Not a gret idea. 9 | T8 b3 ~/ o9 d' i8 `2 a4 S1 ~! c q
Hot water has went through all your home's internal pipes whereas cold water comes "direct" from your local reservoir. Which should be pretty safe. 1 F' P/ s" B" C+ f( Q 4 i5 L" N2 Y3 l1 h' i4 X' DBeside,furnace hot water coil is made of metal. Some of it will come into the hot water.