Heat Pump

The XL15i single-stage heat pump comes with many noticeable benefits, like tough construction and energy-efficient operation. But one thing you won’t notice is when it’s running, because the XL15i series offers the quietest of all our single-stage electric heat pump systems.

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SEER (Cooling Efficiency): up to 16.25
HSPF (Heating Efficiency): up to 9.7

Quiet, Reliable Comfort

Efficient and economical performance

The XL15i’s 16 SEER rating and 9.00 HSPF make it an energy-efficient choice for home comfort, and increased efficiency may substantially lower your home cooling costs.

Quiet comfort

The XL15i single-stage electric heat pump operates at the lowest sound level of all our single-stage heat pump systems.

Durable construction

Materials for all components are tested again and again for long-lasting performance and reliability.

Cleaner, healthier indoor air

Add Trane CleanEffects™ to your system for advanced air filtration that removes more dust, pollen and other irritants from conditioned air for a cleaner, healthier, more comfortable home.

Quick Comparison


80 Cost
90 Efficiency


70.0 Cost
81.25 Efficiency


70.0 Cost
85 Efficiency

Every Trane Heat Pump is packed with high-quality components. Each helps ensure that time after time, your unit will provide total comfort your family can rely on. The XL15i includes:

Climatuff® compressor

Full-side louvered panels protect your investment

WeatherGuard II™ top shields unit from debris and damage

Baked-on powder paint resists rust

Spine Fin™ outdoor coil

Unique DuraTuff™ non-corrosive basepan

Lowest sound level of all Trane single-stage heat pump systems

Advanced fan system

Sound insulator on compressor (on select models)

XL15i heat pump models (R-410A refrigerant)

Model Cooling Capacity (BTUH) Nominal Tons Height (in.) Width (in.) Depth (in.)
4TWX5018B 18,000 1.5 37 33 30
4TWX5024B 24,000 2.0 42 33 30
4TWX5030B 30,000 2.5 42 37 34
4TWX5036B 36,000 3.0 42 37 34
4TWX5042A 42,000 3.5 50 37 34
4TWX5049E 48,000 4.0 54 37 34
4TWX5061E 60,000 5.0 54 37 34

Trane XL15i Registered Limited Warranty Details

12 year limited warranty on compressor.

10 year limited warranty on outdoor coil.

10 year limited warranty on internal functional parts.

If the product is not registered within 60 days of installation, Trane’s Base Limited Warranty terms will apply.

An option to purchase transferability of your Registered Limited Home System Warranty is available.

Optional Extended Warranties are available. Extended Warranties can pay for labor and other costs not covered by manufacturer's limited warranty.

Ask your dealer for full warranty information at time of purchase. Warranties are for residential use only, some exclusions may apply.

Register within 60 days of installation to activate warranty. Residential use only. Some exclusions may apply. Call 1-800-554-6413 or Register Online.