antifreeze and how much?

[yotachad]

OK after extensive thinking Iam still going to try my idea
="http://www.garagejournal.com/forum/showthread.php?t=22535&highlight=yotachad" ,but in the mean time I am looking into getting a electric hot water tank its going to be a close loop! I have 250 ft of 1/2 inch barrier pex. My Q's are as follows I need to find out how much antifreeze I need? How do I size up the hot water tank? Reason for antifreeze is so if my power goes out (it happens alot here) then they wont freeze .

 

[Torque1st]

Get the RV type propylene glycol antifreeze to avoid toxic antifreeze contaminating your water lines. You will also need an expansion tank, check valve, and a pressure regulator just like any hot water heating system.

The product linked below is used full strength:
http://www.peakantifreeze.com/rvmarine.htm

Concentrate is also available:
http://www.starbrite.com/productdet...t=Anti Freeeze & Winterizing RV&ProductSSCat=
The site links to freeze point charts.


Measure the inside diameter of your pipe. Half of the diameter is the radius. Use that to figure the area just like you learned in school:

Area = 3.1416 x Radius x Radius

Volume = Area x Length.

Length = 250' or 3000 inches.

1 gallon = 231 cubic inches.

Divide your Volume figure by 231 to get the gallons.

Add that volume to the volume of your heater plus some for your other pipe and a little for the expansion tank.

 

[83trekker]

Get the RV type propylene glycol antifreeze to avoid toxic antifreeze contaminating your water lines. You will also need an expansion tank, check valve, and a pressure regulator just like any hot water heating system.

The product linked below is used full strength:
http://www.peakantifreeze.com/rvmarine.htm

Concentrate is also available:
http://www.starbrite.com/productdet...t=Anti Freeeze & Winterizing RV&ProductSSCat=
The site links to freeze point charts.


Measure the inside diameter of your pipe. Half of the diameter is the radius. Use that to figure the area just like you learned in school:

Area = 3.1416 x Radius x Radius

Volume = Area x Length.

Length = 250' or 3000 inches.

1 gallon = 231 cubic inches.

Divide your Volume figure by 231 to get the gallons.

Add that volume to the volume of your heater plus some for your other pipe and a little for the expansion tank.

So what is the difference bewteen that and the Glyco that costs a fortune from the plumbing shop thats is meant to go in your closed loop set up?

 

[Torque1st]

I have no idea what they are selling at the plumbing shop. There are many glycols out there.

What I said to use is propylene glycol and is fairly non-toxic. The ethylene glycol that is used in automotive systems is very toxic.

 

[mikester]

I just put in a new Biasi boiler and I wanted the guy to put in antifreeze in the system for the same reason. Winter power failures. The plumber that did the install told me that it causes leaks in the valves in the system and he wouldnt use it. I didnt really believe that so I called the guy that installed the air handler for my forced air heat/AC combo on my second floor and he told me the same thing. Is there a special type that doesnt do that ?

 

[Torque1st]

I would be a mite skeptical myself.

It may be that the discoloration and residue makes any leak more visible.

 

[83trekker]

Theres got to be a differnce in the glycol, its like 500-700 bucks for 40-45 gallons, if it was the same everybody would goto the local store and buy rv antifreeze for 3 bucks a gallon.

Theres gotta be some peole out here that know more?

 

[Torque1st]

What KIND of glycol is the plumber selling?

Propylene glycol is Propylene glycol, is used as a non-toxic antifreeze.

Ethylene glycol is Ethylene glycol, and is a toxic antifreeze.

Diethylene glycol is Diethylene glycol, and is a toxic antifreeze.

Butylene glycol is Butylene glycol, and is used as a food additive, why I don't know.

The same product from two different sources can be 100's of times more expensive.

Use whatever the hell you want, pay out the wazoo, makes no difference to me.

 

[rsanter]

how about using vodlka
that wont freeze

bob

 

[83trekker]

What KIND of glycol is the plumber selling?

Propylene glycol is Propylene glycol, is used as a non-toxic antifreeze.

Ethylene glycol is Ethylene glycol, and is a toxic antifreeze.

Diethylene glycol is Diethylene glycol, and is a toxic antifreeze.

Butylene glycol is Butylene glycol, and is used as a food additive, why I don't know.

The same product from two different sources can be 100's of times more expensive.

Use whatever the hell you want, pay out the wazoo, makes no difference to me.

wow dont get your ******* in a Knot there, im just asking questions, I know what you are saying Propylene glycol could be the same as sold for in floor heat, but what you have linked is for freezing, as the stuff you buy for in floor heat which is also Propylene glycol does act as a heat transfer for the purpose of the radiant heating. Just trying to find more out about everything. Im not saying to buy eaither but theres lots of people on here that run raidant heating and see what they say.

 

[Torque1st]

The point I am trying to make is that one just can't say Glycol since there are many. The above list is just a few. A person must specify which one!

 

[Ezzie]

Propylene glycol is used for in-floor radiant heating - for two main purposes. It is an excellent heat transfer medium and prevents freezing should the system fail. It comes in a concentrated form and needs to be mixed with water to a 50/50 mix before adding to your system.

 

[Torque1st]

Propylene glycol is used for in-floor radiant heating - for two main purposes. It is an excellent heat transfer medium and prevents freezing should the system fail. It comes in a concentrated form and needs to be mixed with water to a 50/50 mix before adding to your system.

Propylene glycol is common RV antifreeze sold in stores. Most of the stuff in stores is premixed. Check the label.