Hot water boilers of the Blowtherm PACK-P AR 3S series are distinguished by their high efficiency. The special design of the units makes it possible to achieve an efficiency value of more than 95%. Deformation and static stress, which may arise during heating, are eliminated by the special design of the "floating" firebox. The condensate drain is installed in the smoke chamber.
| Power | 203 kWt |
| Hot water power | 174.600 kcal / h |
| Efficiency | 95% |
| Burner (diesel) | MKAL 20.22 TL |
| Material | steel |
| Burner (gas) | GVAL 20CE TL |
| Suitable | for a cottage, for a building / hotel, for public / industrial premises, |