The rapidly rising price of energy - oil, gas and electricity, is dramatically changing the payback on investments in energy efficient heating systems and insulation.  Instead of taking several years to recover the initial investment, in some case this has been slashed. The basic equation is simple- if heating costs double, then payback time is halved. This doesn't work out exactly in the real world, since the price of products and installations also increases. But, unless you just want to pay whatever the suppliers want, you need to take action to cut your energy use and save yourself some money - very quickly.

Additionally, many improvements add to the value of your home anyway. So, in some cases you get the benefit of the lower heating costs without even paying for it! Now that's Smart Energy Use!!!