What did Vaillant do for the Romans?
An imaginative solution devised by Vaillant to replace a 30-year-old atmospheric gas boiler in the City of Lincoln Guildhall, a listed building dating back to Roman times, avoided damage to the outside fabric and enabled the existing heating system to be used. The old boiler in the basement was deemed inefficient and replaced by a wall-hung 65 kW ecoTEC boiler.
The old boiler was in the basement with very little ventilation, a problem that was overcome without damaging the outside fabric by installing the new boiler at the top of the building with a shot vertical concentric flue at the rear of the building where it could not be seen, as pictured.
Pipework was routed behind oak panelling on the stairs to feed a specially designed low-loss Vaillant heat exchanger in the space occupied by the previous boiler. This heat exchanger was connected to the old heating system, with a new quality dirt separator to protect the heat exchanger. The plant room no longer requires ventilation.
A Vaillant weather compensator and an air separator have been installed. The air separator removes air from the system to prevent its efficiency being reduced.
Graeme Twell of the City of Lincoln Council, comments, ‘Vaillant’s design ensured that we did not have to conduct extensive renovation work on the basement. The council was very impressed with the manner that Vaillant were able to meet our efficiency needs, and the building has definitely been warmer since the ecoTEC was fitted.’