Pains me to say it... but stuey is absolutely correct. Look... the acidic content of tomatoes makes them nearly foolproof to can in glass jars (which is standard here in the U.S.) All that's needed is to boil them for about 1 minute or so, plunge them into ice water to stop the cooking at which time the skins just fal off. They are then packed into whatever size jars you like (we usually use quarts) with about a teaspoon full of canning or Kosher salt (just for taste) covered with hot water, and then boiled for about 10 minutes or so (after screwing on the lids, of course), removed and left to "Ping"... the sound of the jar lids sealing. They're good for at least a year... even longer if kept is acool place such as a root cellar.
Other vegetables (we're in the processofharvesg beets and yellow beans) require pressure cooking for about 30 minutes in which case one has to have an appropriate size canning type pressure cooker... ours is 22 quart, but they aren't all that expensive... here in the U.S., the 22 quart size is about $40 or so and lasts forever...