Feeling virtuous...several months ago a local hardware store was remerchandising--picked up a couple of 6' washing machine hoses. Had been noticing a slowing of hot water into the machine--I think the diptube in the HWH is going, having had to clean some aereators in the rest of the house. Anyway, finally got around to changing the hoses...went from 4' (undoubtedly what was packed in the machine when new) to the 6' and cleaned out the hot valve--ugh...a plug of sediment in the inlet. Now warm will be warm, even in this weather; plus a hot load won't take an eternity to fill.