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SPECIFICATIONS
NATURAL GAS PROPANE
Manifold pressure 3.5” WC 10.0” WC
Minimum inlet gas supply pressure 4.5” WC 11 0” WC
Maximum inlet gas supply pressure 7.0” WC 14.0” WC
BTU input rating (high) 40,000 BTUH 40,000 BTUH
BTU output rating (high)* 34,000 BTUH 34,000 BTUH
BTU input rating (low) 26,000 BTUH 27,000 BTUH
BTU output rating (low)* 22,100 BTUH 23,000 BTUH
Steady State Efficiency* 85% 85%
*Maximum vent, blower off
LISTINGS
The Quadra-Fire DV-40 Step is listed to ANSI Z21.88/CSA 2.331998-CAN/CGA 2.17-M91 UL307b by
Omni-Test Laboratories, Inc., Beaverton, Oregon.
WARNING
Improper installation, adjustment, alteration, service or maintenance can cause injury or property
damage. Refer to this manual for correct installation and operational procedures. For assistance
or additional information consult a qualified installer, service agency, or the gas supplier.
SAFETY NOTICES, CONT.
WARNING
Do not operate appliance with the glass front removed, cracked or broken. Replacement of the
glass should be done by a licensed or qualified service person.