tag:blogger.com,1999:blog-3158555565127520038.post4852756496250585500..comments2023-12-13T05:28:34.250-05:00Comments on Ask the Renewable Energy Guru: How to keep water pipes from freezing and free air conditioning.Robhttp://www.blogger.com/profile/15014385973848101620noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-3158555565127520038.post-55618297689965757292013-12-04T20:42:44.212-05:002013-12-04T20:42:44.212-05:00Yes Ken, 400 feet of #14 solid copper, plastic ins...Yes Ken, 400 feet of #14 solid copper, plastic insulated wire has a resistance of 0.25250 ohms per 100 feet. So you would have 1.01 Ohms in your circuit. If the pipe is insulated even a little, I suspect you could cut the power back to around 50 Watts and keep it from freezing. So you'll need to find a 12V, 150 Watt (min) transformer. You could use a ceiling fan (inductive) control on the Robhttps://www.blogger.com/profile/15014385973848101620noreply@blogger.comtag:blogger.com,1999:blog-3158555565127520038.post-1596036861565023122013-11-16T18:57:05.829-05:002013-11-16T18:57:05.829-05:00Great way to keep a water pipe from freezing, I wa...Great way to keep a water pipe from freezing, I was wondering would a 14 ga copper wire looped back inside the 200' 1" pipe be big enough to heat the water in the pipe, and would any 1000 watt 12 volt transformer do the job, and can I use a dimmer on the transformer? pipe will be buried about 24" except where it comes out of the ground and into garage. I'm in Maine so it gets Anonymoushttps://www.blogger.com/profile/08030737692381266241noreply@blogger.com