Think how much pipe surface you would have to transfer heat, and the volume of the protected space
Sent from my iPhone On Jun 13, 2013, at 4:02 AM, Nicky Marshall <[email protected]> wrote: > > Is anybody aware of approved systems for freeze prevention of sprinkler > pipework that involves circulating water within pipework? > We are aware of dry systems, anti-freeze systems, heat tracing. > A dry system requires additional water due to area increase - a tank would be > needed. > Anti freeze has not got very good press lately and approved products are > expensive. > Heat tracing does not seem like a very energy efficient system. > There are circulating systems for domestic applications and internet searches > show several patents for such systems for sprinklers, but I cannot find > actual products. > > Thanks > Nicky Marshall > Protech Design > New Zealand > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
