Originally Posted by GaCamper
... If I add a second A/C unit that has aux heat, will that provide enough heat for the camper in normal conditions? ...
A clarification may help. Will this 2nd unit be a heat pump or a standard A/C with an integrated heat strip?
Our TT came equipped with a heat pump and I've found it adequate into the 30s, albeit noisy (same noise level as running the A/C). I don't know what the output of the integrated heat strip is, maybe some one else will chime in, but I suspect 1 or 2 small portable heaters would do the job. I carry a compact ceramic cube type heater if needed. It served us well in our previous TT. I've read in other threads where some have found the oil filled radiator type heaters to be very satisfactory.