Lead generation for biomass installation / appointment setting

Universal Energy is a renewable energy installation company based in north west London. We are a £3m turnover company and looking to expand further into the biomass boiler market. Our target audience is businesses running on heating oil like farms / poultry / equestrian centres, nurseries etc. We cover London and home counties.
I am looking for someone to generate leads and set appointments for my sales team of 4 people. We would require 8 appointments a week.