Heatilator • NDV3630I-B, NDV3933I-B, NDV4236I-B, NDV4236I-NVR, NDV4842I-B Owner’s Manual • 2382-981 Rev. N • 5/22
6
B. Glass Specifications
Hearth & Home Technologies appliances manufactured
with tempered glass may be installed in hazardous lo-
cations such as bathtub enclosures as defined by the
Consumer Product Safety Commission (CPSC). The
tempered glass has been tested and certified to the re
-
quirements of
ANSI Z97.1
and
CPSC 16 CFR 1202
(Safety Glazing Certification Council
SGCC# 1595
and
1597
. Architectural Testing, Inc. Reports
02-31919.01
and
02-31917.01
).
This statement is in compliance with
CPSC 16 CFR Sec-
tion 1201.5
“Certification and labeling requirements”
which refers to
15
U.S. Code
(USC) 2063
stating “…Such
certificate shall accompany the product or shall otherwise
be furnished to any distributor or retailer to whom the
product is delivered.”
Some local building codes require the use of tempered
glass with permanent marking in such locations. Glass
meeting this requirement is available from the factory.
Please contact your dealer or distributor to order.
C. BTU Specifications
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
2
Product Specific Information
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:
NDV3630I-B, NDV3630IL-B,
NDV3933I-B, NDV3933IL-B
NDV4236I-B, NDV4236IL-B
NCV4236I-NVR
NDV4842I-B, NDV4842I-B
LABORATORY:
Underwriters Laboratories, Inc. (UL)
TYPE:
Direct Vent Heater
STANDARD:
CSA / ANSI Z21.88-2019 • CSA 2.33-2019
Installation and service of this appliance should be performed by
qualified personnel. Hearth & Home Technologies recommends
HHT Factory Trained or NFI certified professionals.
Models
(U.S. or Canada)
Maximum
Input
BTU/h
Minimum
Input
BTU/h
Orifice
Size (DMS)
NDV3630I-B (NG)
(0-2000 FT)
20,000 14,000
.083 in.
NDV3630IL-B
(Propane)
(0-2000 FT)
18,500 13,500
1.25 mm
NDV3933I-B (NG)
(0-2000 FT)
22,000 15,000
#43
NDV3933IL-B
(Propane)
(0-2000 FT)
20,000 14,500
#55
NDV4236I-B (NG)
(0-2000 FT)
25,000 17,000
#42
NDV4236IL-B
(Propane)
(0-2000 FT)
24,000 17,000
#54
NDV4236I-NVR
(NG)
(0-2000 FT)
25,000 17,000
#42
NDV4236I-NVR
(Propane)
(0-2000 FT)
24,000 17,000
#54
NDV4842I-B (NG)
(0-2000 FT)
27,500 19,500
#39
NDV4842IL-B
(Propane)
(0-2000 FT)
26,500 18,500
#53