In certain embodiments, an apparatus includes a burner. The apparatus can also include an
intake valve that includes an input for receiving fuel from either a first fuel source at a first …

3. A 38. SE III 7,458,386 B2* 12/2008 Zhang........................ 137/15.18 4301.825. A 11/1981
Son 7.487, 888 B1 2/2009 Pierre, Jr. 4.340, 362 A 7, 1982 R al 7,490,869 B2 2/2009 …

US8241034B2 - Fuel selection valve assemblies - Google Patents US8241034B2 - Fuel
selection valve assemblies - Google Patents Fuel selection valve assemblies Download PDF Info …

US8757139B2 - Dual fuel heating system and air shutter - Google Patents US8757139B2 -
Dual fuel heating system and air shutter - Google Patents Dual fuel heating system and air …

In certain embodiments, a valve assembly includes a housing. The housing can define a first
fuel intake, a first fuel output, and a second fuel output. The assembly can include a valve …

US8297968B2 - Pilot assemblies for heating devices - Google Patents US8297968B2 - Pilot
assemblies for heating devices - Google Patents Pilot assemblies for heating devices …

A dual fuel heating source can have a fuel selector valve for selecting between a first fuel
and a second fuel different from the first. The dual fuel heating source may selectively have a …

A heater can be configured to operate with either a first fuel at a first pressure or a second
fuel at a second pressure and can include a fluid flow controller. In some embodiments, the …

A dual fuel heater can couple with one of two fuel sources operating at different pressures.
The dual fuel heater can have a first fuel line, a second fuel line, a fluid flow controller, and a …

(57) ABSTRACT A heat engine can have a fuel selector valve for selecting between a first
fuel and a second fuel. Making the selection with the fuel selector valve can also determine …