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With Raypak’s FlexGas Hi Delta boilers and water heaters,
natural-propane gas switchover is fast and economical.
And there is no requirement for costly propane-air blenders or
air compressors.
Features
• 13 models; 300,000 – 2,342,000 BTUH
• Changeover takes less than one minute
• Changeover can be accomplished while firing: simply
turn the key!
• No mechanical components to remove or replace
• Patented dual-fuel system
• CSA-certified
• Factory-installed and tested system
Natural Gas
Natural
Gas Pipeline
Air
Air
Compressor
(Occasionally Required)
Propane- Air
Distribution System to Burners
Propane
Vapor
Propane- Air
Blender
Fuel
Delivery
Station
Propane Storage Tanks
C H
Liquid
3 8
Vapor
Natural Gas
Pipeline
Natural Gas
Distribution System to Burners
Fuel
Delivery
Station
Propane Storage Tanks
Vapor
CH
Liquid
3 8
Propane
Vapor
Hi Delta
™
FlexGas
™
Dual-Fuel Boilers and Water Heaters
Catalog No.: 1000.20A Effective: 07-10-08 Replaces: 01-10-06
Rising energy costs, regulations and utility incentives have
increased the demand for dual-fuel appliances. Many state
and local regulatory agencies require “dual-fuel” capability for
critical facilities, such as hospitals and schools, to ensure
emergency operation. Until now, the typical equipment solution
for domestic hot water supply and hydronic heating have been
gas/oil water heaters and boilers, or propane-air blenders, both
of which are costly to install and maintain.
Cost factors are also driving the demand for dual-fuel
appliances. Companies with rapid fuel-switchover capability
can take advantage of discounted rates being offered by gas
utilities throughout the United States for interruptible fuel
supplies. Then there’s the rising cost of fuel, making the ability
to switch fuels in response to pricing an attractive proposition.
CONVENTIONAL SYSTEM
HI DELTA FLEXGAS SYSTEM
FUEL SELECTOR SWITCH
Raypak Inc., 2151 Eastman Ave., Oxnard, CA 93030
(805) 278-5300 Fax (800) 872-9725
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