Move out-of-unit water heaters (i.e., Water Heater In Unit=No from Location=None to Location=Conditioned Mechanical Room (corresponds to OS-HPXML location: "other heated space").
Note:
Ideally out-of-unit WHs are modeled as shared centralized WHs, which have different pipe and tank losses than in-unit WH and would not have interactions with in-unit equipments such as HVAC. Central WH is not currently being modeled in ResStock, though that's changing soon with this PR and this PR.
Water Heater Location.tsv is currently a tag that's not connected to any ResStockMeasures. This means out-of-unit WHs are currently modeled as in-unit WHs. The revised location should remove the HVAC-HPWH interaction. But the pipe loss is still underestimated with in-unit WH models.
Pull Request Description
Move out-of-unit water heaters (i.e.,
Water Heater In Unit=No
from Location=None to Location=Conditioned Mechanical Room (corresponds to OS-HPXML location: "other heated space").Note:
Ideally out-of-unit WHs are modeled as shared centralized WHs, which have different pipe and tank losses than in-unit WH and would not have interactions with in-unit equipments such as HVAC. Central WH is not currently being modeled in ResStock, though that's changing soon with this PR and this PR.
Water Heater Location.tsv
is currently a tag that's not connected to any ResStockMeasures. This means out-of-unit WHs are currently modeled as in-unit WHs. The revised location should remove the HVAC-HPWH interaction. But the pipe loss is still underestimated with in-unit WH models.resstock-estimation PR: https://github.com/NREL/resstock-estimation/pull/395
Checklist
Not all may apply:
openstudio tasks.rb update_measures
has been run