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WebAvailable for both water and steam systems, high efficiency residential oil boilers from Weil-McLain are rugged, reliable, and produce more heat per BTU than a standard gas … Web1 de mai. de 1999 · The high-efficiency appliance has wrung so much energy out of the flue gases that they are near their dew point by the time they are discharged into the chimney. When the gases hit the cool masonry, condensation forms on the inside of the chimney. This condensation is highly acidic and breaks down all masonry products, including brick, … current british royalty ranks in order
High Efficiency Boilers - AC Wholesalers
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