For a half liter per boil? 2 cups?? Hmmm... I typically eat a big breakfast and supper. I boil a liter at each. And do a about 15 minutes worth of simmering, besides. Yes, I am solo mostly, sometimes the wife tags along and I need more.
Breakfast is generally 2 cups of coffee and two oatmeals. The first is in a cup (boils in about 1 minute) and then I put 3 cups on to boil as I drink it watching the sun rise. I am usually up at first light whatever time it is.
Paddling all day or hiking is just cold snacks, usually 5min/hour or so.
Supper is a cup of cocoa and one of soup, stew, fresh fish, rice sides, pot pie, or similar.
Presleep is often another cup of cocoa or similar, often heated over an open fire sometimes heated over a stove again.
I burn about 1oz of fuel per day in an old SVEA. Total weight for ten days is:
SVEA: Stove and cup, 19oz
Fuel: 12floz pepsi bottle (about 10oz fuel and bottle, full 12oz but I don't think I have ever used it all.)
3 cup pot, spoon, lid and windscreen: ~5oz
Right around 35-36oz for the total kit. Two weeks is about 4oz heavier in a slightly larger bottle (16oz.) Bottles only change about 1/4oz.
I tried canisters but require several of them at about 3/4oz per day (three 4oz canisters+pot&lid, cup, spoon and wind screen. The UL "toppers" for canisters waste a lot of heat to the outside. You need another canister. Alcohol is just as heavy at 2.5oz per day + cup, pot & lid, wind screen and spoon...and it is slower.
Kitchen kit: Pot, lid, cup, windscreen, spoon, total: ~5oz
With canister gas I get:
Windpro: 6.8oz, three 4oz canisters: 24oz (I should have 4 but on low it works with three.) + kitchen kit total: about 35.8oz
With Alcohol I get:
Caldera cone: 12/10 (ading in the difference for wind screens here) 2.5oz + fuel is 28oz + kitchen kit total: 35.5oz
SVEA is total: 36oz
So for boiling 2 liters a day and being ccomfotable with a warm drink just before bed, they all work out close to the same for 7-10 days. I don't worry about the ounce or two difference for a ten day hike. For longer, I always bring the svea. It pays in the long run in fuel. Not necessarlily weight, but volume and dollars. Smaller volume means a smaller pack, so I save overall weight by bringing a smaller, ligher pack (usually a Miniposa at 17oz-with hip pockets- for 7-14 day trips, a Murmur at 8.5oz for shorter trips.) It really doesn't matter which stove I bring. The SVEA is the most compact, taking up about as much space as two and a half cups. Again, this is not my UL kit for two nights out, but weighs close to the same and is always set up, ready to go. Canisters and a Jet Boil Sol for example are a lot larger. A Simerlight burns fuel at twice the rate. A Primus needs delicate handling, unlike the SVEA and needs an extra canister. The Caldera cone does not cook well. And so on...