If you payed the refrigeration guy $200 and spent $50 on insulation it would cut your refrigerator energy consumption by 50%, i bet.
If your fridge uses $120 of energy a year you would cut that in half. 60x4= 240 so it could pay for it self in 4 years then it will start making money , 60 bucks a year or what ever the particular fridge cost to run.
With my fridge i am at a 38% reduction now with relatively light but tightly applied insulation, especially the fridges compressor / condenser area as it is really warm down there, if not hot after a compressor run..
The heat absorbs into the fridge most from that point.
When i finish with the inside of the fridge (reducing interior sq feet) i know i will reduce its consumption even more.
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