What is Flow Rate or l/m?
Tankless Gas Water Heaters are rated in litres per minute (l/m). What this means is that the GWH is able to increase the ambient cold water temperature entering the unit by 25 degrees at its rated maximum l/m. Therefore, we can see that regional climate differences can have a marked effect on the GWH ability to perform during each season
For example, in summer, ambient cold water temperature ranges from 20-23 degrees. The Paloma 26 l/min can provide approximately 50 degree hot water, at maximum 26 l/m. In winter, ambient cold water temperature ranges from 5-10 degrees therefore, the Paloma 26 l/min gas geyser can deliver 50 degree water at approx. 16 l/min. To equate this in practical terms, the average shower requires a flow-rate of 10l/m (hot and cold mixed). This suggests that 1 x Paloma 26 l/m unit can comfortably run 2-3 showers simultaneously during summer months and 1-2 showers simultaneously in winter.
Water Flow Calculation