I think Vetus state their plastic waterlock should not exceed 70 C.
Mine is 0.2m from the exhaust elbow of a 23 hp Volvo MD11c. Yesterday I measured 50 C with an infra red thermometer on the outside of the plastic after 5 and 10 minutes at full ahead.
I would consider North Channel approach to Hurst where LW 02/07/23 is 1600 BST (Easytide).
This gives five hours with fair tide and wind, Hurst to Gosport.
Another vote for the Ketotek.
VOLTAGE to two decimal places along with the CURRENT and POWER displays helps me keep my "leccy" diet under control. I don't use the ENERGY display.
Centaur forecabin.
I used 50x50x10mm hardwood blocks rather than softwood to make unscrewing and rescrewing more secure.
"No more nails" has worked well for six years.
The biggest problem was finding the blocks to screw into as I put the ply panels up. I got better at it after the first twenty...
My experience also. It's annoying when I have to open a litre of UHT without the prospect of using it all the same day.
Sainsbury's do UHT milk in half litre containers and in France you can get it in 250ml containers.