Residential gas appliances can draw up to 100 kBTU/h from the gas line. That's about 30 kW. Commercial gas lines are twice as wide, they supply 200 kBTU/h i.e.

Residential gas appliances can draw up to 100 kBTU/h from the gas line. That's about 30 kW. Commercial gas lines are twice as wide, they supply 200 kBTU/h i.e. 60 kW. It's true that 30 kW is more than 2800 W though.