FWIW, what the "Arctic Package" is NOT on our 2020 Georgetown GT5 34H5 motorhome:
- Better windows
- Better insulation in the walls and ceiling and floor
- Full insulation for the wet bay, the basement compartment where the water filter and other water lines are located.
- Heated floors.

Seriously, those floors can get really cold and rugs or carpet runners help a lot, especially on the dinette floor.
What the "Arctic Package" IS (HINT: a marketing term):
- Thermostatically-controlled tank heating pads on the bottom of the tanks. When "Tank Heater" is turned on, those pads get power. They begin to warm when the temp as sensed by the pad drops to about 45 degrees F and they turn off when the temp raises into the mid-60's F.
- Non-thermostatically controlled heating "sleeves" on the gray tank dump and the black tank dump piping at the dump valves. They help keep the fluid sitting at the dump valves from freezing. Ours are about 7 watts and also turned on by "Tank Heater".
- Foil insulation inside some water-containing basement compartments, such as the one where the fresh tank and water pump are located.
- Plastic panels immediately behind the compartment doors that contain water, with marine plates that can be unscrewed to reach into those compartments. The compartment with the water pump and fresh tank have this as does the compartment where the water heater winterization valves are located.
- Heat from the propane furnace supposedly is somehow dumped into the water-containing basement compartments according to the FR salesperson but I don't think ours has this. Note that this part requires that you use the propane furnace. Heat from the fireplace or space heaters cannot get into the water-containing basement compartments.
We've stayed in ours in the low 20's F and been very cozy with no drafts. But the bed pillows against the outside wall can get cold. So can the walls on either side of the bed.
We do have the optional dual pane windows, though. The only condensation we've ever had is on the inside of the windshield.
We also put a small, 250-watt electric heater in the wet bay, powered by a Thermo Cube. The Thermo Cube turns that heater on when the temperature in the wet bay drops to 35 degrees F and turns the heater off when the temperature rises to 45 degrees F.
Our heaters are Therma Heat. Manual attached. I can see the manufacturer's name on the dump valve "sleeve" heaters.
Ray