Boiler outer cover

You might as well leave it there. Unless you are an expert panel beater and can get it back in shape.

Maybe another one will fall of a different caravan when no-one else is looking?

It's designed to keep road grit and creepy crawlies out of the burners, Husky, so I'd replace it. It will be cheaper than having to get the gas burners sorted later. 

Thought so, might have do a temporary repair with a roll of gaffa tape ,till I can get a new one 

Tape is an absolute essential in our hobby. 

Just had a look on e-bay and the cover is £29.99 ,a trip to the caravan breakers I think .......

Navy - I'm truly appalled that you should suggest such a thing ....

....surely it's got to "fall off" another motorhome?!! 

is it a Carver Cascade?

my SIL's van has one and they look a bit delicate compared to Truma Combi.... 

How true is that statement? 

As we drove through Belper on Monday minding our own business heavy traffic parked cars but no issues lorries and cars passing each other. Oncoming red van unnecessary slight swerve towards us then away but enough to clash wing mirrors. HUGE noise pedestrians all turning to look, wing mirror onto the drivers door. Look in van drivers eyes - amusement,  amazing the details you take in 😉. Hubby pushed the wing mirror back out, it's floppy 😢😲. Very lucky mirrors in tact. Pulled over when safe and hubby applied gaffa tape and we reached Ferry Meadows. Visit to our son nice to catch up but his degree came into play 😂😂. Sports Therapist by trade and taught strapping. Between them they removed the original gaffa tape reset it and he taped it - brilliant as he says it won't move! Such a shame we only had silver gaffa tape, probably a good target for another nice van driver. 

It's a Truma combi

wow, tne Combi has a pretty robust (i thought) cover on tne gas outlet.

in fact. as we had an oven (with an outlet fan installed) we have two such covers....tough as old boots i thought......wrong?