Mary Fisher wrote:

What struck me in particular was this paragraph:

"But the study from the Royal Institute of Chartered Surveyors shows
that some of the measures, such as solar panels to heat water, would
cost £5,000 to install but reduce average bills by only £24 a year and
would take about 208 years to pay back."

Ours cost us £2000 two years ago. Our gas bills (the only other
water heating we had) were reduced by almost £300 in the first year.

So you were paying OVER £300 a year for gas to provide hot water only ? That's a
LOT of hot water.

Graham