OSI Comfort Specialists provides the very best in home comfort service. Our customers have the most comfortable homes and the lowest fuel consumption because we provide the most modern equipment and the most thorough maintenance services. We integrate solar and geothermal energy with oil and natural gas through the use of advanced hybrid equipment and control systems. Consumption of fuel is minimized, but you sacrifice nothing in comfort or convenience. Our 70-plus years of experience has taught us to anticipate your every need. We maintain your equipment, simplify your payments, deliver your fuel automatically, and shield you from unchecked costs with our price protection and service plans. Additional phones - (516) 764-2300, (516) 374-1133.