Suggest the Duet HT. We really like ours. Has been excellent at cleaning and very reliable.

The largest advertised capacity is probably the LG line, but the usable capacity difference between that one and the other large-cap FL washers (like catlover's Duet) is negligible in practice; choose based on performance, reputation, service, etc., not relative size. - DR

Does the duet have internal heating?

dross -- what would you suggest is best in terms of performance, reputation, service, etc?

The Duet HT has the internal heater. (Duet HT 9400)

The Duet 9400 and Kenmore HE4t (nearly identical machines) both have heaters. The same machine is also sold as Maytag Elite and by Kitchenaid.

For performance and engineering quality I would recommend the Bosch Nexxt/Siemens Ultrasense line. For quality of service network (and stackability), as well as cycle flexibility, I would recommend the Whirlpool/Kenmore/Maytag/Kitchenaid machines. The LG machines are interesting and attractive, but are no longer competitively priced, and from posts here service sounds like a nightmare. - DR

Whirlpool Duet 9400 washer and matching 9250 dryer.

Kenmorewasher: Ditto.

I have had both for a little under two years. Huge capacity. They operate as represented and have had zero problems. (I run about 1/2 my loads with heat boost) I recommend them without hesitation.

I have the KitchenAid version of the Duet (called "Ensemble" - just saw them for sale at Costco over the weekend). They are huge. My previous W/D was the "Super Capacity" Kenmore set - purchased 8 years ago. I bought the largest Kenmores they had at the time. My KAs fit larger comforters, and more clothes than the Kenmore Super capacity set. The Bosch is a beautiful machine, and I considered it, but it didn't have the capacity I was looking for.

I'm also now a convert to FLs. I'll never go back top loaders. Hope this helps!