Central heat still down

We are still awaiting the arrival of the part for our CH unit. The manufacturer had to make it; we're hoping it gets here this week. In the meantime we have purchased a little propane infrared heater that keeps the chill off because the gas fireplace wasn't very efficient. Nightime is sort of like camping as we turn the little heater off. The house gets down into the 50s so it is a little cool when we get up in the morning.