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Hayward W3HP21104T Pool Heat Pump, 110,000 BTU

Hayward Heat Pump Pool Heaters Heat Only
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HeatPro W3HP21104T
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This product has been discontinued.

Hayward Swimming Pool Products and Heaters

Hayward W3HP21104T Pool Heat Pump - 110,000 BTU
Many pool owners choose the Hayward W3HP21104T pool heat pump for its advanced components and overall efficiency. With 110,000 BTUs, this unit is ideal for medium and large pools. Part of what makes this brand so popular is the durability and reliability of the hardware. With stainless steel parts, Ultra-Gold evaporator fin, and titanium heat exchanger, this unit is proven to be corrosion-resistant. The technology that separates this unit from others is its self-diagnostic codes that monitor the pool heat pump’s performance and its compatibility with Hayward, AquaSwitch, Compool, Intermatic, AquaLink, and Goldline control systems. The continuous temperature display is easy to use and your pool’s temperature can be adjusted by increments of one degree. The non-metal cabinet is durable, and set-up is convenient with easy-access electrical hook-ups.

Features & Benefits:
100% Titanium Heat Exchanger – Pressure tested, high energy & impervious to corrosion
Ultra Gold Evaporator Fins – Corrosion resistant which increases durability in harsh environments
Vinyl Coated Fan Guard – Protects against debris and the elements
Stainless Steel Hardware – Eradicates corrosion
Compact Size – Smaller footprint makes upgrades easier
Easy Plumbing Connections – 2” by 2-1/2” union fittings
Scroll Compressor – Quietest compressor manufactured
Quiet Performance – Profiled fan blade & acoustic cover
Dual Electronic Thermostat – Continuous pool temperature display, easy to change setpoints, setpoint lock out for tamper proof settings, self diagnostic codes and compatible with many industry control systems including Hayward, Goldline®, Intermatic, AquaSwitch, AquaLink and Compool.

Hayward Energy Solutions


Heater Type:
Heat Only


kW Input:
BTU Output, Standard Rating Conditions 80/80/80
110,000 BTU
COP, Standard Rating Conditions 80/80/80:
BTU Output 80/80/63
100,000-109,000 BTU
COP 80/80/63

Model Specifications

Pipe Size:
2" FIP
Heat Only
AHRI Certified
Refrigerant Type:
Display Controls:
Dual - Pool & Spa
Heat Exchanger:

Electrical Specs

Maximum Breaker Fuse Size:
60 Amps
Recommended Fuse Size :
60 amps
60 Hz
Phase Type
Single Phase
Minimum Circuit Ampacity / Max Breaker:

Pool Water Flow

Flow Rate: Min/Max:
30/75 GPM
Water Flow Min/Max GPM:
30/75 GPM

Physical Specs

Weight (lbs.):
245 lbs. (285 lbs. Ship Wt.)
Length x Width x Height (in.):
31.25" x 40"H
31.25 Dia x 40.0 H
Shipping Weight:

Two (2) years for parts and one (1) year for labor.

Florida Only: Two (2) years for parts and (2) years labor.

Compressor: Five (5) year limited warranty on the compressor with parts and labor warranted for the first two (2) years and parts only warranted in the three (3), four (4) and five (5).

The titanium tube component of the heat exchanger has a ten (10) year warranty.

Download Owner's Manual for details.

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