Blender and heat pump: what they have in common

1. Step 1. Blender — is a kind of — Household appliance. A household appliance.
2. Step 2. Household appliance — includes — Air conditioner. A household appliance.
3. Step 3. Air conditioner — uses — Heat pump. An air conditioner is a heat pump that carries heat out of the room.

Open Evothings