Isuzu npr 4wd

[luthj]

It varies a lot for fridge energy usage. In hot weather some less well insulated small fridges will use about 30W average over a day.

As for ventilation, a 120mm computer fan works (choose one with a ball bearing, and put it where it can be cleaned periodically). Make sure you have a make-up air hole on the opposite side of the compartment.

Many fridges with secop/danfoss compressors have enough margin on their fan control outputs to slave this second compartment fan without issue. Thus the fan will only run when the compressor is.

 

[gator70]

Mine is a mystery . I guess I get a 12v fan and look to see how I can add ventilation. There are two undersized vents. So some airflow would force air out.

 

[gator70]

Calculating weight and front - rear distribution, it seems I can't install a aux freshwater tank at the rear. Water is heavy.

Now I think along frame mounted saddleback tank(s) close to the cab or underneath it.

 

[SkiFreak]

That's an unusual looking Isuzu...

 

[Peter_n_Margaret]

A few km of corrugations and I reckon that tank will be left behind on the track somewhere.
Cheers,
Peter
OKA196 motorhome

 

[gator70]

Another cab over Isuzu bed

 

[gator70]

Evaluating the dinette choice.

Rear dinette

(seats six - folds down to a bed)

vs

Side dinette

(seats two - squeeze in four - advantage larger open floor space)

 

[gator70]

Dometic RTX 2000 12v A/C

Far superior to the rest

Start temp 100 F, maintained temp 75 F

With a 200 amp hr battery - 287 minutes

Avg draw 41 amps - much less after reaching the 75 F level.