high efficiency furnace vent problems. If your Colorado Springs area home is heated by a high efficiency gas furnace, sooner or later you are likely to experience a common problem that is associated with these types of furnaces that are not common with standard efficiency furnaces.
Advanced Filter. Web Service. OECD Statistics. Definition: Direct expenditure by disease relates to the economic burden incurred by the health system to diagnose and treat health problems classified according to the International Classification of Diseases 9 (ICD-9).
R&D expenditures do not include expenditures for any of the following: 1  Quality control testing. 2  Advertising or promotions. 3  Consumer surveys.  Efficiency 1  surveys. Management studies.  Research in connection with literary, historical, or similar 1  projects. The acquisition of another's patent, model, production, or process.