[an error occurred while processing this directive]
Posted by HeatPro on December 17, 2005 at 20:48:47:
In Reply to: antifreeze addition? posted by Dave on December 17, 2005 at 17:54:04:
If you don't want to have your lines freeze, it is a good idea. You would empty the system after it cooled down, then pump the mixture into the system. It would be a good idea to fill the system with water and watch it operate without antifreeze for a while to establish there are no leaks before putting antifreeze in; why waste antifreeze from a system with leaks that would dilute the antifreeze in a season? Generally, you could lose the 15% of the heat transfer that antifreeze could produce without a problem.
Also, if you have a low-water cutoff installed or a flow switch, so the boiler can't fire without enough water, with the feed valve shut so you can't dilute the antifreeze nor force the antifreeze out with water pressure, only some of the mixture will leak out before it gets to zero pressure and can't come out any longer.
Post a Followup