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Hi,

I'm doing some work with the archetype models created with the Create_DOE_prototype_model measure.

I noticed the parasitic energy use rate for water heaters seemed really high and inconsistent (much higher in ASHRAE 169-2013 vs pre-1980).

For example

• large hotel: Pre-1980:2301W vs. 90.1:15908 W
• Medium Office: Pre-1980: 19.99W vs. 90.1: 1886W

Is this a unit conversion error? In some cases the parasitic load is >50% of the water heater load over the year. The difference in energy use is pretty significant.

Thanks, Cameron

Hi,

I'm doing some work with the archetype models created with the Create_DOE_prototype_model measure.

I noticed the parasitic energy use rate for water heaters seemed really high and inconsistent (much higher in ASHRAE 169-2013 vs pre-1980).

For example

• large hotel: Pre-1980:2301W Pre-1980: 2,301W vs. 90.1:15908 90.1:15,908 W
• Medium Office: Pre-1980: 19.99W 19.9W vs. 90.1: 1886W1,886W

Is this a unit conversion error? In some cases the parasitic load is >50% of the water heater load over the year. The difference in energy use is pretty significant.

Thanks, Cameron

Hi,

I'm doing some work with the archetype models created with the Create_DOE_prototype_model measure.

I noticed the parasitic energy use rate for water heaters seemed really high and inconsistent (much higher in ASHRAE 169-2013 vs pre-1980).

For example

• large hotel: Pre-1980: 2,301W vs. 90.1:15,908 W
• Medium Office: Pre-1980: 19.9W vs. 90.1: 1,886W

Is this a unit conversion error? In some cases the parasitic load is >50% of the water heater load over the year. The difference in energy use is pretty significant.

Thanks, Cameron