Hayward HeatPro 140K BTU Heat Pump (Heat Only)
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✓ Includes Manufacturer Warranty
✓ Installation Available Upon Request
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SKU: W3HP21405T | Hayward HeatPro MCHX Series | 140,000 BTU | In-Ground Pools
Hayward HeatPro 140K BTU Heat Pump: Efficient In-Ground Pool Heating with MCHX Technology
The Hayward W3HP21405T is a 140,000 BTU heat-only pool heat pump from the HeatPro MCHX series, built for in-ground pools in both new construction and retrofit applications. It uses a microchannel evaporator coil that reduces refrigerant volume, minimizes braze joints, and cuts overall unit weight compared to traditional coil designs - all of which contribute to longer service life and easier installation.
Low ambient operation down to 40°F means you can extend your swimming season into shoulder months without switching to gas heat. The single-speed compressor delivers consistent, reliable output without the complexity of variable-speed systems, and Hayward's Trivalent Chromium Process coating protects the unit against corrosion in coastal and harsh outdoor environments.
140,000 BTU Output
Suitable for large in-ground pools. Consistent heating capacity from a proven single-speed compressor design.
MCHX Coil Technology
Microchannel evaporator reduces refrigerant volume and braze joints, improving durability and efficiency.
Low Ambient Operation
Operates down to 40°F ambient air temperature, extending your pool season into cooler months.
Corrosion Resistance
Trivalent Chromium Process coating protects against salt air, humidity, and harsh outdoor conditions.
New Build and Retrofit Ready
Square cabinet layout fits standard equipment pads and works for both new installs and replacements.
Heat Only
Dedicated heating unit without cooling capability -- straightforward, reliable, no unnecessary complexity.
Hayward W3HP21405T Specifications
| Specification | Value |
|---|---|
| Brand | Hayward |
| Model / SKU | W3HP21405T |
| Series | HeatPro MCHX Series |
| Pool Type | In-Ground |
| Application | New Construction, Retrofit |
| Heating Capacity | 140,000 BTU/hr |
| Kilowatts | 41 kW |
| Cooling Capability | No |
| Low Ambient Operation | Yes, down to 40°F |
| Compressor Type | Single-Speed |
| Voltage | 220/240V |
| Phase | Single-Phase |
| Frequency | 60 Hz |
| Maximum Breaker Size | 50 Amps |
| Product Dimensions | 44" H x 30.5" W x 33.6" L |
| Product Weight | 230 lb |
| Shipping Weight | 278 lb |
| Rear Clearance Required | 12" |
| Side Clearance Required | 12" |
| Vertical Clearance Required | 72" |
| Active Defrost | No |
| Silent Mode | No |
| Boost Mode | No |
| Parts Warranty | 1 year |
| Labor Warranty | None |
Frequently Asked Questions: Hayward HeatPro 140K BTU W3HP21405T
Does this model include cooling?
No. The W3HP21405T is a heat-only unit. If you need the ability to cool your pool as well, Hayward offers heat and cool models in the HeatPro lineup.
What type of pool is this designed for?
Hayward lists this unit for in-ground pools. It is suitable for both new construction and retrofit installations on standard equipment pads.
Can it operate in cooler weather?
Yes. The unit supports low ambient operation down to 40°F, which allows extended use into shoulder seasons when a standard heat pump would shut down.
What electrical setup is required?
The W3HP21405T runs on 220/240V single-phase power at 60 Hz. Hayward lists a 50 amp maximum breaker size. Consult a licensed electrician to confirm your panel and wiring can support the load before installation.
What are the installation clearance requirements?
The unit requires 12 inches of rear clearance, 12 inches of side clearance, and 72 inches of vertical clearance. These ensure adequate airflow and service access.
Does free shipping really mean no extra freight charges?
Yes. The price listed is your total delivered price. We do not add freight, liftgate, or residential delivery fees at checkout. Many pool equipment retailers advertise a lower sticker price and then add several hundred dollars in freight charges when you go to pay. We don't do that.
Hayward HeatPro 140K BTU W3HP21405T Manual, Brochure, and Warranty
The W3HP21405T carries a 1-year parts warranty from Hayward.
HeatPro MCHX Series Brochure