Burner Heat Exchange Techology

Which ones? Links? Models? Are you talking about a more efficient or multiple pass burner or separate heat exchanger? I saw a Landa Ecos with a carpet-cleaner type heat exchanger and it seemed like junk. I would be curious about real world experience also. As far as adding a heat exchanger with plumbing, connections, automatic diverter for when water flow stops - not good in my opinion.
 
tomtucson said:
Which ones? Links? Models? Are you talking about a more efficient or multiple pass burner or separate heat exchanger? I saw a Landa Ecos with a carpet-cleaner type heat exchanger and it seemed like junk. I would be curious about real world experience also. As far as adding a heat exchanger with plumbing, connections, automatic diverter for when water flow stops - not good in my opinion.
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Here's an example:

photo.JPG
http://www.powerwash.com/pressure-w...e-hot-water-high-efficiency-power-washer.html
 
Those are aaladins. Unless things have changed, they have not been designed for the rugged applications of mobile use.
 
I do, but the machines with the heat exchangers haven't been made for mobile use. If they had, I would have bought them. A 25% fuel savings would add up really quickly for me.
 
Scott Stone said:
I do, but the machines with the heat exchangers haven't been made for mobile use. If they had, I would have bought them. A 25% fuel savings would add up really quickly for me.
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Is that because this technology can't be made for mobile use? What about Landa - same thing?

It seems to me that this technology (in mobile form) would behoove any manufacture.
 
I am not sure why, that is just what I was told by my original distributor. Of course, there could have been a lot of reasons I was told this, and honestly, I found that he was not totally honest with me in a lot of different ways. I was also looking at them very early in their production run, so they might not have been totally sure of what they were going to be able to do with the machines.
 
Sounds like whoever makes this happen will be selling a lot of these pressure washers that are more fuel efficient to save contractors money.

I would think that many companies that make pressure washers would be looking into this as it is a great selling point for pressure washers, even if it was only 15% or 20% fuel savings when running hot water, it will add up for all companies, the larger companies will see huge savings fast.
 
I honestly don't know what the design is behind their machine, but there have been dual pass coils around for a long time. These fire at one end through a wrap of coil, bounce off a ceramic end cap, and back up between an outer wrap of coil and the wrap that just got heated in the inner coil. They're pretty fuel efficient, but are prone to soot problems, and are rather gpm limited.
 
I wonder if they are using heat exchangers like the carpet cleaning rigs have where they use the exhaust to help pre-heat the water before going through the coil?

Thanks for the info Russ.
 
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