Hi, we had an Bosch Worcester external fitted about 4 years ago. 10 yrs g/tee. We had a local firm fit for us.
Easy enough job for them, took 2 days with some extra external pipework. Its survived 4 years of wet, cold Cumbria Weather with no issues at all. its a big old beast, so we put some bamboo screening around it.
It wasn’t cheap (Nearly £8k for everything)