Cast-iron boiler

relprodnewsletter1609hvac01pGV90+ high-efficiency cast-iron boiler has streamlined controls with reported simple setup, low maintenance, and durable design. The unit has a cast-iron primary heat exchanger made from approximately 70% recycled materials. A corrosion-resistant stainless-steel condensing secondary heat exchanger recoups heat energy from exhaust to further increase system efficiency. A built-in dual circulator system accepts return water temperatures as low as 60 F.

Weil-McLain, Burr Ridge, IL
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