He isn't Peter, that I guarantee you. That is just a typical response & an easy reply.
Why oh why haven't you researched what most people consider the most vital aspect of a gas heater :
This is my gripe, people who many assume to get it right & to be honest SHOULD DO, very often don't! :
People that "assume" faster flow= faster work, not always true! People that assume they can just unleash any ill-conceived crap on us & we'll work round it.
It's & just breeds less confidence.
You are right faster flow doesn't always mean faster work, but much more often than not it does.
I have made something available that people wanted. First and foremost I developed the hot water system to meet the needs of my customers. During the freeze up here in January I had customers visit me with 400L blocks of ice in the back of their vans, looking at me and asking what can be done. People that couldn't pay their mortgage that month never mind lay out over £2000 for a heated system. These people were my priority, and the system that they have will work perfectly with the new HotWash. If it can help other people out then fair enough all the better, and if possible i can work towards getting a system to suit everyone.
Now remember why we want hot water. Yes in test my customers reported advantages of hot water even in the summer, with reports that they wanted hot water in the summer as well as winter, but the hot comes into it's own to keep you working in the freezing weather.
The system I have will do this for everyone. You personally as far as I can see would have two choices for using hot water with my system. Firstly turn the flow up from your pump, this would give you hot water and keep you working in freezing weather. Secondly set up your system to circulate hot water through your heater into the top of your tank while your out working, again this would keep you working in freezing weather.
Now you may have to change your technique for the first choice but not such big problem if it was the difference between working or not working, even if you did use double the water and only worked a half day. The second choice would mean you would have to have a second pump, again not such a big deal when you consider the alternative. I know the guys above would be glad of any of the choices above when the alternative was no money coming in for 6 weeks.
I have a local guy coming next week who has 20 people working with backpacks from a large transit van. My system once fitted will be keeping all his men working when otherwise they wouldn't be. Now this guy won't be blaming me for not producing a small heater that can be fitted to each backpack, he will be grateful for the chance to get his men working when normally they wouldn't be.
This is the first time that I am aware of where the water flow has been mentioned as a problem, and it is noted and will be worked out one way or another, just like any other things brought to my attention. Remember also I have not tested the minimum water flow that the heater will reliably run at, it could very well run at the pressure you require. I will probably know the answer tomorrow.
Peter Fogwill
www.window-tools.com