Hiking Hunter wrote:
I'm interested in this discussion and the ARP unit. I've seen their website and videos. I wish they had presented a better case for why I need one. I understand the principle, but there is very little objective evidence in their case.
In their video, the temperature rises only around 3 degrees before the unit kicks in... and that's over an 11 1/2 minute period... and a tilt of around 20 degrees (my estimate - the video doesn't specify). I wish they had convinced me by showing what happens to the temperature under the same conditions without their unit.
How high does the temperature have to get for damage to occur? How much tilt? Over what period of time? How critical is it? How much does the ARP unit affect life expectancy? What is the normal temperature swing of an unmodified boiler? How much does ambient temperature affect the temp of a boiler?
Interested but skeptical until I can see a better case.
The ARP is a GOOD addition to an RV refer. Your questions point to the lack of knowledge probably 99 percent of RV'ers have about RV absorbsion refers. The ARP device PREVENTS operation that will partially destroy a cooling unit. NOT just protect from a fire or leakage. What destroys a CU is the hundreds/thousands of times over the years a RV refer is left ON when it is slightly out of spec level or there is rear ventilation that is blocked or it lacks adequate ventilation. Those things slowly destroy the capability of the refer to operate to 100 percent efficiency. Then one day it does NOT cool well and the RV'er says what a piece of junk. Ambient temp does not really affect the boiler. The normal operating temp of the boiler is around 350 degrees. The Dometic and Norcold "safety" devices kick out at about 700 degrees. NOT low enough to prevent damage from unlevel conditions. Doug