I'm really feeling the cold this year. In an effort to stave off ever increasing heating bills, I didn't fill my hot tub this winter. I never used the hot tub all that much anyways. The bad thing is, that the heater, filter, and valving is in a small room in the corner of my engineering office. The heat loss from that room always kept my office nice and toasty. This year, I have to run a frigging micro furnace to keep my office warm enough to be comfortable.---Ya can't win!!!