Does the size of whole house water conditioner depend on how many appliances are there in the house?

No, the correct size of water conditioner is selected based on the water flowing into the property and is not limited by the number of outlets in the house. Check the flow rate of the incoming water and match this to the relevant whole house water conditioner:

• 3-25 L/min – Catalytic Water Conditioner Whole House 300x28mm 1/2″ BSP-T
• 24-54 L/min – Catalytic Water Conditioner Whole House 330x35mm 3/4″ BSP-T
• 45-90 L/min – Catalytic Water Conditioner Whole House 360x42mm 1″ BSP-T

Single Point Water Conditioner can be used only on a single outlet.