Nordic
Nordic
Skip to main content
Follow Us
  • Resources
  • About Maritime Geothermal Ltd
  • Contact Us
Menu
  • Residential
    • Geothermal Heat Pumps
    • Air Source Heat Pumps
    • Indoor Pool Conditioner
    • Hydronic Air Handlers
    • Warranty Registration
    • Residential Warranty
    • Available Rebates
    • Economic Benefits & More
      • Comfort
      • Eco Friendly
      • New Construction
      • Renovation
      • System Selection
        • Energy Supply Source
        • Type of Heat Pump
        • Energy Distribution System
        • Green Home Integration
          • Passive Solar Gain
          • Solar Hot Water Panels
          • Photovoltaic Panels
          • Controls
      • Installation Process
      • Typical System Cost
      • Case Studies
      • FAQs
  • Commercial
    • Commercial W Series
    • Commercial WH Series
    • Commercial R Series
    • Indoor Pool Conditioner
    • Industrial Air Purifier
    • Warranty Registration
    • Commercial Warranty
    • Available Incentives
    • Economic Benefits & More
      • Comfort
      • Renewable Energy
      • LEED Certified
      • Typical Implementation
      • Case Studies
      • FAQs
  • Accessories
  • For Dealers
    • Become a Dealer
    • Dealer Support
    • Dealer Resources
    • Download Software
    • Manuals & Specifications
    • Information for your Customers
      • Economic Benefits
      • Eco Friendly
      • Quality
      • Warranty
    • Case Studies
    • Startup Record/Warranty Registration
  • Find a Nordic Dealer
  • Blog

WH Series

  • WH Series
  • WH Series 25-80
  • WH Series 25-80 (Doors Off)
  • WH Series 120/140/180/235
  • WH Series 150-800

Download Resources

  • WH Series Brochure (All Model Sizes)
  • WH Series Manual (Model Sizes 25-80)
  • Commercial W(R454b)/WH(R513a) Singles Manual (Model Sizes 100-235)
  • Commercial W(R454b)/WH(R513a) Duals Manual (Model Sizes 150-1000)

 

Our WH Series is a high-temperature water-to-water heat pump that can heat water up to 160°F (71°C) for either domestic water heating (DHW) or space heating use. The source loop can be a water well, ground loop, or waste heat loop but can not be any colder than 45°F (7°C).

Nordic High Temperature Water-to-Water Heat Pump

The WH Series is available in residential sizes from 2 to 6 nominal tons for hot water baseboard and radiator applications.

This series is also available in commercial sizes ranging from 9 to 65 nominal tons for high temperature water heating.

Quick Facts About the High-Temperature Water-to-Water Heat Pump (sizes 25-800)

The WH sizes 25 to 80 are used for space heating only and feature a coaxial single wall condenser and a rugged, high-efficiency coaxial evaporator.

Sizes 120/140/180/235 are a single compressor system and can be equipped with a double wall braze plate exchanger for DHW heating.

Sizes 150 to 800 are produced in same proven vertical chiller design as our W Series commercial geothermal heat pump and are only available in single wall plates for space heating.

Quick Facts
Distribution TypeHot Water for Baseboards or High-Temperature Heating Medium
CapabilitiesHydronic Heating
Loop TypeGround Loop or Open Well (Minimum 45°F (7°C) Source Temperature)
Residential Heating Size2 - 6 Nominal Tons
Commercial Heating Size9 - 65 Nominal Tons
COPh2.5 - 6.5
CertificationsTUV
Refrigerant (25-80)R134a (Canada Only) , R513A (US)
Refrigerant (120-800)R513A

 

WH Series Specifications
002529SPC-01 - WH-25 High Temp R134a 60Hz
002530SPC-01 - WH-45 High Temp R134a 60Hz
002531SPC-01 - WH-55 High Temp R134a 60Hz
002532SPC-01 - WH-65 High Temp R134a 60Hz
002533SPC-01 - WH-75 High Temp R134a 60Hz
002534SPC-01 - WH-80 High Temp R134a 60Hz
002785SPC-01 - WH-100-H/HAC/HACW/HW R513a 60Hz
002786SPC-01 - WH-120-H/HAC R513A 60Hz opt.DHW
002787SPC-01 - WH-140-H/HAC R513A 60Hz opt.DHW
002788SPC-01 - WH-180-H/HAC R513A 60Hz opt.DHW
002789SPC-01 - WH-235-H/HAC R513A 60Hz opt.DHW
002777SPC-01 - WH-150-H/HAC R513A 60Hz
002778SPC-01 - WH-185-H/HAC R513A 60Hz
002779SPC-01 - WH-240-H/HAC R513A 60Hz
002780SPC-01 - WH-300-H/HAC R513A 60Hz
002781SPC-01 - WH-400-H/HAC R513A 60Hz
002782SPC-01 - WH-500-H/HAC R513A 60Hz
002783SPC-01 - WH-600-H/HAC R513A 60Hz
002784SPC-01 - WH-800-H/HAC R513A 60Hz

For all specification documents including those for older refrigerants R410a/R134a, please visit our documents page:

Manuals & Specifications

  • Geothermal Heat Pumps
    • Water-to-Air
    • Liquid-to-Air and Water
    • Water-to-Water
    • High Temperature Heat Pumps
      • WH Series
      • WC Series
    • Heat Pump Water Heater
  • Air Source Heat Pumps
  • Indoor Pool Conditioner
  • Hydronic Air Handlers
  • Warranty Registration

Find a Maritime Geothermal Dealer

Search by location

Detect my location
Set Location Manually

We could not find that location.

Please select a location

Location could not be found.

Select Dealer by Category

Use our Dealer Finder to locate your nearest Nordic® product installer. You can search by geolocation or manually enter your location. You can also view the directory for a full listing of dealers near you.

  • Residential
  • Commercial
  • Accessories
  • For Dealers
  • Find a Nordic Dealer
  • Blog

Mailing Address

Maritime Geothermal Ltd. PO Box 2555 Petitcodiac, NB E4Z 6H4

Shipping Address

Maritime Geothermal Ltd. 170 Plantation Road Petitcodiac, NB E4Z 6H4

Contact Us

  • Toll Free: 1-800-986-6781
  • Phone: 1-506-756-8135
  • Fax:
  • Email: info@nordicghp.com

Connect

  • facebook
  • twitter
  • youtube
  • linkedin

More

  • Resources
  • About Maritime Geothermal Ltd
  • Contact Us
© 2025 Nordic Heat Pumps
  • Sitemap