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Topic: Color of Aqua hot boiler fluid(s) (Read 1207 times) previous topic - next topic

Color of Aqua hot boiler fluid(s)

Boiler fluid tank way low on coolant. (bad filler neck) have non solder type fill neck to replace with.
I do not know if the tank has red Antifreeze or has high dollar boiler fluid.
put a paper towel rolled up into the overflow tank and wife says that that fluid is orange.
Which one to refill with?

thnx
red
'02 40' U320t  4010WTFS Build 6036 1 slide
Motorcade # 17841
SKP 151920
Retired truck driver
 5 million miler
Still have itchy feet for travel

Re: Color of Aqua hot boiler fluid(s)

Reply #1 –
You need to get the model number of the Aqua Hot. Both the ELC and the safe to drink are red. The one with the coils around the tank use regular ELC and the one with the coils in the tank have to have potable coolant known as boiler fluid. The information should be in the book that came with the coach. I don't know what year they switched over '99 is still regular coolant.
1999 40 ft. U-320 wtfe build 5563 Chuck & Lynda's "Rollin' Inn"  2030 watts solar
prev. mh's 71 GMC 5 yrs. 73 Pace Setter 1 yr. 78 Vogue 5 yrs 81 FTX 40ft all electric 18 yrs. 1996 Monaco Signature 3 yrs.
2014 Grand Cherokee Overland
Dream as if you will live forever. Live as if you will die today.  James Dean

Re: Color of Aqua hot boiler fluid(s)

Reply #2 –
Call Aqua Hot technical support on Monday morning and ask them.  What you use will depend on the year and model of your unit.  Usually it's either Jessica Painter, or Jim Yates who answer.  Both are very good.

Chris

Re: Color of Aqua hot boiler fluid(s)

Reply #3 –
Model is 100-02
I just need to know which one is actually in the tank, as there is a possibility that the previous owner may have "updated " to the new style/type & I do not want to inadvertently mix them together.
'02 40' U320t  4010WTFS Build 6036 1 slide
Motorcade # 17841
SKP 151920
Retired truck driver
 5 million miler
Still have itchy feet for travel

Re: Color of Aqua hot boiler fluid(s)

Reply #4 –
I don't want to make a mistake so call Aqua Hot. When I do a Google search of 100-02 coolant the boiler type comes up.
1999 40 ft. U-320 wtfe build 5563 Chuck & Lynda's "Rollin' Inn"  2030 watts solar
prev. mh's 71 GMC 5 yrs. 73 Pace Setter 1 yr. 78 Vogue 5 yrs 81 FTX 40ft all electric 18 yrs. 1996 Monaco Signature 3 yrs.
2014 Grand Cherokee Overland
Dream as if you will live forever. Live as if you will die today.  James Dean

Re: Color of Aqua hot boiler fluid(s)

Reply #5 –
You can't update the Aqua Hot you would have to change the whole unit out they are completely different.
1999 40 ft. U-320 wtfe build 5563 Chuck & Lynda's "Rollin' Inn"  2030 watts solar
prev. mh's 71 GMC 5 yrs. 73 Pace Setter 1 yr. 78 Vogue 5 yrs 81 FTX 40ft all electric 18 yrs. 1996 Monaco Signature 3 yrs.
2014 Grand Cherokee Overland
Dream as if you will live forever. Live as if you will die today.  James Dean

Re: Color of Aqua hot boiler fluid(s)

Reply #6 –
I just checked Roger Burke's site and serial numbers before X00-07 take regular coolant. The x means any number preceding the 00 Yours being -02 is before the change. The ELC that is used in the engine is what is used. Also look at your recovery bottle mine is labeled what to use.
1999 40 ft. U-320 wtfe build 5563 Chuck & Lynda's "Rollin' Inn"  2030 watts solar
prev. mh's 71 GMC 5 yrs. 73 Pace Setter 1 yr. 78 Vogue 5 yrs 81 FTX 40ft all electric 18 yrs. 1996 Monaco Signature 3 yrs.
2014 Grand Cherokee Overland
Dream as if you will live forever. Live as if you will die today.  James Dean

Re: Color of Aqua hot boiler fluid(s)

Reply #7 –
Quote from: craneman –
I just checked Roger Burke's site and serial numbers before X00-07 take regular coolant. The x means any number preceding the 00 Yours being -02 is before the change. The ELC that is used in the engine is what is used. Also look at your recovery bottle mine is labeled what to use.
Thanks! OAT it's gonna be.( taking a chance that the previous  owner did not go with the new boiler fluid.
And the Texaco tag is obliterated.)
'02 40' U320t  4010WTFS Build 6036 1 slide
Motorcade # 17841
SKP 151920
Retired truck driver
 5 million miler
Still have itchy feet for travel

Re: Color of Aqua hot boiler fluid(s)

Reply #8 –
Mine is an '03 and uses regular ethylene glycol.

Re: Color of Aqua hot boiler fluid(s)

Reply #9 –
Quote from: Travelin' Man –
Mine is an '03 and uses regular ethylene glycol.

IIRC the changeover from ELC to GRAS non-toxic occurred somewhere in the 2003 model year, so never assume  ;)

If we were dealing with an unknown where there could potentially be a compatibility concern, would likely flush with distilled water and start with known new, recommended fluid.
Learn every day, but especially from the experiences of others. It's cheaper!  - John C. Bogle

2000 U320 36' non-slide / WildEBeest Rescue
2003 U320

Re: Color of Aqua hot boiler fluid(s)

Reply #11 –
Quote from: Travelin' Man –
I wasn't assuming................I've drained it out and replaced it.
The issue is not coolant compatibility. The fact that the later style A.H. has the fresh water inside the tank instead of on the outside  it is possible to get coolant in the water supply and Ethylene Glycol is poisonous. 
1999 40 ft. U-320 wtfe build 5563 Chuck & Lynda's "Rollin' Inn"  2030 watts solar
prev. mh's 71 GMC 5 yrs. 73 Pace Setter 1 yr. 78 Vogue 5 yrs 81 FTX 40ft all electric 18 yrs. 1996 Monaco Signature 3 yrs.
2014 Grand Cherokee Overland
Dream as if you will live forever. Live as if you will die today.  James Dean

Re: Color of Aqua hot boiler fluid(s)

Reply #12 –
Our 03 had the GRAS coolant in it according to the tag on the recovery bottle. The model number of the aqua hot in our coach could have had regular engine coolant in it as it had the coils on the outside of the tank.
previous 1984 35 ft ORED 250 HP 3208 Cat       
previous 1998 40 ft U295 CAI 325 hp Cummins
previous 2003 40 Ft u320 build #6140 450 Cummins M11.                                                         
1999 Mazda Miata
Ron, Nancy, Tipper the cat, Max The dog
1997 U 270 36 ft build number 5174 8.3 Cummins

Re: Color of Aqua hot boiler fluid(s)

Reply #13 –
Quote from: Travelin' Man –
I wasn't assuming................I've drained it out and replaced it.

T-man, I didn't mean it to sound like I was responding to you directly, just making a general statement in response to the OP's "what coolant do I have?" for future reference that you can't assume based on model year, especially if it's a 2003.  You need to know

a)  What the AH model and serial number are

b)  What was actually put in the unit at the last fluid change (don't take it for granted that the correct fluid was used, either)

Aside from chemical analysis, I don't think there's any way to tell from color what fluid is in there. 
Learn every day, but especially from the experiences of others. It's cheaper!  - John C. Bogle

2000 U320 36' non-slide / WildEBeest Rescue
2003 U320

Re: Color of Aqua hot boiler fluid(s)

Reply #14 –
Quote from: craneman –
The issue is not coolant compatibility. The fact that the later style A.H. has the fresh water inside the tank instead of on the outside  it is possible to get coolant in the water supply and Ethylene Glycol is poisonous. 

Just to clarify................according to the serial number ethylene glycol is what mine calls for.
 

Re: Color of Aqua hot boiler fluid(s)

Reply #15 –
AHH HAA!!!
After a bit of sleuthing.... The Orange fluid in the boiler is a GM (OAT) coolant from NAPA.....
part # RTU1DEX-P5783
 Now to attack the filler neck issue
'02 40' U320t  4010WTFS Build 6036 1 slide
Motorcade # 17841
SKP 151920
Retired truck driver
 5 million miler
Still have itchy feet for travel