MRCOOL

80% AFUE 3 Ton 70,000 BTU Downflow Multi-Speed Gas Furnace

Regular price  Sale price  $1,366.00 $1,366.00 Unit price  Sold out
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  • Authorized MRCOOL dealer - full factory warranty

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Product details

When harsh winter weather strikes, nothing compares to the warmth and safety a powerful reliable gas furnace can provide. While furnace heating technology has been around for decades, not all systems are created equally. Some are definitely better than others. One of the best on the market is the MRCOOL single stage, 80% AFUE gas furnace. This system can be installed down flow, and is designed to operate for decades, provide powerful heating capability, and, best of all, keep your heating bill affordable at the same time. It does the latter via its 80% AFUE energy efficiency rating. That mark of quality ensures 80% of every dollar you spend on heating fuel gets turned into real, effective heat for your home.

  • Easily removable slide out blower design
  • Registered 10-year parts warranty
  • Rotatable draft inducer for venting flexibility
  • Downflow furnace
  • Heating efficiency of 80% AFUE
  • AHRI Certified
  • LP kit not included
  • Aluminized steel tapered crimped non-welded clam shell heat exchanger design
  • Compact 33" height
  • Left or right utility connections
  • Multi-speed high efficiency (constant torque) blower motor
  • Zero step horizontal conversion
Shipping and Payments

We process orders within 1-2 business days. Once your order has shipped, you will receive a confirmation email with tracking information.

Estimated Delivery Times
Standard Shipping: 3-7 business days
Expedited Shipping: 2-3 business day
Express Shipping: 1-2 business days
Delivery times may vary during holidays, promotions, or due to carrier delays.

Order Tracking

Once your order ships, you will receive a tracking number via email. Please allow up to 24 hours for tracking information to update.

Refund and returns

We want you to love your purchase. If you're not completely satisfied, you may return eligible items within 30 days of delivery.

Return Requirements

Items must be:
Unused and in original condition

Returned with original packaging
Accompanied by proof of purchase
Non-Returnable Items

The following items cannot be returned:


Gift cards
Final sale items
Personalized or custom-made products
Digital products and downloads

Technical specifications

Specifications

Full engineering data for this system. Certified performance ratings per AHRI Standard 210/240.

Model MGD80SE070B3A
UPC 810512033683

Performance

Heating capacity 66,000 BTU

Electrical

Voltage 120V / 60Hz
Circuit breaker 15 A
MCA (min. circuit ampacity) 6.8 A

DIY installation

Or book certified installation

Our licensed team installs what we sell - sized right, warrantied, done in a day.

Questions & answers

Before you buy

Everything homeowners ask about installing and sizing a MRCOOL system.

Does this need professional installation?

Yes. Gas furnaces involve fuel connections, combustion venting and electrical work. Installation must be done by a licensed professional and inspected to local code.

What size furnace do I need?

Furnace sizing comes from a heating load calculation for your home rather than square footage alone. Oversizing causes short cycling and uneven temperatures.

What does the AFUE rating mean?

AFUE is the share of fuel the furnace turns into usable heat across a season, so a higher number means less fuel wasted. This listing shows its rating in the specifications.

Will it work with my existing ductwork?

Often yes, but the ducts have to handle the furnace airflow. A technician should verify duct sizing and static pressure before installation.

80% AFUE 3 Ton 70,000 BTU Downflow Multi-Speed Gas Furnace

Regular price  Sale price  $1,366.00 $1,366.00

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