Heat & Glo • MEZZO36-B/ST-B, MEZZO48-B/ST-B, MEZZO60-B/ST-B, MEZZO72-B/ST-B Owner’s Manual • 2300-974 Rev. K • 6/18
6
A. Appliance Certification
NOT INTENDED FOR USE AS A PRIMARY HEAT SOURCE.
This appliance is tested and approved as either supplemen-
tal room heat or as a decorative appliance. It should not be
factored as primary heat in residential heating calculations.
NOTICE:
This installation must conform with local codes.
In the absence of local codes you must comply with the
National Fuel Gas Code, ANSI Z223.1-latest edition in
the U.S.A. and the CAN/CGA B149 Installation Codes in
Canada.
2
Product Specific Information
B. Glass Specifications
This appliance is equipped with 5 mm ceramic glass. Re
-
place glass only with 5 mm ceramic glass. Please contact
your dealer for replacement glass.
C. BTU Specifications
This product is listed to ANSI standards for “Vented Gas
Fireplace Heaters” and applicable sections of “Gas Burn
-
ing Heating Appliances for Manufactured Homes and
Recreational Vehicles”, and “Gas Fired Appliances for
Use at High Altitudes”.
Models
(U.S. or Canada)
Maximum
Input BTU/h
Minimum
Input
BTU/h
Orifice
Size
(DMS)
MEZZO36-B
(NG)
(0-2000 FT)
30,000
17,500
#36
MEZZO36-B
(Propane)
(0-2000 FT)
29,000
15,500
#52
MEZZO36ST-B
(NG)
(0-2000 FT)
30,000
17,500
#36
MEZZO36ST-B
(Propane)
(0-2000 FT)
29,000
15,500
#52
MEZZO48-B
(NG)
(0-2000 FT)
40,000
21,000
.124
MEZZO48-B
(Propane)
(0-2000 FT)
36,000
19,500
#49
MEZZO48ST-B
(NG)
(0-2000 FT)
40,000
21,000
.124
MEZZO48ST-B
(Propane)
(0-2000 FT)
36,000
19,500
#49
MEZZO60-B
(NG)
(0-2000 FT)
50,000
26,000
#28
MEZZO60-B
(Propane)
(0-2000 FT)
41,000
22,000
#48
MEZZO60ST-B
(NG)
(0-2000 FT)
50,000
26,000
#28
MEZZO60ST-B
(Propane)
(0-2000 FT)
41,000
22,000
#48
MEZZO72-B
(NG)
(0-2000 FT)
58,000
30,000
#23
MEZZO72-B
(Propane)
(0-2000 FT)
46,000
24,000
#45
MEZZO72ST-B
(NG)
(0-2000 FT)
58,000
30,000
#23
MEZZO72ST-B
(Propane)
(0-2000 FT)
46,000
24,000
#45
Installation and service of this appliance should be performed by
qualified personnel. Hearth & Home Technologies recommends
HHT Factory Trained or NFI certified professionals.
MODEL:
MEZZO36-B, MEZZO36ST-B,
MEZZO48-B,MEZZO48ST-B,
MEZZO60-B, MEZZO60ST-B,
MEZZO72-B, MEZZO72ST-B
LABORATORY:
Underwriters Laboratories, Inc. (UL)
TYPE:
Direct Vent Heater
STANDARD:
ANSI Z21.88-2017 • CSA 2.33-2017
