95% AFUE 4 Ton 70,000 BTU Downflow Multi-Speed Gas Furnace
SKU MGD95SE070B4XA
Customize it — compatible add-ons only
Seals the coil casing to the furnace for a clean transition.
Converts this single-stage natural-gas furnace to liquid propane (high-altitude kit available).
MRCOOL 24V smart thermostat for ducted systems — Wi-Fi control and scheduling.
Maintenance kit and coil cleaner keep efficiency (and the warranty) healthy.
Universally compatible tools and care items — maintenance kit, coil cleaner, install tools.
Sizing Help
Not sure if 0K BTU is right for your space?
Proper sizing prevents short-cycling, high bills, and premature failure. Our sizing tool takes 60 seconds.
Resources
Brochures & Manuals
Description
95% AFUE 4 Ton 70,000 BTU Downflow Multi-Speed Gas Furnace
What's in the Box
Here's what you'll receive with your order
95% AFUE 4 Ton 70,000 BTU Downflow Multi-Speed Gas Furnace
As described
Key Specifications
120V
Voltage
66,000BTU
Heating Capacity
95% AFUE 4 Ton 70,000 BTU Downflow Multi-Speed Gas Furnace — Model Details
What this specific model is sized for, how it installs, how it performs, and what it costs to run.
Room & Space Coverage — 66 BTU
The 95% AFUE 4 Ton 70,000 BTU Downflow Multi-Speed Gas Furnace delivers 66 BTU of cooling and heating capacity (4-ton class), sized for spaces up to 450 sq ft in standard 8-ft ceiling rooms with average insulation. At this capacity the unit targets small rooms, nurseries, tiny homes, enclosed porches, and dedicated zones that need precise temperature control without oversizing — oversized units short-cycle, which hurts humidity control and shortens compressor life.
Efficiency & Operating Cost
On the gas side the unit achieves 95% AFUE, meaning 95¢ of every fuel dollar becomes usable heat — the rest exits through the flue.
Power & Electrical Requirements
Power requirement: 120V 1-phase 60Hz (standard US 120V household outlet). Minimum circuit ampacity is 8.4A with a maximum overcurrent protection of 15A. Wire the outdoor unit with 14 AWG copper on a dedicated 15A double-pole breaker (or single-pole at 120V), with a disconnect within sight of the condenser per NEC 440.14.
Install Difficulty — Professional Install
This is a professionally-installed condenser that requires a licensed HVAC technician with EPA 608 certification. The tech will pull a vacuum on the line set to 500 microns, pressure-test with nitrogen, release the factory charge, and commission per MrCool's startup procedure. Budget 1 full day for install on a single-zone system.
What's in the Box & Compatibility
Ships as a Gas Furnace.
Product Details
There's nothing like your first high gas bill of the season to make you dread a long, cold winter. If that's the boat you're in, you need to make a change. You need to invest in a powerful, high quality, and energy efficient heater like the 95% AFUE multi-positional gas furnace by MRCOOL. Unlike a lot of other furnace models, the MRCOOL 95% AFUE furnace wastes a minimal amount of fuel. This ensures most of your dollar is spent wisely rather than wasted, and that in turn means you have to spend less of those dollars to keep your house warm all winter long. Depending on the severity of winter weather where you live, that might mean the difference between a few dozen dollars or a few hundred dollars. So don't dread winter. Instead, choose the efficient, versatile and high quality heat of the MRCOOL. It's also protected by a 20 year Heat Exchanger Warranty, and a 10-Year Registered Parts Warranty.
Specifications
| Heating Capacity | 66 BTU |
| Voltage | 120 V |
| Tonnage | 4 Ton |
| Airflow | 1585 CFM |
| Phase | 1 |
| Country of Origin | Mexico |
Features
- Multi-speed high efficiency (constant torque) blower motor
- Self diagnostics saves last 10 fault codes regardless of power interruption
- Standardized widths for easy coil fit
- 10 year registered parts warranty
- 20 year heat exchanger warranty
- Aluminized steel inshot burners for smooth ignition
- Complies with California's South Coast Air Quality
- Optional LP kit
- Easily removable slide out blower design
- Constant torque motor produces consistent airflow and even temperatures
Frequently Asked Questions
Everything you need to know about this product
What size room will the 95% AFUE 4 Ton 70,000 BTU Downflow Multi-Speed Gas Furnace cool?
Do I need a licensed HVAC installer?
What electrical circuit do I need for installation?
How fast does HVACZAR ship this unit?
What if it arrives damaged or I change my mind?
What is the warranty on the 95% AFUE 4 Ton 70,000 BTU Downflow Multi-Speed Gas Furnace?
How long does shipping take?
What size room does 66 BTU cover?
Do you offer returns?
How can I pay?
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Ships Nationwide — Shop by State
We deliver the 95% AFUE 4 Ton 70,000 BTU Downflow Multi-Speed Gas Furnace to all 50 states via FedEx, UPS, and truck freight. Each state page lists local rebate programs and utility incentives.