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| Square Footage | Furnace BTU |
|---|---|
| 1,000-1,200 sq. ft. Home | 40,000 - 60,000 BTU |
| 1,200-1,500 sq. ft. Home | 60,000 BTU |
| 1,500-1,800 sq. ft. Home | 60,000 - 80,000 BTU |
| 1,800-2,500 sq. ft. Home | 80,000 - 100,000 BTU |
| 2,500-3,500 sq. ft. Home | 100,000 to 120,000 BTU |
⚠️ Discontinued Model Notice:
The Carrier Performance™ Series Boost 90 – 59SP5A has been discontinued. However, limited inventory may still be available through select HVAC distributors and contractors.
If you’re researching the Carrier 59SP5 furnace price, specs, and installation cost, this review covers everything you need before making a decision.
The Carrier 59SP5A is a high-efficiency gas furnace offering up to 96.5% AFUE, multi-speed airflow, and advanced humidity control — making it a strong mid-tier option within Carrier’s lineup.
| Feature | Details |
|---|---|
| AFUE Rating | 96.3% – 96.5% |
| BTU Input | 40,000 – 120,000 |
| BTU Output | 39,000 – 117,000 |
| Burner Type | Monoport |
| Blower Motor | Multi-Speed ECM |
| ENERGY STAR® | Yes |
| Cabinet Height | 35 inches |
| Average Installed Cost | $4,835 – $6,170 |
Unit Cost Only: $2,800 – $3,800
Installed Cost: $4,835 – $6,170
Installation cost varies based on:
Home size
Duct modifications
Venting requirements
Removal of old equipment
Regional labor rates
Compared to entry-level 92% furnaces, the 59SP5 offers significantly better efficiency while remaining more affordable than premium Infinity models.
The 59SP5A is engineered for efficient operation and installation flexibility.
Ideal for tight installation spaces such as closets and mechanical rooms.
Precisely tuned burners ensure stable, quiet, and efficient combustion.
Draws air from outside the home for improved safety and combustion efficiency.
Built for corrosion resistance and long-term durability.
This furnace converts up to 96.5% of fuel into usable heat, significantly reducing heating waste compared to 80–92% models.
Enhances comfort by delivering smoother airflow transitions and improved electrical efficiency.
Works with compatible heat pump systems to optimize fuel usage during milder weather.
Meets high-efficiency standards and may qualify for regional rebates (where applicable).
Carrier integrates multiple sound-reduction technologies.
Reduces combustion and airflow noise through optimized internal design.
Minimizes vibration and heat loss.
Prevents abrupt air bursts, maintaining consistent and quieter performance.
Overall, the 59SP5A operates noticeably quieter than many single-stage entry-level furnaces.
Silicon nitride ignition system provides reliable startup and longer service life.
Improves summer dehumidification when paired with compatible cooling systems.
Built-in self-diagnostic system simplifies servicing and troubleshooting.
Lifetime limited heat exchanger warranty
10-year limited parts warranty (with registration)
Optional extended labor warranty
Registration within 90 days ensures full coverage.
High 96.5% efficiency at mid-range pricing
ENERGY STAR® certified performance
Enhanced humidity control for year-round comfort
Quiet operation with insulated cabinet
Hybrid heating capability for better energy savings
Compact design for retrofit installations
✔ Strong 96%+ efficiency
✔ ENERGY STAR® certified
✔ Improved humidity control
✔ Quiet multi-speed airflow
✔ Good balance of cost and performance
✖ Discontinued model
✖ Single-stage burner (not two-stage or modulating)
✖ Not as advanced as Infinity series
| Model | AFUE | Burner Type | Blower | Tier | Notes |
|---|---|---|---|---|---|
| 59SP5A | 96.3–96.5% | Monoport | Multi-Speed ECM | Budget | Better heating efficiency and humidity control |
| 59SC2A | 92.1% | Monoport | Multi-Speed | Budget | Lower efficiency, now below Canada’s minimum requirement |
The 59SP5A outperforms the 59SC2A with its higher efficiency, quieter operation, and better humidity management, making it a stronger option if available.
| Feature | 59SP5A | 59SC2A |
|---|---|---|
| AFUE | 96.5% | 92.1% |
| ENERGY STAR® | Yes | No |
| Efficiency Tier | Mid | Entry |
| Installed Cost | $4,835–$6,170 | $3,800–$4,800 |
Verdict: The 59SP5A delivers significantly higher efficiency and better long-term energy savings.
| Feature | 59SP5A | 59MN7A |
|---|---|---|
| AFUE | 96.5% | Up to 98.5% |
| Burner | Single | Modulating |
| Tier | Mid | Premium |
| Installed Cost | $4,835–$6,170 | $6,500+ |
Typical Carrier furnace prices range from $3,500 to $6,000 installed, depending on model and location.
The 59SP5A sits in the mid to upper range of budget-tier models, offering excellent performance for its price.
Financing options may be available through authorized Carrier dealers or HVAC contractors.
Verdict: Infinity offers maximum comfort and efficiency, but the 59SP5A provides excellent value at a lower cost.
| Key Factor | 59SP5A | 59MN7A (Infinity 98) |
|---|---|---|
| AFUE | 96.5% | Up to 98.5% |
| Heating Type | Single-Stage | Modulating |
| Comfort Level | Good | Premium |
| Installed Cost | $4.8K–$6.1K | $6.5K+ |
Compared to the Carrier Infinity® 98 – 59MN7A (Greenspeed® Intelligence model), which has a 97.2%–98.5% AFUE, the 59SP5A is less advanced but much more affordable.
Verdict:
The Infinity 98 delivers superior performance and efficiency, but the Performance 59SP5A remains a budget-friendly furnace that provides excellent value for money and reliable comfort for many years.
If available, the 59SP5A remains a strong option for homeowners seeking:
High efficiency without premium pricing
ENERGY STAR® eligibility
Improved humidity control
Quiet and reliable performance
For those wanting advanced modulation or communicating controls, Infinity models may be a better fit.
The Carrier Performance Boost 90 – 59SP5A is a high-efficiency, mid-tier furnace that offers excellent value for money. With 96.5% AFUE, ENERGY STAR® certification, and advanced humidity control, it bridges the gap between entry-level and premium systems.
Even though discontinued, it remains a smart purchase if found in stock — especially for homeowners wanting strong performance without the Infinity price tag.
Installed costs typically range from $4,835 to $6,170 depending on location and installation complexity.
The furnace offers 96.3% to 96.5% AFUE efficiency.
Yes, it meets ENERGY STAR® efficiency standards.
Yes, but some distributors may still carry remaining inventory.
Yes. With 96%+ efficiency, it performs well in colder regions compared to 92% furnaces.
Because it is ENERGY STAR® certified, it may qualify for rebates depending on your region.
Furnace, AC, or heat pump installation and replacement pricing in Canada varies depending on several important elements:
Square footage of your home and correct furnace sizing
Provincial location and weather conditions
Overall installation workload and labour requirements
Any duct system upgrades needed
Rates and experience of local HVAC providers
Whether the project involves repair or complete replacement
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