Not a gret idea. ) v2 \& { n- L9 R# {/ t0 i V6 h% V0 w" C: p( |. I
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.! o3 X7 f5 \: o
* F: O; V0 T' d% H4 D, lBeside,furnace hot water coil is made of metal. Some of it will come into the hot water.