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  2. Vaillant Group - Wikipedia

    en.wikipedia.org/wiki/Vaillant_Group

    The history of the Vaillant Group dates back to 1874, when Johann Vaillant set up a master fitter's business. In 1894 Johann Vaillant patented a new "closed-system" gas-fired bathroom boiler. [3] This was the first device that made it possible to heat water hygienically, without contaminating it with combustion gases.

  3. Equivalent annual cost - Wikipedia

    en.wikipedia.org/wiki/Equivalent_annual_cost

    Assessing whether increased maintenance costs will economically change the useful life of an asset. [ 10 ] Calculating how much should be invested in an asset in order to achieve a desired result (i.e., purchasing a storage tank with a 20-year life, as opposed to one with a 5-year life, in order to achieve a similar EAC).

  4. What are the most common home maintenance costs? - AOL

    www.aol.com/finance/most-common-home-maintenance...

    In Q3 of 2024, the average annual cost to maintain a single family home rose to an all-time high of $10,433, ... HomeGuide estimates that maintenance costs $80 to $150 a month. Additional pool ...

  5. American Radiator Company - Wikipedia

    en.wikipedia.org/wiki/American_Radiator_Company

    In 1989 the Metal Box company demergered, and MB group formed; Caradon was acquired by MB group becoming MB Caradon in 1989 and the Hull boiler factory became Caradon Ideal in 1993. [24] In the 2010s the Ideal Boilers' foundry was closed with the loss of 57 jobs and outsource casting to third parties. [28] [29]

  6. Cost estimates come back for boiler, systems ... - AOL

    www.aol.com/cost-estimates-come-back-boiler...

    Nov. 21—The replacement of mechanical systems at three schools in the district is estimated to cost about $3.96 million, engineers with ISG Inc. presented to the Albert Lea school board Monday.

  7. Annual fuel utilization efficiency - Wikipedia

    en.wikipedia.org/wiki/Annual_fuel_utilization...

    The annual fuel utilization efficiency (AFUE; pronounced 'A'-'Few' or 'A'-'F'-'U'-'E') is a thermal efficiency measure of space-heating furnaces and boilers.The AFUE differs from the true 'thermal efficiency' in that it is not a steady-state, peak measure of conversion efficiency, but instead attempts to represent the actual, season-long, average efficiency of that piece of equipment ...

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