Residential refrigerator vs rv fridges

[waynewaller]

When I'm actually traveling (driving) the inverter that runs the refrigerator gets its 12 volts from the vehicle alternator, so there is no strain on the coach batteries.

Got a question: when plugged into shore power....will your house batteries be charged so the refr can operate without running down your house batteries
I have a res refr, but cannot keep the batteries up while at home, I have to run the engine or genny to keep the batteries up

 

["EZ"]

Got a question: when plugged into shore power....will your house batteries be charged so the refr can operate without running down your house batteries
I have a res refr, but cannot keep the batteries up while at home, I have to run the engine or genny to keep the batteries up

Then something is wrong or you don't have something turned on or hooked up properly. When I'm home I plug my RV electrical cord into a plug in my garage. It's only a 20 amp 120v plug. I'm not trying to run any A/C units, just charge the house batteries and run the 'fridge and lights. The house batteries charge automatically. I don't have to do anything. I believe all that is handled by the inverter/charger. Yours may not be working properly. I'd have it checked.

 

[Kevin D Pem]

Got a question: when plugged into shore power....will your house batteries be charged so the refr can operate without running down your house batteries
I have a res refr, but cannot keep the batteries up while at home, I have to run the engine or genny to keep the batteries up

So what you are saying is the transfer switch is not switching over to shore power.

 

[Kevin D Pem]

RV refrigerators vs. residential refrigerators might confuse you, but their functionality and purposes differ significantly. Although RV fridges cost a lot of money, they are more sturdy and have multiple power options. By contrast, a residential fridge has only one power source and needs an inverter to work on 12 V power; it is therefore more efficient at keeping food cold.

This didn't give a good answer. An absorption fridge has a very low COP. (RV fridge)!
Compressor cycle has a high COP (residential fridge)!

High COP more efficient.