Hamilton Engineering's Companion
Hamilton Engineering's Companion™ features great performance in a small package.  Combining a high efficiency heater with Hamilton's patented CWIS™ storage tank, Companion™ delivers a steady flow of hot water when you need it most.

What separates Companion™ from other tank type heaters is the technology used in its tank.  The CWIS™ system funnels the coldest incoming water into the heat exchanger, while keeping the hot water near the top, where it will be siphoned off into your building supply.  The insulated tank keeps heat loss to a minimum, decreasing the number of times the heater needs to fire, saving you both fuel cost and wear and tear.

Companion™ is available utilizing models ranging from 129,000 BTU/hr to 630,000 BTU/hr, with tanks ranging from 80 to 160 gallons. Please note that not all tanks can accommodate all model sizes.