When the temperature gets hot out, your Rv refrigerator can struggle to keep it's temperature cool sufficient to avoid food spoilage and to keep your beer at the excellent drinking chilliness. There are several factors that contribute to refrigerator efficiency, such as the sun beating down on the refrigerator side of your Rv, or a dirty gas burner creating a poor heating flame. Even the levelness of your Rv can cause inefficiency over time. One of the simplest and most sufficient mods that can be made is to enhance the ventilation at the back of the refrigerator by using a fan to direct air up and out of the refrigerator vent column.
An Rv refrigerator is not like a residential unit. It uses a heat absorption ideas rather than an galvanic compressor, condenser, and evaporator, as a residential refrigerator does. Heat absorption requires removing the heat from the absorption unit via chemicals and air circulation. This is done by convection or draft. A narrow space behind the refrigerator allows cooler air to be drawn in to the space at the bottom of the unit. The air rises and passes over the heat absorption unit fins, and out of the vent on the roof above the unit.
Refrigerator Side By Side
Some refrigerator installations easily prevent this convection performance to work. In a typical Rv installation, a dead air space can exist directly above the refrigerator. This space can trap warm air and drastically sacrifice the draft effect. This discount in draft is why you should do the refrigerator cooling fan mod. While not a cure all for a poor refrigerator installation, a fan can dramatically enhance refrigerator cooling performance.
There are several fan types that can be used for this mod. It is recommended that you use one of the permanent-mount types as the battery-powered kind can need frequent transfer of the batteries, especially if you forget to turn the fan off when not using it. Some use computer fans that are 3 to 4″ in diameter. These need limited power and move a surprising whole of air.
A thermostatically-controlled fan however, is the best way to setup a refrigerator ventilation fan. These are enduringly mounted and have a thermostat that provides power to the fan when the ambient air temperature reaches some set point. Different temperature set points are available with the most common switching at 80°F. A switch can also be wired in to the fan's power furnish so that you have control over when the fan is on.
There is some deliberate upon as to where the most sufficient place to setup the vent fan. Camco, for example, has a solar powered fan and refrigerator roof vent combination. This puts the fan at the top of the vent stack, pulling air through the lower vent and up through the roof vent. Still others mount the fan at the bottom of the vent stack, right at the lower vent. This position pushes air up through the stack. Both have been found to work equally as well so the choice is your on which way to go. Either way, using a vent fan will ensure a cold beer on a hot day.
Tip: Try to park your Rv where the refrigerator side of the Rv will be in the shade as much as possible. This will help sacrifice temperatures inside the refrigerator vent column dramatically. If shade is unavailable and your refrigerator is on the curb side, use the awning to furnish shade.
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