Hi Delta SS Water Heaters, HD101-HD401

Hi Delta SS Water Heaters, HD101-HD401

The Raypak family of Hi Delta ss SS Water Heaters feature 85% efficiency, are sidewall venting capable, and provide 105ºF minimum inlet water temperature.


  • All models Indoor/Outdoor certified.
  • Efficiency:
    •85% AFUE HD101-HD301.
    •85% Water Heaters- standard.
  • Patented burner “security blanket” enhances staged combustion, minimizes installation/start-up issues, and protects burners from metal fatigue.
  • 105ºF minimum inlet water temperature.
  • Brass headers with copper finned tube heat exchanger.  Glass-lined, cast-iron headers and cupro-nickel tubes available as options.  AB 1953 compliant.
  • Sidewall venting capable. No extractor needed for most applications.
  • Ducted combustion air ready. TruSeal® CSA-Certified direct-vent available.
  • Certified under SCAQMD Rule 1146.2.  Meets all Low NOx regulations.
  • Available for natural gas or propane.
    • TruSeal® Direct Vent 
    • Sealed Combustion Chamber 
    • 100% Factory Fire Tested 
    • Efficiency: 85% 
    • Maximum Outlet Temperature: 200°F 
    • Minimum Non-condensing Inlet Temperature: 105°F 
    • Thermal Shock Proof Heat Exchanger 
    • Limited Twenty-year Thermal Shock Warranty 
    • Limited Five-year Heat Exchanger Warranty 
    • Status Display LED’s 
    • PolyTuf Powder Coated Cabinet 
    • No Combustible Floor Shield Required 
    • Fan-assisted – Ultra Low NOx (<20 ppm Nat.) 
    • Patented Burner Security Blanket
Technical specification
  • Unique ref.Hi-Delta-ss-Water-Heaters-HD101-HD401
  • Collection setBoilers & Water Heaters
  • CollectionDomestic Hot Water Heaters
  • TypeObject (single object)
  • Date of publishing2020-10-01
  • Edition number1
  • Designed inUnited States
  • Manufactured inUnited States
  • BIMobject CategoryHVAC - Water heaters
  • IFC classificationHeat Exchanger
  • UNSPSC nameDomestic water heaters
  • UNSPSC code40101825
  • Uniclass 2015 CodePr_60_60_96
  • Uniclass 2015 DescriptionWater heaters
  • CSI MasterFormat 2014 Code22 34 00
  • CSI MasterFormat 2014 TitleFuel-Fired Domestic Water Heaters
  • OmniClass TitleHot Water Heaters
  • OmniClass Number23-31 29 00
  • CSI UniFormat II CodeD3090
  • CSI UniFormat II TitleOther HVAC Systems & Equipment

Region availability

North America
United States