The large scale implementation of high-albedo building materials and urban surfaces and the reforestation of low vegetation urban areas are being encouraged as energy-saving measures. These strategies will result in modification of the physical properties of millions of buildings (e.g roof reflectance) and th ei r microclimates (e.g., shading, wind, and evapotranspiration effects of trees). This paper is about the atmospheric impacts of regional scale changes in building properties, paved-surface characteristics, and their microclimates.

Remodeling is the perfect time to improve daylighting, direct gain heating, and shading with passive solar techniques. It can also provide the best opportunity to add solar water heating or even photovoltaics to a home.

The new buildings of Kaneyama Town Junior High School demonstrate that a well-planned and adequately designed passive solar system can work effectively even in a snowy and cold area. The OM solar system of an air heating type applied here, which is characterised by heat collection through roofs, and underfloor heating and heat storage, provides the pupils with a comfortable thermal environment in winter.

In this paper, theoretic review of a heat pump use and operation is given. Further, the possibilities of a heat pump use in heating and air-conditioning is analysed, especially considering the tourist and catering facilities. The economic and environment protecting effects of a heat pump use as an energy source (conditionally speaking) in the air-conditioning process is pointed out. It is shown that these effect make a heat pump use justifiably attractive.