Hydronic boilers
Fulton’s Pulse combustion condensing hydronic boilers feature the lowest electric consumption in the industry. The Pulse combustion process is naturally aspirated and does not require a blower motor for operation. An assist fan is used for pre- and post-purge only and turns off once combustion has been established. Pulse boilers require electricity only for purge cycles, powering fuel valves, controls and other safety features. 
Models available range from 300,000 Btu/hr. to 2 million Btu/hr. input.
Fulton. www.fulton.com
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