The kitchen fridge, also known as a refrigerator, does not have a significant impact on cooling down the entire house. While refrigerators are designed to remove heat from their interiors to keep the contents cool, they do not actively cool the surrounding environment.
Refrigerators work by using a refrigeration cycle that involves compressing and expanding a refrigerant gas. This process removes heat from the interior of the fridge and transfers it to the external environment (usually at the back or bottom of the fridge) through cooling coils. The heat released by the fridge is generally minimal and won't make a noticeable difference in cooling the house.
The primary purpose of a refrigerator is to maintain a cool temperature inside the fridge to preserve food. It is not an effective or efficient way to cool down a large space like an entire house. If you want to cool your house, you'll need to use proper air conditioning systems, fans, or other cooling appliances designed for that purpose.