1. GENERAL INSTALLATION INFORMATION AND REQUIREMENTS
• The required minimum clearances to combustible surfaces are illustrated in Figure 2 and Table 3. As shown on Figure
2, the front of the heater is installed at the minimum required clearance to combustible surfaces and toward open
space, and then the other sides must have a minimum clearance of 16 inches to combustible surfaces.
• Installation of this appliance above 2,000 ft (610 m) shall be in accordance with local codes, or in the absence of
local codes, the National Fuel Gas Code, ANSI Z223.1 / NFPA 54 or National Standard of Canada, Natural Gas and
Propane Installation Code, CSA B149.1.
Table 3. Installation, Ventilation and Mounting Information
MODEL
NO.
MH25NG
MH22LP
Mr. Heater Gas Fired Infrared Workshop Heater
CHAPTER 2
HEATER INSTALLATION
Figure 2. Installation Clearances to Combustible Surfaces
BTU/HR. RATING
GAS
(NAT.)
(L.P.)
25,000
-
-
22,000
CLEARANCES TO
NORMAL
COMBUSTIBLE SURFACES
MOUNTING
POSITION
TOP SIDES BACK BELOW
30
o
14"
30
14"
o
E5
Operating Instructions and Owner's Manual
16"
16"
48"
16"
16"
48"