We have a winner! while it was a close match between these two uk boiler giants, the ideal logic+ is our favourite and wins by one point. We can ensure the job is completed promptly, professionally and with minimal disruption to other trades. Complete heating & gas ltd, 168 moor lane, chessington, surrey kt9 2ar. They don’t have to be the most sophisticated in the world, but ensure you get the most efficient and cost-effective.