I'm restoring a 1930s semi, which has fully functional open fireplaces as well as a 25 year old gas central heating system. With gas prices on the rise I'd love to ditch the c.h. system. I already use my open fires successfully for heating and just use the gas boiler for hot water. Is it feasible (and more efficient) to use an individual electric 'on demand' hot water heater for my kitchen sink and another upstairs for the bath? I'm thinking of the type that can be tucked away out of sight rather than those that hang on the wall with a spout. Ultimately I'd like to ditch the gas boiler all together. Is this scheme feasible?
I'd value any opinions.