I bought the IH1500 heater it was supposed to save up to 50% of your heat bill but it cost me 500 KW more. Tryed to talk to A Mr. Obrian at ph.# (765) 584-3922 he told me tough your are stuck with it we don, t have a return policy. Don't buy any iHeater unless you need a new coffe tably for $379.00 Howard read full review »