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Rinnai Recirculation Pump With Union Connections Wi-Fi Kit GTK03U

By Rinnai | Model: GTK03U | ID: 60741
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$619.00 + SHIPPING
Product Details

Rinnai Recirculation Pump With Union Connections Wi-Fi Kit GTK03U

The Rinnai GTK03U is a high-performance external circulation pump kit designed to enable Circ-Logic™ recirculation technology on compatible Rinnai tankless water heaters that do not include a built-in pump. Manufactured with a reliable Grundfos circulation pump, this kit allows homeowners to enjoy faster access to hot water by circulating water through a dedicated return line. By minimizing the time it takes for hot water to reach fixtures, the system helps reduce water waste while improving convenience. The kit supports multiple operation modes to balance comfort and energy efficiency, making it an excellent solution for residential hot water recirculation systems.

Key Features

  • External Recirculation Pump Kit – Enables Circ-Logic™ functionality for Rinnai tankless water heaters without a built-in pump
  • Faster Hot Water Delivery – Reduces wait time for hot water at fixtures and minimizes water waste
  • Comfort and Economy Modes – Allows users to choose between frequent cycling for maximum comfort or reduced cycling for energy savings
  • Circ-Logic™ Compatibility – Works with compatible Rinnai SENSEI™, VC, and KB series tankless water heaters
  • Durable Pump Construction – Grundfos pump features stainless steel housing designed for domestic hot water systems
  • Complete Installation Kit – Includes Grundfos 15-55 pump, internal check valve, 6 ft pre-wired BX conduit, and ¾ inch union fitting set

Compatible Units

  • Rinnai SENSEI™ Tankless Water Heaters
  • Rinnai VC Series Tankless Water Heaters
  • Rinnai KB Series Tankless Water Heaters
  • Other compatible Rinnai tankless water heaters requiring an external recirculation pump

View More Rinnai Parts

Specifications

Rinnai Recirculation Pump With Union Connections Wi-Fi Kit GTK03U

Brand Rinnai SKU GTK03U
Product Type External Recirculation Pump Kit Pump Type Grundfos 15-55 Circulation Pump
Compatibility Rinnai SENSEI, VC, KB Series Tankless Water Heaters Operation Modes Comfort Mode and Economy Mode
Material Stainless Steel Pump Housing UPC 5712605555360
Shipping

We ship freight to the 48 contiguous states, excluding Hawaii and Alaska. Some shipping restrictions may apply. Liftgate services may incur an additional fee, which can be added at checkout.

Order Processing: Orders are processed within 1-3 business days (excluding weekends). Orders placed on Fridays will be processed the next business day. Once shipped, you’ll receive an email confirmation with tracking details. Backordered products may have longer processing times, and we will notify you of any delays.

Arrival of Goods: Freight delivery times depend on the carrier's schedule and routing. Estimated delivery times are provided at checkout. The carrier will contact you to arrange delivery, and you must be present to sign for the shipment.

Damages: Upon delivery, inspect your shipment carefully for any damage or discrepancies. Note any issues on the carrier’s delivery receipt and notify us within 24 hours. Claims made after this timeframe may be denied. Photographic proof is required for processing claims. Report damages or discrepancies immediately at [email protected].

Returns: For returns unrelated to damage, contact us at [email protected] for authorization. Return shipping costs are the customer’s responsibility, and a 20% restocking fee applies. Items must be in original packaging and condition for a refund.

Delivery Receipt: Before signing the delivery receipt, inspect the shipment for any damage. Your signature confirms acceptance of the delivery unless issues are noted.

Policy Updates: Our shipping policy may change, and updates will be communicated via our website or other channels. For any questions, contact The HVAC Store at [email protected] or call (833) 658-3387.

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Product Details

Rinnai Recirculation Pump With Union Connections Wi-Fi Kit GTK03U

The Rinnai GTK03U is a high-performance external circulation pump kit designed to enable Circ-Logic™ recirculation technology on compatible Rinnai tankless water heaters that do not include a built-in pump. Manufactured with a reliable Grundfos circulation pump, this kit allows homeowners to enjoy faster access to hot water by circulating water through a dedicated return line. By minimizing the time it takes for hot water to reach fixtures, the system helps reduce water waste while improving convenience. The kit supports multiple operation modes to balance comfort and energy efficiency, making it an excellent solution for residential hot water recirculation systems.

Key Features

  • External Recirculation Pump Kit – Enables Circ-Logic™ functionality for Rinnai tankless water heaters without a built-in pump
  • Faster Hot Water Delivery – Reduces wait time for hot water at fixtures and minimizes water waste
  • Comfort and Economy Modes – Allows users to choose between frequent cycling for maximum comfort or reduced cycling for energy savings
  • Circ-Logic™ Compatibility – Works with compatible Rinnai SENSEI™, VC, and KB series tankless water heaters
  • Durable Pump Construction – Grundfos pump features stainless steel housing designed for domestic hot water systems
  • Complete Installation Kit – Includes Grundfos 15-55 pump, internal check valve, 6 ft pre-wired BX conduit, and ¾ inch union fitting set

Compatible Units

  • Rinnai SENSEI™ Tankless Water Heaters
  • Rinnai VC Series Tankless Water Heaters
  • Rinnai KB Series Tankless Water Heaters
  • Other compatible Rinnai tankless water heaters requiring an external recirculation pump

View More Rinnai Parts

Specifications

Rinnai Recirculation Pump With Union Connections Wi-Fi Kit GTK03U

Brand Rinnai SKU GTK03U
Product Type External Recirculation Pump Kit Pump Type Grundfos 15-55 Circulation Pump
Compatibility Rinnai SENSEI, VC, KB Series Tankless Water Heaters Operation Modes Comfort Mode and Economy Mode
Material Stainless Steel Pump Housing UPC 5712605555360
Shipping

We ship freight to the 48 contiguous states, excluding Hawaii and Alaska. Some shipping restrictions may apply. Liftgate services may incur an additional fee, which can be added at checkout.

Order Processing: Orders are processed within 1-3 business days (excluding weekends). Orders placed on Fridays will be processed the next business day. Once shipped, you’ll receive an email confirmation with tracking details. Backordered products may have longer processing times, and we will notify you of any delays.

Arrival of Goods: Freight delivery times depend on the carrier's schedule and routing. Estimated delivery times are provided at checkout. The carrier will contact you to arrange delivery, and you must be present to sign for the shipment.

Damages: Upon delivery, inspect your shipment carefully for any damage or discrepancies. Note any issues on the carrier’s delivery receipt and notify us within 24 hours. Claims made after this timeframe may be denied. Photographic proof is required for processing claims. Report damages or discrepancies immediately at [email protected].

Returns: For returns unrelated to damage, contact us at [email protected] for authorization. Return shipping costs are the customer’s responsibility, and a 20% restocking fee applies. Items must be in original packaging and condition for a refund.

Delivery Receipt: Before signing the delivery receipt, inspect the shipment for any damage. Your signature confirms acceptance of the delivery unless issues are noted.

Policy Updates: Our shipping policy may change, and updates will be communicated via our website or other channels. For any questions, contact The HVAC Store at [email protected] or call (833) 658-3387.

Reviews

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