Heating plants, small primary: Annual efficiency (NT VVS 107

Size: 152.03 KB
  • Report #: NT VVS 107
  • Approved: November 1995
  • Hits: 0


This Nordtest method shows a test and calculation model for the assessment and comparison of annual efficiencies of small primary heating plants, especially non-condensing oil or gas fired boilers for central heating plants in one or two-family houses.


Nordtest is a trademark of Nordic cooperation in conformity assessment. The emphasis of Nordtest is to develop, promote and innovate Nordic test methods and pre-normative activity. Nordtest endeavours to remove technical barriers to trade and promotes the concept: “Approved once, accepted everywhere”.