Day & Night Furnaces

Everything you need on Day & Night Furnaces, including model details, industry rankings and customer reviews, all in one place.

Day & Night Furnace Overview

Day and Night is a well-known HVAC company. Founded in California in 1909, Day and Night was originally a solar heating company. The company began manufacturing space heaters before expanding into HVAC products. After several changes in ownership, Day and Night products are now marketed by Carrier’s company, International Comfort Products.

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Gas furnace overview 

Day and Night offers various types of residential furnaces.

  • Ion series: These top-of-the-line gas furnaces have two-stage or modulating gas valves. These units control temperatures and ensure consistent warmth.
  • QuietComfort series: This series includes two-stage gas furnaces that work with compatible thermostats and heat pumps. These units provide efficient heating and precise temperature control.
  • Performance series: This line of budget-friendly units includes single-stage furnaces that offer continuous heating throughout the winter season.

Day and Night furnace series and models

When choosing a new furnace, homeowners should consider factors including local climate, efficiency ratings, fuel consumption and affordability. The ideal furnace size depends on the size of the home and the required heat output.

Types of Day and Night gas furnaces

Day and Night furnaces are highly efficient and include excellent warranties. Day and Night delivers Energy Star-certified furnaces at affordable prices.

G9MAE variable-stage gas furnace

This gas furnace has an AFUE rating of up to 98 percent. This model features modulating gas heat performance and is ideal for homes in extremely cold climates.

With a variable-speed blower, this furnace is Energy Star qualified. The unit can be paired with compatible air conditioners and the Wi-Fi-enabled Ion thermostat system controls. This furnace comes with Day and Night’s no-hassle replacement warranty.

Technical specs:

  • Uses natural and propane gas and features a high-efficiency, variable-speed ECM blower motor
  • Cooling capacities from 510 to 1,335 cubic feet per minute (CFM)
  • Modulating heat operation with energy-saving modes from 40 to 100 percent capacity and Rigid Press Joint heat exchangers
  • 12 vent configurations and four position installations: upflow, downflow, horizontal left and horizontal right
  • Spark gas ignitions, high-temperature controls to prevent overheating
  • Heating capacities of 60,000 to 120,000 British thermal units per hour (BTU/h)
  • Weight and dimensions (G9MAE0601714A): 35 x 17.5 x 29.5 inches, 154 pounds

Price: The unit alone costs about $2,125.

G8MVL two-stage gas furnace

With an AFUE rating of up to 80 percent, this gas furnace supports two-stage cooling units and has heating capacities of 60,000 to 120,000 BTU/h. This model features a variable-speed ECM blower motor and Rigid Press Joints.

Technical specs:

  • 44,000 thousand British thermal units per hour (MBTUH) heating input and cooling capacity of 410 to 1,175 CFM
  • Position installation is for upflow, downflow, horizontal left and horizontal right
  • Weight and dimensions (G8MVL0451412B): 33 1/3 x 14 3/16 x 29 inches, 107 pounds

Price: Not including installation, this unit costs about $1,310.

G9MXT multispeed gas furnace

This two-stage ECM furnace includes a multispeed blower. QuietComfort technology reduces unit noise, and this model is Energy Star certified. The furnace offers summer dehumidification and has an AFUE rating of up to 96 percent.

Technical specs:

  • Heating input of 40,000 MBTUH and cooling capacity of 385 to 925 CFM
  • California NOx approved and includes an electronic air cleaner terminal
  • Multi-position installation for upflow, horizontal left and horizontal right
  • Weight and dimensions (G9MXT0401410A): 35 x 14 3/16 inches x 29 1/2 inches, 125 pounds

Price: As a standalone unit, pricing for this model starts at approximately $1,100. 

G9MXE multispeed gas furnace

With an AFUE rating of up to 96 percent, this single-stage ECM gas furnace ensure optimal temperature control even on the coldest winter nights. The unit includes a steel heat exchanger and has high-temperature limit controls to prevent overheating.

Direct ignition occurs with a silicon nitride ignitor. The unit features a corrosion-resistant steel cabinet. The furnace uses natural and propane gas and includes up to 12 vent configurations.

Technical specs:

  • Heating input of 26,000 MBTUH and cooling capacity of 375 to 895 CFM
  • Weight and dimensions (G9MXE0261410A): 35 x 14 3/16 x 29 1/2 inches, 118 pounds

Price: This model costs about $1,495, not including installation.

N9MSB single-stage gas furnace

This furnace includes a single-speed blower and has anAFUE rating of up to 92 percent. With single-stage operation and affordable pricing, this unit provides reliable comfort throughout the winter months.

This model includes a single-stage gas valve and spark gas ignition. A sound-reducing inducer motor and a soft-mounted blower facilitates quiet performance.

Technical specs:

  • Heating input of 40,000 MBTUH and cooling capacity 595 to 970 CFM
  • Heating capacities of 40,000 to 120,000 BTU/h
  • Weight and dimensions (N9MSB0401410C): 35 x 14 3/16 x 29 1/2 inches, 121 pounds

Price: The cost of the unit alone starts at $1,400.

Day and Night gas furnace features

Day and Night offers residential heating and cooling products. The company’s most efficient unit has an AFUE rating of 98 percent, and most Day and Night products qualify for Energy Star certification. Day and Night is a trusted brand with a large selection of energy-efficient furnaces that include excellent warranty coverage.

SEER and AFUE ratings

A furnace’s annual fuel utilization efficiency (AFUE) rating illustrates its energy efficiency. Homeowners in mild climates may require a unit with an AFUE rating of only 80 percent. Those in colder climates often need a furnace with an AFUE rating of 95 percent or higher. Day and Night offers furnaces with AFUE ratings ranging from 80 percent to 98 percent. All units for sale by U.S. manufacturers must have an AFUE rating of at least 80 percent.

  • The G8MTL, G8MVL, N8MXL and N8MSN models are ideal for homes in warmer climates, which require AFUE ratings of 80 to 90 percent.
  • For customers in cooler climates, who require a furnace with an AFUE rating of 90 to 95 percent, options include the N9MSB and N9MSE.
  • Homes in extremely cold climates often require a unit with an AFUE of 95 percent or higher. Models that meet this standard include the N9MSE, G9MVE, G9MXE, G9MXT and G9MAE.


Several factors can affect the price of a new furnace, including local weather and installation costs. Additional factors that can impact cost include required equipment, materials and labor. The installation complexity can also increase the overall cost of a high-efficiency gas furnace.

For an accurate quote, including installation, homeowners can speak with a local HVAC professional. A professional can estimate pricing based on the homeowner’s heating needs and the square footage, age and layout of the home.

Care and maintenance

Residential gas furnaces typically last 15 to 30 years. However, maintenance and usage impact the life of a furnace. Furnaces that are used infrequently or are used in mild climates often last about 40 years. Regular maintenance can help extend the life of your furnace.

Homeowners should speak with a local professional before buying a new furnace or upgrading an existing unit. An HVAC professional can calculate the necessary heating output to help you select a unit that is both effective and efficient.

Day and Night gas furnace warranties

Day and Night offers exceptional warranty coverage. A limited warranty is available for all functional parts, and most products include a 10-year limited warranty for parts.

Midrange and premium furnaces include a lifetime warranty on the heat exchanger, and premium furnaces come with a no-hassle limited replacement warranty. With this coverage, if the heat exchanger fails, Day and Night will replace the entire unit.

Below are the no-hassle replacement warranties that Day and Night offers for each level of furnace.

  • 10 years for top-of-the-line furnaces
  • Five years for mid-tier furnaces
  • One to three years for standard level furnaces
  • No replacement warranty for entry-level products

With timely product registration, homeowners receive full warranty benefits. Customers who plan to sell their home in the future may want to ask whether warranty coverage carries over to a new owner.

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