Full Product Manual

3
for proper gas and input as stated on the name plate.
company.
c. Do not attempt to operate heater with any other gas than that
indicated on the heater name plate.
instructions and data plates.
For additional information, contact;
Number Related Subject
used.
Table 1. BTU Ratings and Supply Pressures
MODEL BTU/HR. RATING GAS SUPPLY PRESSURE (W.C.) ORIFICE
NO. GAS MIN. MAX. MANIFOLD SIZE
NATURAL PROPANE NAT. L.P. NAT. L.P. NAT. L.P. NAT. L.P.
MH/HS40NG 40,000 — 6.8” W.C. — 7” W.C. — 5.8” — 37 —
MH/HS40LP — 40,000 — 11” W.C. — 14” W.C. — 10” — 50
MODEL OPERATING ORIFICE SIZE INPUT SIZE
NO. PRESSURE BURNER PILOT BTU/H WIDTH LENGTH HEIGHT WEIGHT
MH/HS40NG 6.8”w.c. 37 .023 40.000 19-1/4” 30-1/4” 12” 25 lbs.
MH/HS40LP 10”w.c. 50 .015 40,000 19-1/4” 30-1/4” 12” 25 lbs.
Table 3. Installation, Ventilation and Mounting Information
BTU/HR. RATING NORMAL
MODEL GAS MOUNTING CLEARANCES TO COMBUSTIBLE SURFACES
NO. NAT. L.P. POSITION TOP SIDES BACK BELOW