A pulse combustion
boiler is similar to a car engine in that both have continuous tiny air and gas
charges that ignite many times per second. The pulse provides the necessary combustion
pressure to direct-vent combustion products without fan assistance. Unlike conventional
power burners, pulse boilers are modulated by using a standard butterfly valve
in the gas line and a butterfly valve in the exhaust line. The result is a boiler
that offers 5:1 turndown for precise load matching capability.
efficiency is a function of return water temperature and heat-transfer effectiveness.
When operating in the condensing mode with cold water entering, pulse combustion
boilers are up to 95 percent efficient. That compares with other high-efficiency
boilers that range from 80 to 85 percent efficient. Conventional boiler efficiency
is 70 to 75 percent.
of a Pulse Boiler include:
- No expensive
chimney or stack is required. Vents through the roof or sidewall.
- No boiler
room makeup air is required. Combustion takes place in a sealed combustor.
- No moving
parts. Only a small assist fan needed for starting.
- A simple spark
plug is all that's required for ignition.
- Low NOx emissions.
- Quieter than
most conventional power burners.
- Stand-by losses
are nearly nonexistent due to air metering valve.
- Small footprint
and elimination of chimney, stack and makeup air requirements allows for individual
units in each building of multi-building complexes or in isolated areas of large
- Fits through
standard door openings.
- Simpler design
of pulse combustion system compared to a conventional power burner results in
the lowest maintenance requirements in the industry.
- No primary/secondary
loop required to maintain minimum return water temperature.
- No minimum
or maximum flow requirements.