I hired Ron to convert an old oil-based heating system to a tankless gas-based hot water/heating system. I just can say the job was done to perfection !!! He did the job in 2-1/2 days, including the removal of the old boiler, water tank and oil tanks. The piping routes were very well laid-out to minimize changes in the old system. He obtained all necessary permits from City Hall, got clearance from the city inspector, gave me a rebate form for the heater had a very reasonable price for the job.