Burners burners burners

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bears

New member
I recently took a risk and traded a $300 trash pump for 2 hydrotek hot boxes and a 525 gal water tank. I was told the burners didn't work but maybe I could use one for parts and get a working one out of the 2. So I cleaned the coils and burners inside and out and rewired them. Now they bolthe are working. The only problem is they are the 14" models so they can't keep up with a high gpm machine. So I am wanting to "hot rod" them. What's the max burner nozzle size that will work?
 
bears said:
I recently took a risk and traded a $300 trash pump for 2 hydrotek hot boxes and a 525 gal water tank. I was told the burners didn't work but maybe I could use one for parts and get a working one out of the 2. So I cleaned the coils and burners inside and out and rewired them. Now they bolthe are working. The only problem is they are the 14" models so they can't keep up with a high gpm machine. So I am wanting to "hot rod" them. What's the max burner nozzle size that will work?
Click to expand...

Bring on the pics!
 
Pics will have to wait till tomorrow. I am home now. The hot boxes are at the shop.
 
Hmmm.. is there a carpet cleaners' blog !??
post 'em for sale to someone sick of "heat exchangers"
and with the cash, getcha some larger heater !
those 14" hearters are PERFECT for carpet or tile n grout system.

Or, maybe someone here would like to be doing carpet with their existing pump system...
add a "low-pressure-regulator" on a "steam-valve",
and bigger systems can be tamed to lower-pressure, at lower-flow.
Just add that smaller heater for lower-flow (without control problems).
Respect the tech ! ..
He can help you in more ways than you can learn "on your own" Eh?

So, are the burners 12vDC or 120vAC ??
Got Flow switches, or just pressure switches ??
..it's a safety thing... Especially at higher temps. (over 180degr.F)
 
they are 12v burners with the good relays and flow switches. I was thinking of hooking them up together for 600,000 btu's + or - 100,000.
 
You probably will not get much of a heat rise out of them due to their size but maybe have one connected to the other so one would be like a pre-heater, maybe 120 or 140 degrees then you have a higher temperature water going into the next burner and maybe that might work for the higher gpm machine?

I would like to know what Russ or Jerry or the others would say about that. They might just be too small.
 
Chris,
I think it would cost too much time to configure,
and the burn-effficiency would be too difficult to make reliable, on the existing units..

If we started from sratch..
I've always preferred a longer coil, with a longer burner-chamber like the American Kleaner units had, back in the old-days, but Karcher bought that company,
.. that "disappeared", ..and I'll hold my tongue right there.

I have a patentable heater design I want to bring to market in the next few years,
It will require less fuel, and burn more enviro-friendly.
I might partner with Farleys or Enviro-Spec on it, I have to talk to them both.
 
Sirocco Jerry said:
Chris,
I think it would cost too much time to configure,
and the burn-effficiency would be too difficult to make reliable, on the existing units..

If we started from sratch..
I've always preferred a longer coil, with a longer burner-chamber like the American Kleaner units had, back in the old-days, but Karcher bought that company,
.. that "disappeared", ..and I'll hold my tongue right there.

I have a patentable heater design I want to bring to market in the next few years,
It will require less fuel, and burn more enviro-friendly.
I might partner with Farleys or Enviro-Spec on it, I have to talk to them both.
Click to expand...

Good idea but I would at least apply for a patent before I talked to anyone about it. If they take it and run with your idea you have a much better legal footing to say they took your idea and ran with it.
 
Jerry. "cost to much to configure" ???? It would only cost me $5.00 for a jumper hose. That I already have.
 
Like Chris said, there's nothing wrong with linking them together, but the excessive coil length may cost you some pressure loss. A high limit on the first one, and a high limit and thermostat on the second one, and flow switches on both. If the first coil ruptures, you don't want the second one doing a "dry burn". You'll need about 40 amps to feed the battery to satisfy both at once. You'd have the versatility, too, of choosing "warm" water with one burner running, or "hot" with both fired up.
 
sell both and get a 12gpm burner
 
ok. Going back to my question. I am looking to get all the output I can out of these burners. What's the largest size nozzle I can use?
 
Russ covered functionality, it's doable,
..but the 35amp tax on the charging system is a problem..
If you can overcome that..
I think you can squish a 2gph fireball in that 14" heater..
Russ might have more detail.
for now, get a fuel-presssure guage in each of the fuel pumps.
You'll need that next..
If the burner has a #2.0 fuel nozzle already,
turn up the fuel pressure to (never above) 140psi,
and see if you can get it to burn clean with air adjustment.
A qualified tech shoulld be doing this for you, if you
are at all shakey on this.
Also be aware spray-angle in a 14" burner should be 60 to 80 degree depending on length in the interior fire-chamber.
gewt ANY of thuis wrong, and you'll have fuel dripping,
or soot building, and more wasted time..
A QUALIFIED tech would spend a full hour on this, and worth the $$
experimentation is ALWAYS more expensive, and risky !
 
bears said:
ok. Going back to my question. I am looking to get all the output I can out of these burners. What's the largest size nozzle I can use?
Click to expand...

Maybe 2 gph MAX, more likely 1.75. You're severely limited by the blower size on the standard DC burner...they'll only make so much air.
 
thanks for the info. I work on all my own equipment. Just never had any problems with my burners so I never had a chance to learn much about them. My local dealers are a joke. They want $300 for 150' of blue one wire hose. And don't know the difference between a upstream injector and a downstream injector. I would rather spend the time and learn how to do it myself. Although one of the burners burns so clean right now that I thought it wasn't working untill I noticed the water was hot. No smoke at all. Cleanest burn I have seen.
 
thanks Russ. I will make sure and have your number and the fire dept on speed dial when I work on them. LOL
 
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