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1.0 Introduction
1.1 Appliance Certification
Laboratory: PFS in Cottage Grove, Wisconsin
Standards:
•
ANSI Z21.88-2019/CSA 2.33-2019, Vented Gas Fireplace
Heaters
•
CSA 2.17 2017, Gas-Fired Appliances for Use at High
Altitudes
This installation must conform with local codes, or in the
absence of local codes, with the National Fuel Gas Code,
ANSI Z223.1/NFPA 54, or the Natural Gas and Propane In-
stallation Code, CSA B149.1.
1.2 California Proposition 65 Warning
⚠
WARNING: This product can expose you to chemicals
including Carbon Monoxide, that is an externally vented by-
product of fuel combustion, which is [are] known to the
State of California to cause birth defects or other reproduc-
tive harm. For more information, visit
www.P65Warnings.ca.gov.
1.3 Requirements for the Commonwealth of
Massachusetts
The following requirements reference various Massachu-
setts and national codes not contained in this manual.
For all sidewall horizontally vented gas fueled equipment
installed in every dwelling, building or structure used in
whole or in part for residential purposes, including those
owned or operated by the Commonwealth and where the
side wall exhaust vent termination is less than (7) feet
above finished grade in the area of the venting, including
but not limited to decks and porches, the following require-
ments shall be satisfied:
1.3.1 Installation of Carbon Monoxide
Detectors
At time of installation of side wall horizontally vented gas
fueled equipment, the installing plumber or gas-fitter shall
observe that a hard wired carbon monoxide detector with
an alarm and battery back-up is installed on the floor level
where the gas equipment is to be installed. In addition, the
installing plumber or gas-fitter shall observe that a battery
operated or hard wired carbon monoxide detector is in-
stalled on each additional level of the dwelling, building or
structure served by the side wall horizontal vented gas
fueled equipment. It shall be the responsibility of the prop-
erty owner to secure the services of qualified licensed pro-
fessionals for the installation of hard wired carbon monox-
ide detectors.
In the event that the side wall horizontally vented gas
fueled equipment is installed in a crawl space or attic, the
hard wired carbon monoxide detector with alarm and
battery back-up may be installed on the next adjacent floor
level. In the event that the requirements of this subdivision
can not be met at the time of completion of installation, the
owner shall have a period of thirty (30) days to comply with
the above requirements; provided, however, that during
said thirty (30) day period, a battery operated carbon mon-
oxide detector with an alarm shall be installed.
Hussong Mfg. Co, Inc.
NDK-48-DV - PFS Report No. 23-196
1.3.2 Approved Carbon Monoxide Detectors
Each carbon monoxide detector as required in accordance with
the above provisions shall comply with NFPA 720 and be ANSI/UL
2034 listed and IAS certified.
1.3.3 Signage
A metal or plastic identification plate shall be permanently
mounted to the exterior of the building at a minimum of eight (8)
feet above grade directly in line with the exhaust vent terminal
for the horizontally vented gas fueled heating appliance or
equipment. The sign shall read, in print no less the one-half inch
(½) in size, "GAS VENT DIRECTLY BELOW. KEEP CLEAR OF ALL OB-
STRUCTIONS".
1.3.4 Inspection
The state or local gas inspector of the side wall horizontally vent-
ed gas fueled equipment shall not approve the installation un-
less, upon inspection, the inspector observes carbon monoxide
detectors and signage installed in accordance with the provisions
of 248 CMR 5.08 (2) (a) 1 through 4.
1.3.5 Exemptions
The following equipment is exempt from 248 CMR 5.08 (2) (a) 1
through 4: The equipment listed in Chapter 10 entitled
"Equipment Not Required To Be Vented" in the most current
edition of NFPA 54 as adopted by the Board; and Product Ap-
proved side wall horizontally vented gas fueled equipment in-
stalled in a room or structure separate from the dwelling, build-
ing or structure used in whole or in part for residential purposes.
1.3.6 Manufacturer Requirements
1.3.6.1 Gas Equipment Venting System Provided
When the manufacturer of Product Approved side wall horizon-
tally vented gas equipment provides a venting system design or
venting system components with the equipment, the instruc-
tions provided by the manufacturer for installation of the equip-
ment and the venting system shall include:
•
Detailed instructions for the installation of the venting sys-
tem design or the venting system components; and
•
A complete parts list for the venting system design or
venting system.
1.3.7 Gas Equipment Venting System NOT Provided
When the manufacturer of Product Approved side wall horizon-
tally vented gas equipment does not provide the parts for
venting the flue gases, but identifies "special venting systems",
the following requirements shall be satisfied by the manufactur-
er:
•
The referenced "special venting systems" instructions shall
be included with the appliance or equipment installation
instructions and;
•
The "special venting systems" shall be Product Approved by
the Board, and the instructions for that system shall include
a parts list and detailed installation instructions.
A copy of all installation instructions for all Product Approved
side wall horizontally vented gas fueled equipment, all venting
instructions, all parts lists for venting instructions, and/or all
venting design instructions shall remain with the appliance or
equipment at the completion of the installation.
7
Starting Serial Number: 24 N48DV00001 04
Rev. 1 - November 2023
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