole house, since my living room is always cool due to its location, but only the 3 bedrooms and only before going to sleep.

... and only before going to bed.

Everyone is allowed to cool as they wish – but for most, this approach will likely result in going to bed at 20° and starting to sweat at 25° after three hours. If you let the masonry warm up, a few hours before going to bed are usually not enough to keep it comfortable throughout the night.

Yeah, better to keep it constantly at 23 - 24° (feels surprisingly cool in summer) than to cool down to 18° in the evening and let it heat up to 28° during the day...