Renting in Germany means no split AC bolted to the facade, so my top-floor 1970s office got the consolation prize: a single-hose "monoblock" portable.
Plot twist: the compressor was never the problem. The window was. These things leak most of their cooling back in through the unsealed hole the exhaust hose runs through.
My fix: a cheap XPS panel clamped under the roller blind, hose port sealed with rubber tape. No glue, no marks, comes out when summer ends. Dropped the room 6 to 7 °C in 45 minutes.
New post:
https://blog.hofstede.it/a-monoblock-ac-is-only-as-good-as-its-window-seal/
#DIY #AirConditioning #Homelab #Germany #Heatwave
Larvitz :fedora:
npub1fj…jaq90
2026-06-07 10:02:27 UTC
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npub1fj6u59lnses9xu6xa6ewugrfg2e639lg32r24383525xq3deyuaspjaq90Seen on
wss://relay.momostr.pinkPublished at
2026-06-07 10:02:27 UTCEvent JSON
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"content": "Renting in Germany means no split AC bolted to the facade, so my top-floor 1970s office got the consolation prize: a single-hose \"monoblock\" portable.\n\nPlot twist: the compressor was never the problem. The window was. These things leak most of their cooling back in through the unsealed hole the exhaust hose runs through.\n\nMy fix: a cheap XPS panel clamped under the roller blind, hose port sealed with rubber tape. No glue, no marks, comes out when summer ends. Dropped the room 6 to 7 °C in 45 minutes.\n\nNew post:\nhttps://blog.hofstede.it/a-monoblock-ac-is-only-as-good-as-its-window-seal/\n\n#DIY #AirConditioning #Homelab #Germany #Heatwave",
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