I'm getting slightly tired of messing with my immersion heater and different running times pending my start temp etc etc. If I had the spare money I would certainly upgrade like daz has done, but that's for another day.
However, I may be interested in using a similar gas boiler and the above question will help me understand a bit more about it. But I'm thinking of running my ibc tank water into it and filling my tank with, say 70 degree water at night, ready for the next day, instead of using it in the van. Is this possible?
(sorry I'm asking another question on top of the one posted)