Not a gret idea. s1 r: q8 B. J, g3 M' _( H5 a" H! T, d. R i, v2 i* o2 V
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.6 p8 \" U7 o0 ?8 i) y t3 V$ w
) c7 J. B3 H# WBeside,furnace hot water coil is made of metal. Some of it will come into the hot water.