Not a gret idea. P; q, y6 f ?7 b0 b/ O2 _8 Y' S/ _) g6 D7 q" w
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., ^* o; t" Y+ A# a2 s2 R2 {
, F0 K6 |; S a& YBeside,furnace hot water coil is made of metal. Some of it will come into the hot water.