Brushless Cabin Heater (12 & 24 Volt)

From $259.95 to $285.00
SA12-300012V / 360W6012
SA12-400012V / 480W8016
SA12-500012V / 600W10,020
SA24-250024V / 600W10,020
SA24-350024V / 840W14,028
SA24-450024V / 1080W18,036
Subtotal $0.00
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DC Thermals heaters are hand built in the USA with only the very best parts, motors, and wire. The heaters are not constructed of snap together plastic, and cheap internal parts. They are constructed with DC Thermals own heater housings out of vinyl clad aircraft aluminum which is riveted together. DC Thermals heaters are designed to last you a lifetime, not a season. DC Thermal heaters will work in any vehicle with a DC electrical system from 12- 48 volts including cars, trucks, vans, busses, heavy equipment. DC Thermals heaters aren’t your average heater. They offer the ultimate in durability and reliability and excel in the harshest possible environments.

The new Brushless SA series line of heaters are based on DC Thermals proven Stealth series, but with a newly designed brushless fan. The brushless cabin heater design has proven to work well with sensitive electronics found in some of todays equipment. The brushless design has proven to have very little EMI noise when tested on a scope.

RuCar vacuum sealed elements are featured in the brushless design as well as DC Thermal's own RuCar vibration dampeners. The Stealth Brushless series has a newly designed fan and motor assembly as well as a complete new mounting system. The Stealth SA is the perfect choice for the person who wants to add reliable INSTANT heat in just a few minutes. No water lines to run, fittings to install or worry about a corroded core down the road, and most importantly INSTANT HEAT, INSTANT DEFROST. No warm up time! These heaters are available from 12-48 volts, and different wattages as well. The Stealth heater is simple to install and can be operational in minutes. Measuring only 6" long and 5" tall, our Stealth heater will fit in virtually any small space. RuCar elements allow the heaters to be mounted vertically OR horizontally which allows even a tighter mounting space.

The Stealth heaters feature RuCar elements which have been tested to have a life expectancy of 10,000 hours, are vacuum sealed, and are exclusive to DC Thermal. RuCar elements operate at temperatures in excess of 650 degrees, are up to 300% more efficient than standard alloy heater elements.

California Prop 65 Warning Symbol

WARNING: Cancer and Reproductive Harm -


  • Heater Dimensions: 6”x 5” X 4”
  • Brushless 50,000 Hour Ball Bearing Fan
  • 10,000 Hour DC Thermal ©RuCar Vacuum Sealed Elements.
  • Case Construction: Riveted T5052 Aircraft Aluminum.
  • Wired Entirely with GXL Wire
  • Thermally Protected
  • HIGH and LOW HEAT Settings
  • Comes complete with mounting hardware, mounting bracket, fuse, fuse holder, electrical connector ends, and detailed instruction
  • TWO YEAR Parts AND Labor Warranty


When I run it on high, 30 amps the positive wire gets really hot. I think if I left in on for very long it would melt the insulation off the positive wire coming out of the heater. I used a 8 gauge wire 5’ foot long direct to battery running through a 80 amp relay

Dennis H
February 24, 2021


Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: How many amps does this heater draw on a 12-14 volt DC system?

Part Number 05-02121 draws 30 amps.

Q: I have a small ultralight aircraft, completely enclosed. Would this heater keep it warm inside during the winter months? If running it off a seperate battery, how long would it run? Regarding Part Number 05-02121 Thank you

The SA12-5000 heater would warm the cabin. With no alternator this heater would deplete a battery in about 8 hours.

Q: Do you have any info on the weight of these brushless cabin heaters?

Yes, these heaters weigh approximately 3 lbs. Part # 05-02121 was used as a sample to obtain the weight.

Q: I am looking for a 24 v heater for construction equipment. How many amps does the 05-04855 or the 05-03870 draw?

The 2500 (part # 05-04855) pulls 25 amps on high and 17 on low the 3500 (part # 05-03870) pulls 35 amps on high and 17 on low.

Q: Can a thermostat be added to this? Would a house thermostat work?

Per the supplier, yes and no. They offer a digital temperature controller and it can be special ordered. Please contact our sales staff for pricing, lead time, and ordering.

Q: What gauge of wire does SA24-4500 have for the input voltage?

That heater is built with a 10 GA wire coming out of it.

Q: Part # 05-02123: draws how many amps?

That heater draws 45 on high and approximately 30 on low.

Q: What is the BTU rating on this heater?

The BTU column on the web site calls out 6012 for this unit.

Q: Does the Brushless Cabin Heater hold any aviation approval? PMA, 8130, Form one?

No this does not have any aviation approvals and is designed for experimental aircraft applications only.

Q: How many amps draw for the SA12-5000 model?

The heater will draw 30 Amps on high. 20 Amps on low.

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