Burnham Series 2

The Burnham Series 2 is our most-installed cast iron hot water boiler for budget-conscious Long Island homeowners. At 85% AFUE with lifetime cast iron construction, it delivers reliable heat without the complexity or cost of condensing technology.

Why the Series 2 Remains a Top Seller

The Series 2 uses proven cast iron section technology that has heated American homes since before air conditioning existed. These boilers are simple, reliable, and repairable. When something wears out—usually after 25-35 years—individual components can be replaced rather than scrapping the entire unit.

Best Applications for Nassau County

The Series 2 excels in straightforward boiler replacements where efficiency isn't the primary concern. Popular in rental properties, homes being prepared for sale, or situations where budget constraints are real. The simple controls have fewer failure points than computerized condensing units.

Cost vs. Efficiency Trade-off

At 85% AFUE, the Series 2 costs 10-12% more to operate annually than 95% AFUE condensing alternatives. For a home spending $2,000 on heating, that's roughly $200-$240 per year. Whether the $2,000-$4,000 upfront savings justifies this depends on how long you'll own the home.

Installation Advantages

The Series 2 vents into standard masonry chimneys and doesn't require condensate neutralizers. Installation is typically faster and less expensive than condensing units. For homes with functional chimneys and tight budgets, the Series 2 makes economic sense.

Hot water boilers like the Series 2 are sized from a room-by-room heat-loss calculation. We never match the old boiler's size — oversized units short-cycle, waste fuel and wear out years early.

Every Burnham installation starts with a free in-home assessment covering the heat-loss calculation, venting and chimney condition, gas or oil supply sizing, and permit requirements for your town. Learn more about our boiler installation process, or see current rebate and incentive programs that may apply.