Leaflet to prompt potential customers to call

I am looking for a leaflet that is a little different, easy to understand and excites people to read. We are providing a solution that could save home owners up to 50% on their energy bills. We don't use solar and is not part of any government scheme.
USP interest free credit, pays for itself in 1-3 years in some cases less than 1, no alterations to their property. We use voltage optimisation ( because energy companies send us more elctricty than we need) 8-20% saving off electricity. Nanotechnology reducing central heating cost 20-35% and protects agains freezing pipes and corrosion. We combine several other technologies that are fitted in less than a day to help save up to 50% of duel fuel energy bills and reduce carbon ommisions.

Pleas let me know what you proipose with this info