Imagine when you wake up on a freezing cold winter’s day to find your boiler making strange noises, no hot water in the taps and the heating on the blink not an ideal situation when there’s frost on the ground. One drawback, though, is that there's a small time lag between turning on the tap and getting hot water, and the flow rate is limited by how quickly the boiler is able to heat up the water. Boiler problems? talk to frank! The information in this section is sourced.