- 13 Aug 2008
- Reaction score
We have a brand new Grants Outdoor vortex combi boiler which gives intermittent hot water. If the central heating is on there is a constant supply of hot water. If the heating is off you have a 25% chance of getting hot water. The boiler sometimes fires up after 2-5 minutes and starts supplying hot water. Really driving us crazy as more often than not when the heating engineer comes out it gives hot water.