The Italian outside models are theftproof, just rainproof - and they have lowish flowrates.
So for your latest face saving attempt, you've added theftproof and high flow to your criteria.
Can't answer for theftproof.
Now Italian external combis and lowish flow rates? I presume you say lowish, not plain low, to cover your sorry a***.
The Meteo Green is made up to 35kW to DHW, taking it over the low flow category. But then you didn't know they existed anyway so your guessing of their flow rates just show you're struggling to find them on your search engine.