As long as the shower has a hot and cold inlet or supply it'll be fine.OK having the old trusty boiler replaced this coming wednesday.
The old boiler heated water to an upstairs tank, so this will be being removed too.
Now heres the question for anyone in the know.
The upstairs shower basically worked with pressure from the water tank in the loft. Will this continue to work with a combi, which i believe is mains fed, or am I going to have to get a totally new shower system fitted? Its an overbath shower with a mixer tatap.