Ill post up as its a follow up to my thread
we have natural (grid) gas here at the house.
My forced hot air gas furnace drew about 1200w on startup (i think its a 1/2hp blower motor) but its a high efficiency furnace meaning it has a small secondary exhaust blower also. and about 500w running.
If the electronics go out (like mine did) the burner will not fire. But you can turn the blower on "manually" through the thermostat or if the real SHTF the blower is several heavy thick wires that connect to the electronic board (if you have a new furnace) you pick "2" and run it. Mine has several leads because its a multi speed blower (again has to do with the high efficiency furnace)
My hot water heater is gas. Takes no electricity to make hot water. We had hot showers both days. (after we came in from running the chain saw for hrs outside)
We are on grid water, so no well pump to power.
When the furnace and fridge were unpluged i did try to run my 1800w toaster (i think the computers and some lights were on at the time for about 250w load) and my little genny tried but after it grunted for 5 or so sec and didnt "catch up" i decided id toast my toast on the stove.
my desktop computer, 2 monitors, the cable modem, wifi switch, and 2 CLF lights was ~250w load.
My fridge was 1250w startup 600w running.
I have a gas dryer, we didnt run it. We did no laundry when the power was out. I did not run the dishwasher (with its huge arse heating element) while the power was out. I could check both the washer and dryer this weekend with my Kill-a-watt and report back. (and then *I* would know also)