The place where I bought it normally deals with Goodman, they only had that Day & Night unit because they bought some inventory of another business that went bankrupt. They do not sell any Carrier or ICP parts. I got a good price on it, but it did not come with a heat strip.Why not contact who you got the unit from? They would be able to order the Heat Strip unit. ICP/Arcoaire is just a badge on the unit. Those Package units are only made by a select number of companies that we see every day (ie Trane, Bryant, Lennox, etc.).