maXpeedingrods 8KW Bluetooth Heater
#1 in SplitFull review
A bargain split heater for a van, RV or workshop on a budget. Expect closer to 5 kW than the 8 kW on the box, and no stated warranty.
Amazon $95.99$95.99
3.5/5
For van, truck and boat owners who want a quiet, type-approved 2 kW heater that works at high altitude. It costs much more than clones but is built to run for thousands of hours.
- 2.2 kWHeat output
- 0.1 to 0.27 L/hFuel burn
- 6 to 27 WPower draw
- ECE R122Type approval
- 2 yearsWarranty
Check price at Amazon$1,250
Price checked October 30, 2026. As an Amazon Associate we earn from qualifying purchases.
Older model: this replaces the Espar Airtronic S2 D2L (rated 3.5). See every Espar Airtronic 3 generation.
Pros
- Type approved to ECE R122 for vehicle installation
- Adjusts itself for altitude up to about 13,000 ft
- Draws only 6 to 27 W, easy on a house battery
- Quieter fan and fuel pump than the S2 it replaces
Cons
- About $1,250 for 2.2 kW, several times the price of clone heaters
- The listing does not say which controller is in the kit
- Needs a proper install with fuel standpipe and exhaust
The Espar Airtronic 3 family
Every Espar Airtronic 3 model we rank, smallest first. Ratings compare each against its own type.
| Model | Heat output | Rating | Price |
|---|---|---|---|
| Espar Airtronic S3 D2L (this one) | 2.2 kW | 3.5/5 | $1,250 |
| Espar Airtronic M3 D4L | 4 kW | 3.4/5 | $1,675 |
How it scores
The rating comes from 6 measured or published factors, each scored 0-100 against fixed reference points for its type. How we rank explains each one.
Specifications
| Model number | Airtronic S3 D2L 12V (AS3 D2L, 25.2953.05.0000) |
|---|---|
| Heating | |
| Heat output (maker) | 2.2 kW |
| Lowest output | 0.8 kW |
| Fuel burn | 0.1 to 0.27 L/h |
| Build | Split (installed) |
| Power | |
| Supply | 12V |
| Running draw | 6 to 27 W |
| Starting draw | 90 W |
| Controls and safety | |
| Thermostat | Yes |
| Automatic altitude | Yes, to 13,120 ft |
| CO shutoff | No |
| Type approval | ECE R122 |
| Build | |
| Dimensions | 12.2 x 4.5 x 4.8 in |
| Weight | 5.5 lb |
| Warranty | 2 years |
| Released | 2021 |
Alternatives in this type
Autoterm Air 2D
#3 in SplitFull review
For van and boat owners who want a type-approved 2 kW heater for less than Webasto or Espar. Add a timer panel if you want it warm before you wake.
Amazon $949.99$949.99
Espar Airtronic S2 D2L
#4 in SplitFull review
For van and truck owners who want a type-approved 2 kW heater with low power draw and a timer. The newer Airtronic S3 D2L now does the same job for less.
Amazon $1,315$1,315
Compare
Compare the Espar Airtronic S3 D2L with any other diesel heater →
More from Espar: every Espar product ranked.