On 20 December 1993 Torun, as one of four Polish cities, was selected to the second stage of Healthy Cities Project by the World Health Organisation. The project was prepared by WHO in order to introduce "Health for everyone" rule and rules of operation for health promotion described in Ottawa Card. Healthy City should provide its inhabitants with:

• Clean, safe, high quality of natural environment
• Significant participation in making of decisions on human health and good self-feeling
• Ability to cover the essential needs (health food and water, accommodation, work, income high enough for living)
• Constant availability of heath performances at appropriate level
• Improvement of physical and mental condition and support of calm life idea
• In relation with the above the local authorities aim at minimisation of air emissions.

The aim is to reduce the heating demand of the building to a level, which meets requirements of the Polish building code of today. Furthermore, a significant reduction of CO2, SOx and NOx emissions in the local area is expected. This project will follow an integrated design approach during the project design and planning process. The hot water installation operated presently is character- ised by too large pipelines diameter, significant corrosion and limestone deposits. It makes the hot water flow much more difficult, which results in heat losses. The condition of the installation is a result of over 40 years of operation. The heating system is going to be exchanged as well as the type of heat receivers and installations. Automatic regulation and individual control of heat supply to each individual heater will be introduced. The new technological solutions thereby introduce a lot of beneficial changes that should result in high level of heating equipment efficiency. Good indoor climatic conditions and energy saving will be obtained due to introduction of thermostatic valves. Dismounting of the open heating system and implementation of closed system shall enable to avoid non-effective central air-escape. Individual air-escape valves at each riser will provide high efficiency of the heating system. The possibility of selective repair of heaters is introduced due to individual valves for each of heaters. Innovation for the outdated building is a complete insulation of the building envelope in combination with exchange of windows into an energy-saving type. It will result in full utilisation of heat for space heating. Furthermore, the heating demand will be reduced to a level, which meets the requirements in the building code for new built buildings of today. The heat capacity is expected to be reduced with about 20% and heat demand with about 30%, through the application of energy efficiency measures. The combination of the thermally efficient facade and the new energy efficient heating system will create a synergy effect, by which the large energy savings are achieved. Furthermore, the well-being and indoor conditions for the patients and the staff will be improved. The design also has large impact on the environment, since the emission of CO2, SOx and NOx will be significantly reduced, due to reduced energy use. Furthermore, an improved indoor climate will be obtained and thereby a faster recovery for the patients, which will enable the hospital to treat more patients without increased costs. The staff will also benefit of the improved indoor climate getting improved working conditions. The renovation of the old part of the hospital will reduce the heating energy use with 30%, while the new built part of the hospital will use only 25% compared to a standard new hospital. Copyright 2005 All rights reserved. Supported by the European Commission.