Mine are still sat in their boxes... I checked the voltage on a few.. waiting for a clamp meter before I think about top balancing.. prob will wait till I get an IR meter as well... so a few things to think about .. I think they will be ok till I get my act together.. must admit I’m a little...
The stuff that people use on stove pipes should be fine.. I’ve used heat resistant sealant that is applied with a sealant gun.. it doesn’t seem to smell much either when first applied.. may need to be gentle with the heat at first though...
My point being that you need to go through the thing checking its weak points...until it works properly...something that should have been done before it left the factory..
Just as a side note... I bought a Chinese quad flail mower ... petrol engine powered... and it was shite... it just didn’t want to do what I expected it should do...
however..
After a few modifications of my own .. it worked much better..
So I think with some stuff made in China.. be prepared to...