Originally Posted by dmax_83
...I have looked into adding a heat strip but have always come to a dead end since my a/c is ducted. If anyone has installed or does install one in a ducted system can you post a quick tutorial? I am mechanically inclined, just need a little reassurance.
Sadly, you can't install a heat strip in a ducted A/C.
An option, albiet rather expensive ($1500 installed, give or take), would be to install a Cheap Heat
system. This is basically a heating coil that installs between the furnace and the duct plenum. They now also have a standalone system with it's own fan that connects directly into your furnace ductwork if there isn't room at the furnace. The only thing you see is a switch that switches between gas and electric. Everything else is controlled by the existing thermostat. Depending on the size of your service (30A or 50A) and how cold it gets where you park, you could easily use it instead of the furnace at all times.
Another option, also expensive, is to replace the A/C with heat pumps. Since it is so expensive, I would suggest waiting until the A/C fails before going this route unless the A/C is new enough you might be able to recoup enough of the expense of the change out to make it practical (I would sell the A/C while still on the roof first, then get the heat pump). Heat pumps are more efficient than resistance heating down to around 30-45 degrees (depending on brand and who you are asking); Coleman heat pumps, same brand as the A/Cs used by Jayco, seem to perform best. Heat pumps will perform much better than heat strips.