Further Improvements to ERGOMAX^® Heat Exchangers 

All ERGOMAX models E23, E44 and E45 are now manufactured with two extra connections to the boiler water in tank (for a total of four, see Dip Tube Specifications below). Domestic water, as always, is heated in the copper heat exchanger immersed in the boiler water in the tank, however, the two new tank connections allow the same boiler water in the tank to also be used for space heating (baseboard/radiators and radiant), to buffer boilers (eliminating short cycling) and save fuel.

                                                Suggested Piping Schematic (Primarily for residential installations)

Buffer Tanks

We are now manufacturing two buffer tanks, models BT26 & BT 48 (see the suggested piping diagram and specifications below). In those instances where an ERGOMAX heat exchanger is not used, but the boiler short cycles, a buffer tank can be used to eliminate the short cycling and save fuel. All space heating would then be heated by the boiler water in the buffer tank and not directly by the boiler. Buffer tank installation below shows the suggested piping also see Dip Tube Specifications below. A well is provided for an aquastat.

Suggested Buffer Tank Piping  

DIP TUBE

Specifications for Space Heating Return

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Note: Dip Tube & Double Threaded Bushing are NOT SUPPLIED with ERGOMAX Heat Exchangers and Buffer Tanks

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ERGOMAX Improvements & Buffer Tanks