Intellihot products at The House Supplier include the i250 iSeries Gen II, a wall-hung gas tankless water heater for residential and light commercial use. Tankless units heat water on demand instead of holding a storage tank at temperature.
To size a tankless heater, estimate peak flow in gallons per minute and the temperature rise from incoming water to the set point. Confirm gas type and supply pipe size, the venting method the unit requires, and the electrical connection. Check the manufacturer's approved vent materials and clearances, and plan for isolation valves for descaling.
