1. Is it a copy of Truma?

No, it is our own technic for electronic programs, our brand is JP Heater.

2. Is the accessory 100% compatible with Truma?

Yes, except for electronic accessories, all installed parts could be used for Truma D4E/6E.

3. Must the 4pcs air outlets be open at the same time?

Yes, it must be open at the same time, but the air volume of the air outlet can be adjusted.

4. Does the kit include pipes?

Yes, 1 pc exhaust pipe(L=950mm, Dia: 50-55mm), 1 pc air intake pipe(L=1000mm, Dia: 76-80mm), 2 pcs ducting pipes(L=4000mm, Dia: 60mm).

5. How long does it take to heat 10L of water for a shower?

20-30 minutes.

6. Working height of the heater?

0-4000 meters, it supports high altitude working mode(within 5000 meters).

7. How to operate the high altitude mode?

Controlled by LCD switch; Heater adjusts by itself.

8. Can it work on 24v?

Yes, just need a voltage converter to change 24v to 12v.

9. What is the working voltage range?

It is 200v-250v.

10. Can it be controlled via a mobile app?

Yes, the Bluetooth App can operate the heater.