Nationwide Boiler's exclusive EconoStak is an optional feature available with most Nationwide Boiler rentals. It is also available for sale as a
separate item that can be fitted to most package boilers by customers.
EconoStak consists of an economizer and all of the associated piping and structural supports required for efficient and safe operation. It is
a fabricated assembly of finned tubing that uses hot stack gases to heat the boiler feedwater. This saves a considerable amount of fuel that,
in most cases, significantly reduces operating costs. EconoStak usually reduces stack emissions and thermal pollution, as well as providing
fuel cost savings.