There is no single boiler type that is automatically best for every Glasgow tenement. Many tenement flats suit a modern combi because it saves cylinder space, but the correct choice depends on the flat's water performance, heating demand, number of bathrooms, existing system, flue options and available space.
The age of the property also matters. Older pipework and radiators may need inspection before a new boiler is connected. The installer should also confirm a compliant flue route, condensate discharge and suitable gas supply. In some tenement layouts, where several hot-water outlets need strong simultaneous performance, a system boiler and cylinder may be worth considering if there is room.
The right approach is to survey the flat first, then size and specify the boiler around the actual property. Doherty's Glasgow boiler page is relevant for tenement owners because it covers combi, system and regular boiler options rather than pushing one configuration for every home.
