Many wishes, little space…
Designed, Assembled and Installed at Don of Havast.eu (from Lisse in the Netherlands)
Victron equipment supplied and set up by Technocomfort.nl
The ventilation has been improved in the meantime with a 2nd large extractor and a grille for intake from the interior. Both fans are controlled in 2 steps with a thermostat. The heat is directly discharged to the outside. So far with outside temperatures up to 35℃, no problems (max 40℃).
An almost perfect use of space. Super performance 
Thank you very much for these pictures. 
Tight and tidy 
Perfect until the first problem arrives…
Well done, what a space optimization, but we must all wonder how you wire the 2 Multi 
Connecting the MPs is as follows…
All batteries are fixed on a rack, free from the floor. This creates space under the batteries for a lot of cabling. We have modified the MPs a little bit. The I0II switch has been moved from the bottom to the front and we have made 2 ‘lifting’ eyes on the top. With a tension strap and some support blocks we can now hang the MPs above the installation, cable it, connect it and then lower it into the brackets. Finally we place the 2 Optima starter batteries. By the way, we have also moved the BMS cables of the LiFePO4s from left to right, because this was more convenient. The cables are flexible and as can be seen on the photo this is quite easy to do.
@Ludo - A good detailed design and a very professional installation is very important. Especially in such a limited space. Everything is very well thought out and very professionally installed. So far without major problems 
Very nice! Would be curious to see a heat signature under load with a thermal camera.
Yes would be interesting to see
I have a 3phase multiplus 2 3K setup in a separate room in the house, 1,5M x 1,5M x2,5M and that room gets above 45 degrees celcius in summer without active ventilation
With active ventilation (285M3/H) it never gets warmer than outside temp
Yes, exactly. Not sure if you remember my post about the mountain cabin with the three Quattro’s. Well we now have a cooling issue there. There is 0 degree celcius outside and we get tempreture warnings on the Quattro’s if 75% load is on them for more than an hour. Now we are shipping out extractore fans.
The setup is neat, all I am worried about is the solar chargers in summer with heat sinks covered.
