Hi,
in preparation of a big trip in my 2004 Great West Vans Class B, knowing I'll be hitting much hotter temps, than I would normally, I did the following:
- Purchased an ARB 35 qrt 12V compressor fridge/freezer - expensive but very impressive
- Ran a new 12V Line and plug for the ARB direct from the house batteries
- Installed a flexible solar panel and charge controller
Yes, I have a 3-way Dometic fridge but have had a tough time maintaining internal temps below 41 F a couple of times, resulting in having to throw out food. Since I will be going to both the Grand Canyon and Death Valley when day-time temps will average 100 F, I decided the ARB is a better choice.
Now, I do have a 100 W Renogy portable solar kit (it works well) but wanted to be able to continuously charge the batteries while away on hikes or in parking lots. Just installed the additional panel on the roof today and finalized the charge controller install. It works great and, now, I have the option of adding the Renogy for a total of 200 W. All purchased off of Amazon.
I have dual 110 AH AGM batteries, so 100 W does the job of re-charging during the day time - 200 W is a bonus. All the interior light bulbs were replaced with LEDs so essentially all I need to typically run are the fantastic fan, lights, 12V TV, furnace, etc. Not a huge drain on the AGMs.
Figuring out where to run the new 12V cables was a challenge but managed to do that and include separate fuses in-line that are relatively easy to get to if one blows.
One challenge that proved to be easier than I thought was the high-top is actually two separate fiberglass shells (exterior and ceiling with insulation in between) ... I thought the gap might be 3 - 4 inches but was only 1 inch so drilling through it was not a problem. Was able to run the cabling such that it is all hidden out of sight. Holes sealed with Dicor.
Cheers,
Steve