RV anti freeze

[John34]

Does anyone know if RV antifreeze at camping world is OK to use in Precision Temp's hot water heater and furnace.This is what I have in my 2009 Ventana and it calls for propylene glycol.

[John34]

Does anyone know if RV antifreeze at camping world is OK to use in Precision Temp's hot water heater and furnace.This is what I have in my 2009 Ventana and it calls for propylene glycol.

[siggyd]

RV antifreeze is NOT the same as propylene glycol.
I think Rv antifreeze is alcohol based and non toxic,but I would not drink it.
I don't know if Propylene glycol is toxic, but the common antifreeze ( ethylene glycol )is very toxic.

["007"]

Welcome John34 to the Newmar forum and irv2.
Siggy has it correct John the Propylene LINK can stand the heat range of furnace and radiator if used the Rv antifreeze would boil off.
Enjoy the forums and do post often.

[RustyJC]

Propylene glycol is considered non-toxic (it's used as a food additive) and is also used as a non-toxic anti-freeze in place of ethylene glycol, which is highly toxic. See HERE.

Rusty

[John34]

Well,I called Precision Temp today and they said I need boiler anti freeze ,as it needs to protect low and hi temp both. So, I need to find out what the Aqua Hot guys are using and from where.
John

[TXiceman]

The RV antifreeze sold at CW and Wally World is not what you want to use in your heating system. If it callsofor Propylene glycol, that is what you want to get. As noted, the ethylene glycol is what is typically used in auto radiator and is highly toxic.

Ken

["007"]

Give this LINK a try.

[troth]

Perhaps that pink is not the same as this pink...

Propylene Glycol should be on the label. This will work fine. (Note PG is normally clear, but dyed pink for consumer use/identification).

Peak RV antifreeze

[John34]

I called Newmar and they said to use Propylene Glycol for boiler use (hydronic heating). So, I got a gallon from a local RV daler as CW doesnt carry it. It is made by Camco and is pink and says Boiler Anti Freeze on the label.
Thank you all for your input.
John

[RVDude]

Here's my notes on this topic....

Many True Value Hardware stores carry the Camco boiler coolant. True Value's stock number is #874845.

Product Name: AMSOIL Propylene Glycol Antifreeze & Engine Coolant
Product Manufacturer: AMSOIL INC
Product Code: ANF
Orders Only Phone Number: 1-800-777-7094
To Locate Nearest Dealer: Visit www.amsoil.com/dealerinfo2.htm or Call 1-800-777-8491

also this camco product
Product Name: Boiler Antifreeze -100° Antifreeze for Hydronic Heating and Cooling Systems
Product Manufacturer: CAMCO Manufacturing Inc.
Corporate Address: 121 Landmark Drive
Greensboro, NC 27409
Corporate Phone: 1-800-334-2004
Web Address: www.camco.net
http://www.shoprvparts.com/cat....do?no=1177&mfrno=48
Also some CampingWorlds

[BryanL]

Now this is getting confusing.

Good stuff on the propylene (RV) versus ethylene (automotive) glycol.

Interesting to see boiler and hydronic variants for propylene glycol. The question is about the differences.

My guess is that is has a lot to do with dilution and additives.

heerchem indicates that it might be rust inhibitors and other additives although the flow and freeze points are lower than that you usually find on a bottle of RV antifreeze. Fuel Oil News seems to support this idea in their discussion of "inhibitors" and pH.

As noted, that pink color is an additive and seems to be standard for potable RV oriented antifreeze. I have also found scented and flavored antifreeze (getting that wintergreen scent out of my B-Van took a while!)

I note that pre-dilluted automotive antifreeze is a rather recent item in auto stores but that may be just an age perspective.

I get tempted to buy in bulk and do my own diluting but it appears that chem grade propylene glycol 99% runs $30/gal in 5 gallon quantity and I don't need a tank car quantity that seems easiest to get for non research purposes.