Airstream Rangeline 21PS vs Coachmen Nova 20C

Airstream · Class B

The difference that matters

Same ProMaster 3500 chassis, same 9,350 lb GVWR, nearly the same 20.9 ft length: the difference sits in the electrical bay. The Rangeline 21PS includes a 3.5 kWh heated lithium bank and a 3,000 W inverter. The Nova 20C comes with three AGM batteries totalling 345 Ah and a 2,000 W inverter, with lithium as an upgrade.

Towing is the other gap. The Rangeline is rated for 3,500 lb, the Nova for 2,150, which matters if a small boat or utility trailer is part of the plan. Heat comes from a Timberline hydronic system in the Airstream and a Truma Combi in the Coachmen, and the Nova adds R-15 rockwool insulation and tanks mounted above the floor.

Tank sizes are close except black water, 19 gal on the Nova against 12. Each van offers a pop top that adds sleeping space for two more.

Airstream Rangeline 21PS: Van travelers who want lithium and a bigger inverter included and may tow a small trailer
Coachmen Nova 20C: Two people who camp near hookups, prefer a larger black tank and want to add lithium later on their terms.

Weights

2027 maker figures

GVWR: 9,350 lb
Dry weight (UVW): 7,661 lb
Occupant + cargo (OCCC): 1,689 lb
Towing capacity: 3,500 lb

1,689 lb between brochure dry weight and GVWR. Water (8.3 lb a gallon), food, gear, propane and dealer-added options all come out of it.

Weights

2027 maker figures

GVWR: 9,350 lb
Dry weight (UVW): not published
Occupant + cargo (OCCC): not published
Towing capacity: 2,150 lb

Spec for spec

	Airstream Rangeline 21PS	Coachmen Nova 20C
Dry weight (UVW)	7,661 lb	—
GVWR	9,350 lb	9,350 lb
Cargo capacity (CCC / OCCC)	1,689 lb	—
GVWR minus dry weight	1,689 lb	—
Towing capacity	3,500 lb	2,150 lb
Exterior length	20.9 ft	20.92 ft
Exterior height	9.4 ft	9.33 ft
Sleeps	2	2
Slide-outs	0	0
Fresh water	28 gal	27 gal
Gray water	19 gal	20 gal
Black water	12 gal	19 gal
Factory solar	200 W	220 W
House battery	3.5 kWh Deep Cycle Lithium Batteries with Built in Heater	3x Group 31 115Ah AGM (345Ah) standard; Lithionics 310Ah lithium optional
Chassis	Ram ProMaster® 3500	Ram ProMaster 3500
Engine	3.6 L Pentastar® V6 24 V VVT Engine	3.6L V6 (280 hp)
Fuel	Gas	Gas

Bold is the lighter or larger figure. A dash means the maker does not publish it.

To scale

051015202530354045 ft

Airstream Rangeline 21PS · 20.9 ft long · 9′5″ tall
Coachmen Nova 20C · 20.92 ft long · 9′4″ tall

Drawn to one scale from each camper's listed length and, where the maker publishes it, its exterior height. Outlines are typical for the camper type, not traced from this model. The figure is a 6 ft person. The dashed blue line is 25 ft, the length about 93% of national park campgrounds accept.

Airstream Rangeline 21PS

Full spec sheet, sources →

Coachmen Nova 20C

Full spec sheet, sources →