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This is a picture I thought I’d share showing a twin high efficiency boiler installation we just finished in a Brooklyn multi-family residence. A large oil-guzzling boiler was removed and these two flame-modulating natural gas boilers were put in its place.
Unlike standard fixed-flame units, these boilers are rated at 96% efficiency and each is capable of supplying 399,000 BTUs. They are manufactured by an American company called Triangle Tube and are among the most highly-regarded boilers of their type. Even when temperatures got into the single digits recently, the boilers never had to work more than to produce just 145-degree water. The old boiler used to make 190-plus-degree water which required a much higher rate of fuel usage.
In the center of the system is a hydraulic separator which allows for more effective distribution of the heated water and removes air and sediment, further increasing efficiency.

I split the system into smaller parts to use more efficient pumps of lower wattage and minimize the risk of system-wide loss of heat. The boilers are wired to a control that rotates them in and out of service as needed and temperature sensors in the building average the heat requirements of the 2nd and 4th of 5 floors.

These people wanted efficiency and they followed through to get it.

Yes, I’m bragging, but this is…

…Good stuff!