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New Vitodens 200 Specs Online now:

The new Vitodens 200 BH2A - Have a look: http://www.viessmann.ca/en/Residential/Products/gas/Vitodens_200_B2HA.html
Class 'A' Gas Fitter - Certified Hydronic Systems Designer - Journeyman Plumber

Comments

  • SpeyFitterSpeyFitter Posts: 420
    Extended modulation range

    Did you guys notice the increased range of the Lambda Pro combustion numbers. They now have a lower and higher range with oxygen percentages (down to 3.8% from 4.4% and up to 7.3% from 6.9% oxygen) (and corresponding increased/decreased CO2), probably to accomodate the higher modulation ranges offered. Also, Viessmann has a 6.75 to 1 modulation range on the 19,000 to 125,000 BTUH. I guess manufacturers are pushing the limits now a days and the old days of 5 to 1 are gone perhaps? Are the certification agencies bending the rules or was the numbers changed?
    Class 'A' Gas Fitter - Certified Hydronic Systems Designer - Journeyman Plumber
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