WAYSKA WKH-B3 8kW Diesel Heater
#15 in SplitFull review
A complete split kit with a big tank and remote for trucks, trailers and boats, but it is a generic clone priced well above others like it.
Amazon $189.99$189.99
3.0/5
A bare-bones, very cheap split heater kit for DIY installs in trucks, campers and boats at low altitude. Real output is closer to 3 kW than 8.
- 8 kW claimed (about 2.9 kW from its fuel burn)Heat output
- 0.18 to 0.36 L/hFuel burn
- None publishedType approval
- 1 yearWarranty
Check price at Amazon$83.90
Price checked October 30, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- One of the cheapest complete kits, with a 10 L tank and muffler
- Holds a set temperature from the LCD or remote
- Timer preheats the cab before you get in
Cons
- Sold as 8 kW, but its fuel burn supports about 2.9 kW
- No app control
- No published power draw or altitude rating
- No type approval for vehicle installs
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
| Heating | |
|---|---|
| Heat output (maker) | 8 kW claimed (about 2.9 kW from its fuel burn) |
| Fuel burn | 0.18 to 0.36 L/h |
| Fuel tank | 10 L |
| Build | Split (installed) |
| Power | |
| Supply | 12V |
| Controls and safety | |
| Thermostat | Yes |
| Automatic altitude | No |
| App | No |
| Timer | Yes |
| Remote | Yes |
| CO shutoff | No |
| Type approval | None published |
| Build | |
| Dimensions | 15.5 x 5.5 x 7.1 in |
| Weight | 15.4 lb |
| Warranty | 1 year |
Alternatives in this type
Webasto Air Top Evo 40
#16 in SplitFull review
For 24V trucks and buses that need a type-approved 4 kW heater with automatic altitude adjustment. The high price buys Webasto build quality and approval, not more heat.
Amazon $1,945.95$1,945.95
Jacgood 8kW Diesel Heater
#18 in SplitFull review
A very cheap complete split kit with thermostat mode and a remote, for DIY installs in RVs, garages and trucks. Specs and support are thin.
Amazon $76.99$76.99
Compare
Compare the VEVOR 8kW 12V Diesel Air Heater with any other diesel heater →
More from VEVOR: every VEVOR product ranked.