My one and only post on this thread, as I just want to take the conversation away from P@fs heater thread,
From my experience of using warm water, cold water, hot water by every different method out there.......
I find hot water gives me less issues. Of course hot water with the same tds as cold water will dry the exact same, but it’s in the cleaning.
I can now clean extremely quickly with near perfect results. Before, if I cleaned this quick, I would have the odd spot or two.
My reasoning on this is that hot water dissolves the dirt quicker and rinses off the glass quicker, ie it flushes the dirt away faster than cold water, meaning I can also work Faster.
Hot water also has the added benefit of drying quicker. Even In winter the windows I clean are dry by the time I’ve wrote my payment cards up. That means less time for pollutants to stick to the wet droplets in breezy days.
Can cold water get the same results as hot? Of course it can. The benefit of hot for me is the speed that i can clean at, the hoses being much more manageable, the heat radiating through the hose and pole keeping my hands warm, and the selling point. When you tell Customers or even show them the system they are all very impressed. Would that mean they will Gladly accept a few £ increase next year because their window cleaner uses a fancy hot system? You decide.
I had money that I was happy to invest back into the business, and now this heater will last me years and years at the cost of about £5 per day.
Again, this is all my personal Experience, for anyone looking into a heater like the 9kw Grippatank setup that I’ve got.
Ta ta for now.
