Thor Sanctuary 19L vs Thor Sequence 20A

Thor · Class B

Thor Sanctuary 19L

$98,000

3.9★ (1,200)

Thor · Class B

$105,000

4★ (1,400)

Quick take: The Thor Sanctuary 19L costs $7,000 less; the Thor Sanctuary 19L is 2 ft shorter and easier to maneuver.

✓A 460Ah lithium battery package gives the 19L real off-grid endurance for a budget-positioned coach, letting owners run the fridge and electronics for days without shore power
✓Priced well below the Sprinter-based premium crowd, owners specifically cite the Sanctuary costing far less than a comparably sized Winnebago Revel as the reason they bought
✓Swivel captain's chairs and a smart electronics station make the small footprint feel livable as a daily driver and a basecamp
✓Thor's huge dealer and service network means warranty work and parts are easier to find than with boutique builders like LTV or a defunct Roadtrek
✓The wet bath with fold-down sink lets two people travel fully self-contained in a sub-20-foot rig - rare and a big draw for couples who want to skip campground bathhouses

✗The bed is the most common gripe - reviewers flatly warn 'you won't like the bed in the 19L,' and owners note the rear sleeping area is short and firm
✗Thor's marketing has muddied the chassis story - the Sanctuary line is actually built on the Mercedes Sprinter diesel, so shoppers expecting a cheap-to-service Ram ProMaster gas van should confirm exactly what they're buying
✗Being a Sprinter underneath means Mercedes diesel service intervals, DEF, and dealer dependence - the cost-of-ownership reality clashes with the budget price tag
✗Cabinet latches, trim, and small hardware are where Thor saves money, and owners report needing to chase down loose or failed pieces in the first season
✗Tight interior means two people living aboard full-time will feel the squeeze - it's a weekender and trip van more than a long-haul home
✗Resale lags the boutique brands - a used Sanctuary won't hold value the way an LTV or even a Winnebago does, reflecting the budget positioning

✓At around $105K it's tens of thousands cheaper than a comparable Mercedes Sprinter Class B like the Thor Delano
✓Gas engine means cheaper, more widely available service than a Mercedes diesel
✓Wet bath, galley, and convertible sleeping in a footprint you can take almost anywhere
✓Active owner communities on classbforum.com and thorforums.com share fixes for nearly every quirk
✓Easy aftermarket suspension upgrades (SUMO springs front and rear) dramatically improve the ride for about $500

✗Thor's quality control draws consistent criticism — owners describe plumbing leaks and electrical gremlins as known issues
✗One owner traced a generator that kept self-starting to control wires that had rubbed through against the axle
✗ProMaster is front-wheel-drive only, so it's not a true off-pavement rig like an AWD Sprinter
✗The ProMaster's tall, boxy body catches crosswinds, and owners recommend suspension upgrades for stable highway driving
✗Small fresh and gray tanks limit boondocking duration for two people
✗Wet bath means the toilet, sink, and shower share one space and everything gets wet