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BeOpt: hot water - gas tank vs gas tankless

All other values being equal, i did a model with a gas tank @ 0.83UEF and a gas tankless at 0.92UEF. I expected the tankless to consume less gas, but the output showed slightly more gas used by the tankless. Is there another category I have to alter when i switch from modeling a tank to a tankless gas water heater?

Thanks

BeOpt: hot water - gas tank vs gas tankless

All other values being equal, i did a model with a gas tank @ 0.83UEF and a gas tankless at 0.92UEF. I expected the tankless to consume less gas, but the output showed slightly more gas used by the tankless. Is there another category I have to alter when i switch from modeling a tank to a tankless gas water heater?

Thanks

BeOpt: hot water - gas tank vs gas tankless

All other values being equal, i did a model with a gas tank @ 0.83UEF and a gas tankless at 0.92UEF. I expected the tankless to consume less gas, but the output showed slightly more gas used by the tankless. Is there another category I have to alter when i switch from modeling a tank to a tankless gas water heater?

Thanks