The Catalog · Heat Pumps
Heat Pumps That Heat & Cool.
From -22°F to 105°F.
A heat pump is the most efficient way to heat and cool a home — it moves heat rather than generating it, delivering 2-4x more energy than electric resistance heating and outperforming gas furnaces in mild climates. Modern Hyper Heat models work down to -22°F and qualify for the federal 25C tax credit (up to $2,000 back) plus state utility rebates. We carry ductless mini split heat pumps, central ducted heat pumps, and packaged heat pumps.
In Stock · Ships to All 50 States
In-Stock Heat Pumps — Tax Credit Eligible
MRCOOL® 9k DIY 5th Generation Bundle - includes Condenser, Air Handler, DIY® Quick Connect® Line Set, DIYPRO® Cable, and Remote - 115V
Ships nationwide·In stock
MRCOOL® 12k DIY 5th Generation Bundle - includes Condenser, Air Handler, DIY® Quick Connect® Line Set, DIYPRO® Cable, and Remote - 115v
Ships nationwide·In stock
MRCOOL® 18k DIY 5th Generation Bundle - includes Condenser, Air Handler, DIY® Quick Connect® Line Set, DIYPRO® Cable, and Remote - 230v
Ships nationwide·In stock
MRCOOL® DIY® Series 5th Gen OuttaSight® 18K BTU 230V One-Way Ceiling Cassette
Ships nationwide·In stock
MRCOOL® 24k DIY 5th Generation Bundle - includes Condenser, Air Handler, DIY® Quick Connect® Line Set, DIYPRO® Cable, and Remote - 230v
Ships nationwide·In stock
MRCOOL® 36k DIY 5th Generation Bundle - includes Condenser, Air Handler, DIY® Quick Connect® Line Set, DIYPRO® Cable, and Remote - 230v
Ships nationwide·In stock
MRCOOL® DIY® Series 5th Gen OuttaSight® 12K BTU 230V One-Way Ceiling Cassette
Ships nationwide·In stock
MRCOOL® DIY® Series 5th Gen OuttaSight® 9K BTU 230V One-Way Ceiling Cassette
Ships nationwide·In stock
MRCOOL® DIY® Series 5th Gen OuttaSight® 6K BTU 230V One-Way Ceiling Cassette
Ships nationwide·In stock
EasyPro 5th Generation 9k BTU 115V System
Ships nationwide·In stock
MrCool DIY Easy Pro 9k BTU Ductless Mini-Split Heat Pump System
Ships nationwide·In stock
Advantage 5th Gen 9k BTU 115V System
Ships nationwide·In stock
Buying Guide
How to choose the right heat pump
Heat pumps are sized in BTUs (cooling capacity) and rated by SEER2 (cooling efficiency) and HSPF2 (heating efficiency). Climate matters — a heat pump that excels in Florida is the wrong choice for Minnesota.
Step 1: Know your climate zone
In hot climates (south of the Mason-Dixon line) any modern heat pump performs well. In cold climates (winter design temp below 20°F), you want a Hyper Heat or cold-climate model. These deliver 100% rated capacity at 5°F and continue heating efficiently down to -22°F. Standard heat pumps lose capacity below freezing and may need backup heat.
Step 2: Decide ductless vs ducted
Ductless heat pumps (mini splits) install in any home — no ductwork required. They allow per-room temperature control and are 30-40% more efficient than ducted systems because they avoid duct losses. Ducted heat pumps replace a central air system in homes that already have ductwork. We carry both.
Step 3: Size for heating, not cooling
In cold climates, size your heat pump for the worst-case heating load (your design temp). In hot climates, size for cooling. A Manual J load calculation is the gold standard, but for most homes the rule of thumb is 20-25 BTU per sq ft for cooling, plus an extra 10-30% for cold climates.
Step 4: Maximize tax credits and rebates
The federal 25C tax credit gives up to $2,000 back on heat pumps that meet or exceed CEE Tier requirements (typically SEER2 ≥ 16, HSPF2 ≥ 8.1 for split systems). Many states stack additional rebates — Massachusetts (Mass Save), New York (NYSERDA), Maine, Vermont, and the Pacific Northwest all offer $500-$8,000 in heat pump incentives. Save your invoice and AHRI certificate for tax filing.
Step 5: Plan for backup heat (cold climates only)
Even Hyper Heat units lose some capacity below -10°F. In Zone 5+ climates, plan for either a small electric resistance backup (built into many systems), an existing gas/oil furnace as a hybrid setup, or a wood stove for the few coldest days. Most days the heat pump handles 100% of the load efficiently.
At a Glance
Heat pump vs gas furnace vs electric resistance heat
Operating cost and efficiency compared:
Swipe the table sideways to compare
| Heat Pump | Gas Furnace | Electric Resistance | |
|---|---|---|---|
| Efficiency (heating) | 200-400% (COP 2-4) | 90-98% AFUE | 100% (no gain) |
| Cooling included | Yes | No (need separate AC) | No |
| Fuel source | Electricity | Natural gas / propane | Electricity |
| Federal tax credit | Up to $2,000 (25C) | Up to $600 (high-eff only) | None |
| Carbon emissions | Zero direct (clean grid) | Direct CO2 from gas burn | Zero direct |
| Operating cost (mild climate) | Lowest | Moderate | Highest |
| Cold climate (-10°F+) | Hyper Heat works full capacity | Works fine | Works (expensive) |
| System lifespan | 12-20 years | 15-20 years | 20-30 years |
Frequently Asked
Common questions
How does a heat pump work?+
A heat pump uses refrigerant and a compressor to move heat from one place to another. In summer it pulls heat out of your home and dumps it outside (cooling). In winter it does the reverse — pulls heat from outside air (yes, even cold air contains heat energy) and delivers it inside. Because it MOVES heat instead of generating it, a heat pump produces 2-4 units of heat for every unit of electricity it uses.
Do heat pumps work in cold climates?+
Yes — modern Hyper Heat (cold climate) heat pumps operate at 100% rated capacity down to 5°F and continue heating effectively to -22°F. Older heat pumps struggled below freezing, but variable-speed inverter technology and improved refrigerants (R-454B in MrCool 5th Gen) have largely solved the cold-climate problem.
Are heat pumps cheaper to run than gas?+
In most US climates, yes. The math depends on your local electricity and gas prices and your climate. As a rule of thumb: in any climate where electricity is under $0.20/kWh and natural gas is over $1.50/therm, a heat pump is cheaper. In all-electric homes (no gas line), a heat pump is dramatically cheaper than electric baseboards or resistance furnaces.
How much does a heat pump cost?+
Ductless heat pumps (mini splits) range from $700 for a small DIY unit to $4,000+ for whole-house multi-zone. Central ducted heat pumps are $2,500-$8,000 for the equipment, plus $2,000-$5,000 for installation. After the federal 25C tax credit ($2,000) and any state rebates, total cost can drop $2,500-$10,000 depending on your state.
What is the federal 25C heat pump tax credit?+
The 25C Energy Efficient Home Improvement Credit (made permanent and expanded under the Inflation Reduction Act) gives a 30% tax credit on qualifying heat pumps and heat pump water heaters, capped at $2,000 per year. To qualify, the unit must meet CEE Tier minimum efficiency (typically SEER2 16+, HSPF2 8.1+ for split systems). Most MrCool systems we sell qualify. Save your AHRI certificate for tax filing.
How long do heat pumps last?+
A well-maintained heat pump lasts 12-20 years. The compressor (the most expensive component) typically goes 10-15 years; the indoor air handler longer. MrCool systems include a 7-year parts and compressor warranty when registered.