Issues

• Add temperature/condition outputs (and warnings)?

  Feature

  NatLabRockies/OpenStudio-HPXML#2287 · Filter by author shorowit opened on Oct 22, 2026

• Improve reported operative temperatures

  enhancement
  NatLabRockies/OpenStudio-HPXML#2286 · Filter by author shorowit opened on Oct 22, 2026
  1

• Update documentation when we model induced infiltration

  documentation
  NatLabRockies/OpenStudio-HPXML#2284 · Filter by author shorowit opened on Oct 20, 2026

• Model non-constant duct leakage fraction?

  Feature

  NatLabRockies/OpenStudio-HPXML#2281 · Filter by author shorowit opened on Oct 13, 2026

• Model duct losses during system off time

  Feature

  NatLabRockies/OpenStudio-HPXML#2280 · Filter by author shorowit opened on Oct 13, 2026

• Improve duct conduction losses as a function of HVAC capacity

  Feature

  NatLabRockies/OpenStudio-HPXML#2279 · Filter by author shorowit opened on Oct 13, 2026
  2

• In line showers

  enhancementpriority low
  NatLabRockies/OpenStudio-HPXML#2276 · Filter by author jmaguire1 opened on Oct 6, 2026

• Building UA/TC and BLC outputs

  priority low
  Feature

  NatLabRockies/OpenStudio-HPXML#2275 · Filter by author shorowit opened on Sep 30, 2026

• Add optional bool argument for advanced HVAC timeseries outputs

  priority low
  NatLabRockies/OpenStudio-HPXML#2274 · Filter by author joseph-robertson opened on Sep 29, 2026
  

• Update soil density/specific heat for Kiva?

  priority medium
  NatLabRockies/OpenStudio-HPXML#2258 · Filter by author shorowit opened on Aug 15, 2026

• Support air-to-water heat pumps serving space conditioning and DHW (multifunction / combi heat pump)

  priority high
  NatLabRockies/OpenStudio-HPXML#2238 · Filter by author matt-tucker opened on Jul 13, 2026
  3

• Collapse like HVAC systems

  performance
  Feature

  NatLabRockies/OpenStudio-HPXML#2236 · Filter by author shorowit opened on Jul 10, 2026

• Add support for powered attic ventilation fans in HPXML/OpenStudio-HPXML

  priority low
  Feature

  NatLabRockies/OpenStudio-HPXML#2230 · Filter by author danielas-r96 opened on Jun 25, 2026
  1

• Possible HPWH warnings

  priority medium
  Bug

  NatLabRockies/OpenStudio-HPXML#2227 · Filter by author shorowit opened on Jun 4, 2026
  

• Update to SEDS 2025 data

  NatLabRockies/OpenStudio-HPXML#2218 · Filter by author shorowit opened on May 12, 2026 · 1.13.0
  2

• Unmet hours for dehumidification

  priority medium
  Feature

  NatLabRockies/OpenStudio-HPXML#2203 · Filter by author shorowit opened on Apr 30, 2026 · 1.13.0
  1

  

• Move the DHW parasitics to an EMS program

  priority low
  Feature

  NatLabRockies/OpenStudio-HPXML#2202 · Filter by author joseph-robertson opened on Apr 28, 2026

• Confusing indirect water heater outputs

  priority medium
  Bug

  NatLabRockies/OpenStudio-HPXML#2187 · Filter by author shorowit opened on Apr 2, 2026 · 1.13.0
  3

  

• Add new Load: Heating: Heat Pump Defrost Backup output?

  priority low
  NatLabRockies/OpenStudio-HPXML#2179 · Filter by author shorowit opened on Mar 23, 2026

• Misc areas to allow more flexibility

  priority low
  Task

  NatLabRockies/OpenStudio-HPXML#2170 · Filter by author shorowit opened on Mar 2, 2026

• Incorporate codes/programs in BuildResidentialHPXML measure

  priority medium
  Feature

  NatLabRockies/OpenStudio-HPXML#2168 · Filter by author shorowit opened on Feb 27, 2026
  2

• Allow specifying which loads are critical for backup power

  enhancementpriority low
  Feature

  NatLabRockies/OpenStudio-HPXML#2159 · Filter by author jmaguire1 opened on Feb 3, 2026

• Improved buried duct model

  priority medium
  Feature

  NatLabRockies/OpenStudio-HPXML#2142 · Filter by author shorowit opened on Jan 9, 2026

• Ground reflectance

  priority medium
  Feature

  NatLabRockies/OpenStudio-HPXML#2134 · Filter by author shorowit opened on Jan 6, 2026

• Support new "not present" choices in latest HPXML version

  priority low
  Feature

  NatLabRockies/OpenStudio-HPXML#2127 · Filter by author shorowit opened on Dec 23, 2025