How many litre of surya's water heater do i need for a family of 4? For a family consisting of 3-4 members, 40L storage water heater is idle. Our water heaters are designed for easy DIY maintenance, minimizing downtime and ensuring that your comfort is never compromised. Spend more time enjoying and less time worrying. Wood fire water heater manufacturer in Mandya Wood fire water heater manufacturer in Mysuru (Mysore) Wood fire water heater manufacturer in Raichur Wood fire water heater manufacturer in Ramanagara Wood fire water heater manufacturer in Shivamogga (Shimoga) Wood fire water heater manufacturer in Tumakuru (Tumkur) Wood fire water heater manufacturer in Udupi Wood fire water heater manufacturer in Uttara Kannada Wood fire water heater manufacturer in Vijayapura (Bijapur) Wood fire water heater manufacturer in Yadgi