Larvitz Jun 7

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

A Monoblock AC Is Only as Good as Its Window Seal

I moved into a top-floor 1970s apartment in one of the warmest corners of Germany, work from home, and needed the office to stay below “thinking is hard now”. A single-hose portable AC is a thermod...

Larvitz Blog
Show threadhub
@Larvitz - may I ask why did you go for the DIY solution rather than off the shelf (e.g https://de.trotec.com/shop/pac-rollladen-fensterblende.html)? Did you consider a mobile split like midea portasplit which have been hyped last year? I was considering upgrading my Monoblock from 2020.
PAC Rollladen-Fensterblende

PAC Rollladen-FensterblendeVereinfacht die Befestigung des Abluftschlauches am Fenster und erhöht die Kühleffizienz von mobilen Klimaanlagen

Jun 7 at 10:09amWeb
Show threadLarvitz Jun 7
@hub I already had the AC from the previous apartent. Buying an entirely new device was not a consideration. The XPS insulation is totally sufficient for my small room/setup and it was dead cheap (less than 20€ in the utility store)
Show threadhubJun 7
@Larvitz yeah makes total sense. 20€ is a totally different level of investment than 800 or so what you end up for a Midea. Hope it works well for the rest of the summer!