MrCool 4 Ton 13.4 SEER2 Gas/Electric Package Unit – 90000 BTU Gas Heat, 81% AFUE, Multi-Positional, R454B, VersaPro Series
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Key features
- 4-ton cooling capacity rated at 13.4 SEER2 efficiency
- 90,000 BTU gas heat at 81% AFUE, meeting federal minimum efficiency
- Single self-contained cabinet replaces separate indoor and outdoor units
- R-454B refrigerant, compliant with current EPA low-GWP requirements
- Multi-positional discharge for horizontal or downflow duct connections
- VersaPro series targets residential and light commercial ducted applications
About this system
The MrCool VersaPro 4-ton 13.4 SEER2 gas/electric package unit combines a gas furnace and electric cooling in a single rooftop or ground-level cabinet, making it a compact option for homes and light commercial spaces that run ductwork but lack room for separate indoor and outdoor equipment. The 90,000 BTU gas heat section operates at 81% AFUE, which meets the federal minimum for most non-Northern climate zones but sits at the low end of the efficiency range. The unit ships with R-454B refrigerant, the low-GWP replacement for R-410A that is now required under updated EPA regulations, so it is already positioned ahead of refrigerant transition rules.
At 13.4 SEER2, this is a code-minimum cooling system. It will handle a 4-ton load reliably in moderate climates, but homeowners in areas with long, brutal summers will notice meaningfully higher electricity bills compared to 15-plus SEER2 alternatives. The multi-positional cabinet allows horizontal or downflow discharge, which gives installers some flexibility with duct connections, though a licensed HVAC contractor is still required for the gas hookup and refrigerant circuits on a packaged unit like this. Unlike MrCool’s popular pre-charged ductless line, this is not a DIY-installable product.
This MrCool package unit offers a budget entry point into a ducted gas/electric all-in-one system with a future-ready refrigerant, but 81% AFUE and 13.4 SEER2 are both floor-level specs that cost more to operate over time. Buyers should factor in MrCool's thin service network and documentation-heavy warranty process before committing, especially on a packaged unit that requires a licensed contractor regardless.
Overall score is the average of the five ratings above.
What we like
- Single-cabinet design simplifies installation footprint and duct layout
- R-454B refrigerant is EPA-compliant and avoids near-term refrigerant cost spikes
- Lower upfront price compared to Carrier, Trane, or Lennox equivalents
- Multi-positional discharge adds jobsite flexibility for different duct configurations
- VersaPro series represents MrCool's most recent generation, with improved quality control over earlier lines
Trade-offs
- 81% AFUE is the minimum allowed in most markets and will cost noticeably more to heat than 90%+ AFUE alternatives
- 13.4 SEER2 is baseline efficiency; operating costs in hot climates will be higher than mid-tier options
- MrCool's warranty process is documentation-heavy and owners report the company actively seeking grounds to deny claims
- Few local HVAC technicians stock parts or have MrCool factory training, meaning repairs can fall back on the homeowner
What homeowners and pros say about MRCOOL
Among homeowners who have used MrCool’s ductless systems, the brand earns around 4.5 out of 5 stars on Home Depot reviews, with easy self-installation driving most of the praise on those DIY mini-split models. That goodwill does not transfer automatically to packaged ducted equipment, where MrCool’s thin contractor network and warranty friction become more visible. Owners of MrCool equipment more broadly report that warranty claims require extensive documentation and that the company has a reputation for finding technical grounds to reduce or deny coverage. Customer service complaints center on long hold times and troubleshooting conducted entirely by email, which can be frustrating when a heating or cooling system is down.
On the reliability side, MrCool’s 5th-generation products show a clear improvement over the 3rd and 4th generations, which saw failure rates approaching 25 percent within the first two years. Roughly 85 percent of 5th-gen units run reliably past year one, a meaningful step forward, though that still leaves a non-trivial early-failure rate compared to established packaged-unit brands. Documented failure modes in MrCool’s lineup include loose couplings near the air handler and components that require owner-level troubleshooting rather than a quick dealer dispatch. For a packaged gas/electric unit where a failure affects whole-home heating and cooling, and where a licensed tech is required for service anyway, buyers should honestly weigh whether the upfront savings justify the thinner support infrastructure compared to a Carrier, Trane, or Lennox package unit backed by a nationwide dealer network.
Sources: Better Business Bureau MRCOOL reviews, PickHVAC MRCOOL review, AHRI Directory of Certified Product Performance, U.S. DOE appliance and equipment efficiency standards.
What it costs to run
At 13.4 SEER2, cooling this 4-ton system for a typical 1200-hour cooling season at the U.S. average electricity rate of $0.17/kWh works out to roughly $731 per year in cooling, about $0 less per year than a minimum-efficiency 13.4 SEER2 unit of the same size. Your real cost depends on your climate and local rate.
Method: (48,000 BTU/hr ÷ 13.4 SEER2) × 1200 hours ÷ 1000 × $0.17/kWh. Rate source: U.S. EIA average; cooling hours: moderate-climate estimate.
How it compares
| Brand | Comparable model | SEER2 | Stage | Price position |
|---|---|---|---|---|
| MrCool | VersaPro 4-Ton Gas/Electric Package Unit | 13.4 | Single-stage | Value pick |
| Carrier | WeatherMaster 50XC Series | 14.0 | Single-stage | Moderately higher upfront cost |
| Trane | YCD Series Package Gas/Electric | 14.0 | Single-stage | Moderately higher upfront cost |
| Lennox | LRP14GE Series | 14.0 | Single-stage | Moderately to noticeably higher upfront cost |
Competitor rows are comparable single-stage units at similar efficiency; price is relative position, not a quote.
Questions about this system
Can I install this package unit myself the way I would a MrCool DIY ductless system?
No. Unlike MrCool's pre-charged mini-split line, this packaged gas/electric unit requires a licensed HVAC contractor to connect the gas supply, handle the refrigerant circuits, and satisfy local permit requirements. Self-installation would void any warranty and almost certainly violate local mechanical codes.
Is 81% AFUE acceptable for my area, or will I be required to buy something more efficient?
Federal rules allow 81% AFUE in most Southern and Western climate zones, but several Northern states and some local jurisdictions require a minimum of 90% AFUE for new installations. Check your local code before purchasing, because returning a packaged unit is costly and complicated.
How does R-454B affect maintenance and future refrigerant costs compared to R-410A?
R-454B is a mildly flammable (A2L classification) low-GWP refrigerant that EPA rules now require in new equipment. Certified technicians can still service it, but not every local shop has the updated recovery equipment yet, so confirm your installer is equipped before the job starts. Availability and pricing for R-454B are currently stable and are expected to remain so as the industry transitions.
What does MrCool's warranty actually cover on this unit, and what do I need to keep it valid?
MrCool typically offers a limited parts warranty on its packaged equipment, but the brand is documented for requiring detailed paperwork, proof of professional installation, and maintenance records before approving claims. Keep every invoice, register the product immediately after installation, and file records of any annual service visits, because gaps in documentation are a common basis for denial.
If something breaks, can my local HVAC company fix it, or am I stuck dealing with MrCool directly?
This is a genuine concern with MrCool. The brand does not have a broad authorized dealer and service network the way Carrier or Trane does, and many independent HVAC technicians decline MrCool warranty work or simply do not stock the parts. If a component fails outside of easy self-service range, you may face long customer service waits and email-based troubleshooting before a resolution is reached.
Specifications
| Cooling capacity | 4 Ton |
| Efficiency | 13.4 SEER2 |
| Furnace output | 90000 BTU |
| Furnace efficiency | 81% AFUE |
| Refrigerant | R-454B |