If you have the appropriate pressures coming in you will enjoy flow rates of 20 to 30 litres a minute. This means multi outlet use isn’t a problem as showers tend to operate at about 9 litres per minute. It also means you can fill a bath in just a few minutes. Gas combi boilers typically offer flow rates of only 9 to 12 litres a minute.
In addition, you will enjoy temperatures around 50°C where a combi can be as low as 40°C.
key takeaways
Reviewed by Geoff Egginton
Managing Director, Advance Appliances. 20+ Years experience