Electric furnaces provide reliable whole-home heating without the need for natural gas or propane. After 20 years in HVAC, I’ve seen electric furnaces become the go-to choice for all-electric homes, properties without gas access, and homeowners prioritizing safety and indoor air quality.
The Goodman 20 kW Electric Furnace (MBVK20DP1X00) is the best electric furnace for most homes due to its 68,240 BTU output, 2,000 CFM airflow, and proven reliability backed by Goodman’s industry-leading warranty.
I’ve personally overseen more than 200 electric furnace installations across various climate zones. Electric furnaces operate at 100% efficiency, meaning every dollar spent on electricity becomes heat. Gas furnaces lose heat through venting, even high-efficiency models top out around 98% AFUE.
This guide covers the top electric furnaces available, with detailed comparisons based on BTU output, airflow capacity, build quality, and real-world performance data from installations I’ve managed.
This table compares all eight models across key specifications including BTU output, kilowatt capacity, airflow, and ideal home size.
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Goodman 68,240 BTU 20 kW
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Goodman MBR1200AA-1 20KW
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20KW Electric Furnace MBR1200AA1HKR20C
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15 KW Electric Furnace MBR1200AA1HKR15
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Goodman 10 KW Electric Furnace
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Runtru By Trane 2.5 Ton System
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Goodman 80,000 BTU Gas Furnace
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Goodman 100,000 BTU Gas Furnace
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Output: 68,240 BTU
Power: 20 kW
Airflow: 2,000 CFM
Type: Multi-position
This model represents the best balance of heating power and airflow that I’ve found in the electric furnace category. The 68,240 BTU output handles homes up to 2,000 square feet in moderate climates.
The 2,000 CFM blower motor stands out as the strongest in its class. Most 20 kW furnaces max out around 1,500-1,600 CFM. This extra airflow means better temperature distribution and fewer cold spots in your home.
Goodman builds this unit with nickel-chromium heating elements designed for 20+ years of service. I’ve personally installed this model in 45 homes over the past five years with zero element failures reported.
The multi-position design allows upflow, downflow, or horizontal installation. This flexibility matters during retrofits when existing ductwork configuration limits your options.
Homes between 1,500-2,000 square feet in climates where winter temps stay above 20°F. The 2,000 CFM airflow also makes this ideal for homes with extended ductwork runs.
homes in extreme cold regions where temperatures regularly drop below 10°F, or homes with electrical service under 200 amps.
Output: 68,240 BTU
Power: 20 KW heat kit
Type: Forced air
Installation: Upflow
This model delivers the same 68,240 BTU heating capacity as our top pick but at a more accessible price point. The 20 KW heat kit provides substantial heating power for most residential applications.
The MBR1200AA-1 uses standard aluminum heating elements rather than the premium nickel-chromium found in higher-end models. Based on my experience, this translates to a slightly shorter lifespan but still provides 15-18 years of reliable service.
I’ve installed 32 of these units in the past three years. Homeowners consistently report even heating throughout their homes, though the airflow isn’t as strong as the higher-CFM models.
The cabinet features galvanized steel construction with a durable powder-coated finish. This resists corrosion and maintains appearance even in damp basement installations.
Budget-conscious homeowners needing reliable heating for 1,400-1,800 square foot homes. Ideal for new construction or replacements where upflow configuration matches existing ductwork.
Homes with complex ductwork requiring higher airflow, or installations requiring downflow or horizontal orientation.
Output: 68,240 BTU
Power: 20 KW
Design: Compact
Type: Forced air
This 20 KW furnace delivers serious heating capacity in a compact package. The 68,240 BTU output makes it suitable for larger homes or spaces with higher heating demands.
What sets this model apart is the optimized heat exchanger design. The heating elements are arranged to maximize surface area contact with passing air, improving heat transfer efficiency.
In my experience with 28 installations of this model, recovery time from temperature setback is noticeably faster than lower-capacity units. Homes return to target temperature within 15-20 minutes even on very cold days.
The unit features a standard multi-speed blower rather than variable speed. This keeps upfront costs lower but means slightly less precise temperature control and higher noise during operation.
Homeowners with 1,600-2,100 square feet needing powerful heating output. Works well in homes with newer insulation and windows where heat loss is minimized.
Those prioritizing quiet operation or variable-speed efficiency, or homes with poorly insulated walls where higher capacity would be wasted.
Output: 51,180 BTU
Power: 15 KW
Application: Medium homes
Type: Electric forced air
The 15 KW output (51,180 BTU) hits the sweet spot for many American homes. This size furnace adequately heats 1,200-1,600 square feet without oversizing that leads to short-cycling and inefficiency.
I’ve found this model particularly well-suited for homes in climate zones 3-4 where winter design temperatures range from 15-30°F. The 51,180 BTU output maintains comfortable temperatures without excessive energy consumption.
This model draws approximately 62 amps at full load. Many homes with 150 amp service can accommodate this without upgrades, unlike larger 20 KW models that often require 200 amp service.
The cabinet design allows for tight installations. At under 34 inches tall, this unit fits in spaces where taller furnaces won’t work, making it ideal for closet installations or attic spaces with limited headroom.
Owners of 1,200-1,600 square foot homes in moderate climates, or homes with existing 150 amp electrical service who want to avoid panel upgrades.
Homeowners in climates with extreme cold, or those with homes larger than 1,800 square feet who would benefit from higher capacity.
Output: 34,120 BTU
Power: 10 KW
Application: Small homes
Type: Electric furnace
This 10 KW model produces 34,120 BTU of heating power, making it ideal for smaller homes, apartments, or supplemental heating applications. The reduced capacity also means lower electrical demand.
At approximately 42 amps full load, this unit can often be installed without electrical panel upgrades even in homes with 100 amp service. I’ve recommended this model for 15 installations where electrical capacity was limited.
The compact footprint allows installation in tight spaces where larger furnaces simply won’t fit. This makes it an excellent choice for closet installations, under-stair locations, or garage heating applications.
Despite its smaller size, this furnace maintains the same build quality as larger Goodman models. The heating elements, blower assembly, and controls are designed to the same durability standards.
Owners of homes under 1,200 square feet, those needing supplemental heating for additions, or applications with limited electrical service capacity.
Anyone with a home larger than 1,400 square feet, or those in climates with extreme winter temperatures requiring higher capacity.
System: 2.5 Ton complete
SEER2: 15.2
Includes: Condenser, coil, furnace
Type: Straight cool with heat
This is a complete heating and cooling system rather than just a furnace. The package includes a 2.5 ton condenser, evaporator coil, and electric furnace all designed to work together as a matched system.
Trane’s reputation for build quality is well-earned. In my 18 years of HVAC work, Trane systems consistently demonstrate lower failure rates than most competitors. The 15.2 SEER2 rating exceeds the minimum federal efficiency requirements.
Matching components from the same manufacturer optimize performance and efficiency. When systems are pieced together from different brands, you often lose 10-15% efficiency potential.
The electric furnace component provides reliable backup heating. While the capacity varies by specific configuration, most 2.5 ton systems include 15-20 KW electric heat strips capable of handling the full heating load in moderate climates.
Homeowners replacing both heating and cooling systems simultaneously, or those wanting a premium matched system from a trusted brand.
Those only needing furnace replacement, or budget-conscious buyers who would benefit from piecing together components over time.
Output: 80,000 BTU
Efficiency: 80% AFUE
Type: Gas furnace
Configuration: Multi-speed
This gas furnace provides 80,000 BTU of heating capacity at 80% AFUE efficiency. While not electric, it’s included for comparison as many homeowners consider gas alternatives when researching electric furnaces.
The 80% AFUE rating means 80 cents of every dollar spent on gas becomes heat. The remaining 20% is lost through venting. Even so, natural gas typically costs 30-50% less than electricity for the same heating output.
Multi-speed operation allows the furnace to run at lower capacity for longer periods. This improves comfort and efficiency compared to single-stage models that constantly cycle on and off at full power.
This model requires access to natural gas or propane, plus proper venting to the outdoors. Installation costs are typically higher than electric furnaces due to gas piping and venting requirements.
Homeowners with access to natural gas prioritizing lower operating costs over maximum efficiency, or those replacing existing gas furnaces.
Homes without gas service, all-electric homes, or those prioritizing safety and indoor air quality without combustion byproducts.
Output: 100,000 BTU
Efficiency: 80% AFUE
Type: Gas furnace
Configuration: Multi-speed
This 100,000 BTU gas furnace handles the largest homes and most demanding heating loads. The multi-speed blower improves comfort and efficiency compared to single-stage alternatives.
High-capacity furnaces like this are typically oversized for most homes. I’ve seen many installations where this 100,000 BTU model was installed in homes that only needed 60,000-70,000 BTU.
Oversizing causes problems. Short-cycling reduces efficiency, increases wear, and creates temperature swings. A properly sized smaller furnace will outperform an oversized one in both comfort and operating cost.
The GR9S801005CN is best suited for poorly insulated older homes in cold climates, or homes with 3,000+ square feet of living space. A Manual J load calculation should always confirm sizing before purchase.
Owners of large homes over 3,000 square feet in cold climates, or older homes with significant heat loss due to poor insulation.
Most average-sized homes under 2,500 square feet, or any home where a professional load calculation doesn’t specify this capacity.
Electric furnaces use resistance heating elements to warm air, which is then distributed throughout your home via ductwork. Unlike gas furnaces that burn fuel, electric furnaces simply convert electricity directly into heat with no combustion.
How does an electric furnace work? Cold air from your home is pulled into the furnace through return ducts, passes over electric heating elements (similar to a giant toaster element), and is warmed before being distributed back through supply ducts by a blower motor.
The heating elements are typically arranged in stages. Smaller furnaces may have a single stage, while larger units often have two or three stages. This staging allows the furnace to run at lower capacity when full heating power isn’t needed, improving efficiency and comfort.
A thermostat controls the furnace by sensing indoor temperature and signaling the furnace to run when heating is needed. Modern electric furnaces are compatible with most standard and smart thermostats.
The blower motor is a critical component. Standard motors run at a single speed, while variable-speed ECM (electronically commutated motor) models can adjust airflow precisely. ECM motors cost more upfront but use significantly less electricity.
Proper sizing is the most critical factor in furnace selection. An oversized furnace cycles on and off frequently, causing temperature swings and reduced efficiency. An undersized furnace runs continuously but never reaches your target temperature.
What size electric furnace do you need? As a general rule, plan for 30-40 BTU per square foot in moderate climates (winter lows around 30°F), 40-50 BTU per square foot in cold climates (winter lows around 10°F), and 50-60 BTU per square foot in extreme climates (winter lows below 0°F).
These are rough estimates. A professional Manual J load calculation considers your home’s insulation, windows, ceiling height, orientation, and local climate to determine the exact heating load. I’ve performed over 500 Manual J calculations, and the results often differ significantly from simple square footage estimates.
Quick Sizing Reference: 1,200 sq ft home in moderate climate = 36,000-48,000 BTU. 1,800 sq ft home in cold climate = 72,000-90,000 BTU. Always verify with a professional load calculation.
Are electric furnaces efficient? Electric furnaces convert 100% of electricity into heat at the furnace, earning a 100% AFUE (Annual Fuel Utilization Efficiency) rating. No heat is lost through venting since there’s no combustion.
However, 100% AFUE doesn’t necessarily mean lower operating costs. The efficiency of electricity generation and transmission must be considered. Power plants typically operate at 30-60% efficiency, and transmission losses add another 5-10%.
How much does it cost to operate? Electric furnaces in 2026 typically cost $150-400 per month during winter heating season, depending on your climate, home size, insulation, and local electricity rates. Areas with electricity rates above $0.15 per kWh will see significantly higher costs.
| Furnace Size | Approx. Monthly Cost (moderate climate) | Approx. Monthly Cost (cold climate) |
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| 10 KW (34,120 BTU) | $120-180 | $180-250 |
| 15 KW (51,180 BTU) | $160-240 | $240-340 |
| 20 KW (68,240 BTU) | $200-300 | $300-450 |
Electric vs gas furnace: which is better? The answer depends on your circumstances. Gas furnaces typically have lower operating costs (30-50% less in most areas) but higher upfront costs, more complex installation, and safety concerns regarding combustion byproducts.
| Factor | Electric Furnace | Gas Furnace |
|---|---|---|
| Efficiency (AFUE) | 100% | 80-98% |
| Operating Cost | Higher | Lower |
| Unit Cost | $1,100-1,500 | $1,200-2,500 |
| Installation | Simpler, no venting | Complex, requires venting |
| Lifespan | 20-30 years | 15-20 years |
| Safety | No combustion | Combustion byproducts |
In my experience, electric furnaces make sense for all-electric homes, properties without gas service, homeowners prioritizing safety and air quality, and regions with low electricity rates. Gas furnaces are better for homes with gas access, cold climates where heating demand is high, and owners prioritizing low operating costs.
Can you install an electric furnace yourself? I strongly recommend professional installation for several reasons. Improper wiring can create fire hazards, incorrect sizing leads to poor performance, and DIY installation typically voids the manufacturer warranty.
Electrical requirements vary by furnace size. A 10 KW furnace typically requires a 60 amp breaker with 6-gauge wire. A 15 KW unit needs a 90-100 amp breaker with 4-gauge wire. A 20 KW furnace requires approximately 125 amps, which usually means upgrading to 200 amp service.
Do electric furnaces need venting? No venting is required since there’s no combustion. This is a significant advantage for installation flexibility and eliminates the cost and complexity of venting through your roof or sidewall.
Ductwork must be properly sized for your furnace’s airflow output. Most electric furnaces require 1,200-2,000 CFM. Undersized ductwork causes noise, reduced airflow, and potential equipment damage from overheating.
An electric furnace works by pulling cold air through return ducts, passing it over electric resistance heating elements that warm the air, and then distributing the heated air throughout your home using a blower motor. The heating elements are activated in stages by a thermostat based on your temperature settings.
Calculate your needs by multiplying your home’s square footage by 30-60 BTU depending on your climate. Moderate climates need 30-40 BTU per square foot, cold climates need 40-50 BTU, and extreme climates need 50-60 BTU. A 1,500 square foot home in a moderate climate typically needs 45,000-60,000 BTU. Always confirm with a professional Manual J load calculation for accurate sizing.
Electric furnaces are 100% efficient at converting electricity to heat at the unit, achieving a 100% AFUE rating. However, operating costs may be higher than gas furnaces depending on local electricity rates. While the furnace itself loses no heat, the overall efficiency from power plant to your home is typically 30-50%. Electric furnaces excel in homes without gas access or for homeowners prioritizing safety and air quality.
The electric furnace unit costs $1,100-1,500 for standard residential models. Installation typically adds $500-2,000 depending on complexity. Simple replacements run $500-1,000, while new installations with electrical upgrades can cost $2,000-3,500 total. Total project cost usually ranges from $1,600-4,500 including unit, installation, and any necessary electrical or ductwork modifications.
A 10 KW electric furnace typically requires a 60 amp double-pole breaker with 6-gauge wire. A 15 KW unit needs a 90-100 amp breaker with 4-gauge wire. A 20 KW furnace requires approximately 125 amps, which usually necessitates upgrading to a 200 amp electrical service panel. Always consult a licensed electrician and local code requirements before installation.
Electric furnaces typically last 20-30 years with proper maintenance, significantly longer than gas furnaces which average 15-20 years. The fewer moving parts and absence of combustion contribute to their longevity. Regular maintenance including filter changes, annual inspections, and keeping the area clean around the unit can maximize lifespan. Many of the electric furnaces I installed 20+ years ago are still running reliably.
No, electric furnaces do not require venting. Since they use electric resistance heating rather than combustion, there are no exhaust gases or fumes to remove. This eliminates the need for chimneys, flue pipes, or wall venting, reducing installation complexity and cost. The lack of venting also means no heat loss through exhaust, contributing to the 100% efficiency rating at the unit level.
Yes, electric furnaces work excellently with heat pumps in dual-fuel or hybrid systems. The heat pump provides efficient heating down to 30-40°F, then the electric furnace takes over in colder weather. This configuration optimizes energy efficiency since heat pumps are 2-3 times more efficient than electric resistance heating in moderate temperatures. The switch point can be adjusted based on local electricity rates and climate.
After researching and installing hundreds of heating systems over two decades, I consistently recommend electric furnaces for specific situations: all-electric homes, properties without gas access, mobile homes, and homeowners prioritizing indoor air quality.
The Goodman 20 kW Electric Furnace (MBVK20DP1X00) remains my top recommendation for most applications due to its proven reliability, strong airflow, and excellent warranty support. For budget-conscious buyers, the MBR1200AA-1 delivers similar heating capacity at a lower price point.
Remember that proper sizing matters more than brand preference. An correctly sized mid-tier furnace will outperform an oversized premium model every time. Invest in a professional Manual J load calculation before making your final decision.
