@moin @billiglarper Yes and no. It's maximally efficient when you pump outside _warmth_ into your _cold indoors_. But realistically, when does this ever happen? Maybe when returning from vacation on the first warm day after a week of cold ;-)

Technically though, it's _always more €-efficient_ than other types heating, like gas, infrared, etc.

I'm very happy with the smallest #Mitsubishi MSZ-RZ units: https://www.mitsubishi-les.com/de-de/wissen/klimaanlage-zum-heizen-und-kuehlen-30400.html

Check out also https://www.youtube.com/watch?v=sj39hpf2sGw & https://www.youtube.com/watch?v=XoAPgEnjUJg :-)

In the biggest purchase by a Japanese company in the American shale sector, Mitsubishi agreed to buy Aethon Energy Management’s U.S. gas and pipeline assets for $5.2 billion. https://www.japantimes.co.jp/business/2026/01/16/companies/mitsubishi-aethon-gas/?utm_medium=Social&utm_source=mastodon #business #companies #aethonenergymanagement #mitsubishi #us #energy #lng #gas

Mitsubishi Diatone D-160 (1985)

https://audio-database.com/MITSUBISHI-DIATONE/diatonesp/d-160-e.html

#HackerNews #Mitsubishi #Diatone #D-160 #Vintage #Audio #Retro #HiFi #Sound

Japan’s major trading houses are facing a prolonged slump in iron ore and coking coal prices as Chinese steel exports flood into Asia and beyond, constraining profits for at least the next six months. https://www.japantimes.co.jp/business/2025/11/06/companies/china-steel-exports-trading-houses/?utm_medium=Social&utm_source=mastodon #business #companies #china #steel #mitsubishi #sumitomo #marubeni #itochu

One of Japan’s leading prefectures for offshore wind power is urging authorities to reissue a tender for two critical projects after Mitsubishi Corp. withdrew from the planned developments due to rising costs. https://www.japantimes.co.jp/business/2025/10/17/akita-new-tenders-offshore-wind/?utm_medium=Social&utm_source=mastodon #business #emissions #energy #wind #akita #hokkaido #mitsubishi #renewables

The government began looking into the factors that led a consortium including Mitsubishi and a Chubu Electric Power unit to withdraw from wind power projects in three areas off Akita and Chiba prefectures. https://www.japantimes.co.jp/business/2025/09/12/companies/government-review-mitsubishi-exit/?utm_medium=Social&utm_source=mastodon #business #companies #mitsubishi #wind #renewables #energy

Mitsubishi’s wind-power retreat is a blow to Japan's alternative-energy goals, although researches say the situation might have been unique. https://www.japantimes.co.jp/business/2025/08/28/economy/mitsubishi-wind-power/?utm_medium=Social&utm_source=mastodon #business #economy #mitsubishi #wind #renewables #energy #environment

An Italian court on Thursday found three Japanese nationals, including an ex-executive of a former subsidiary of Mitsubishi Corp., guilty over polluting water with PFAS. https://www.japantimes.co.jp/environment/2025/06/27/italy-court-pfas-ruling/?utm_medium=Social&utm_source=mastodon #environment #pfas #mitsubishi #miteni #italy

Lawson and KDDI are beta testing a futuristic convenience store at Takanawa Gateway City. https://www.japantimes.co.jp/business/2025/06/23/companies/tech-lawson-store/?utm_medium=Social&utm_source=mastodon #business #companies #lawson #conveniencestores #mitsubishi #kddi #telecoms