A low cost 5 kW split kit for DIY truck and RV installs, sold with almost no published specs or warranty.
Amazon $83.28The TJHSM 5kW Diesel Heater and the PRIJESSE PR-5 5kW Diesel Heater are evenly matched, rated 2.9 and 2.9. The PRIJESSE PR-5 5kW Diesel Heater costs $2.29 less ($80.99 vs $83.28).
A budget 5 kW split kit with tank and remote for cars, vans and small shops, with few published specs to back it up.
Amazon $80.99Prices were last checked October 30, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every split diesel heater; a clear win is highlighted. How we rank explains each one.
| Factor weight | TJHSM 5kW Diesel Heater | PRIJESSE PR-5 5kW Diesel Heater |
|---|---|---|
| Overall rating | 2.9/5 | 2.9/5 |
| Value 25% | 50 no credible heat rating (neutral score used) | 50 no credible heat rating (neutral score used) |
| Type approval 20% | 0 no type approval published | 0 no type approval published |
| Controls and safety 15% | 57 timer | 50 controls not stated (neutral score used) |
| Power draw 15% | 50 power draw not published (neutral score used) | 50 power draw not published (neutral score used) |
| Warranty 15% | 50 warranty not published (neutral score used) | 50 warranty not published (neutral score used) |
| Low setting 10% | 50 lowest setting not published (neutral score used) | 50 lowest setting not published (neutral score used) |
Specifications
| TJHSM 5kW Diesel Heater | PRIJESSE PR-5 5kW Diesel Heater | |
|---|---|---|
| Heating | ||
| Heat output (maker) | 5 kW | 5 kW |
| Fuel tank | - | 10 L |
| Build | Split (installed) | Split (installed) |
| Power | ||
| Supply | 12V | 12V |
| Controls and safety | ||
| Timer | Yes | - |
| Remote | Yes | Yes |
| Type approval | None published | None published |
| Build | ||
| Dimensions | - | 15.3 x 5.7 x 5.7 in |
