Mr. Heater HST45 Operations Instructions download pdf (Page 12)

Enerco Group, Inc., | Gas-Fired Low-Intensity Infrared Heater Operating Instructions and Owner’s Manual

Canadian Installations1 US Installations2

A= Clearance above grade, 12 inches (30 cm) 12 inches (30 cm)

veranda, porch, deck or

balco

B= Clearance to window or door 6 inches (15 cm) for appliances < 6 inches (15 cm) for appliances <

at may be opened 10,000 Btuh (3 kW), 12 inches (30 10,000 Btuh (3 kW), 9 inches (23

cm)

for appliances > 10,000 Btuh cm) for appliances > 10,000 Btuh

kW) and < 100,000 Btuh (30 (3 kW) and < 50,000 Btuh (15

kW),

36 inches (91 cm) for kW), 12 inches (30 cm) for

appliances

> 100,000 Btuh (30 kW) appliances > 50,000 Btuh (15 kW)

C= Clearance to permanently * *

closed

window

D= Vertical clearance to ventilated * *

ffit located above the

terminal

within a horizontal

distance

of 2 feet (61 cm) from

the

center line of the terminal

E= Clearance to unventilated soffit * *

F= Clearance to outside corner * *

G= Clearance to inside corner * *

H= Clearance to each side of 3 feet (91 cm) within a height 15

nter line extended above feet (4.5 m) above the *

meter/regulator assembly meter/regulator assembly

I= Clearance to service regulator 3 feet (91 cm) *

vent outlet

J= Clearance to nonmechanical air 6 inches (15 cm) for appliances < 6 inches (15 cm) for appliances <

supply

inlet to building or the 10,000 Btuh (3 kW), 12 inches (30 10,000 Btuh (3 kW), 9 inches (23 cm)

combustion

air inlet to any cm) for appliances > 10,000 Btuh (3 for appliances > 10,000 Btuh (3 kW)

other appliance kW) and < 100,000 Btuh (30 kW), and < 50,000 Btuh (15 kW), 12

36 inches (91 cm) for appliances inches (30 cm) for appliances >

> 100,000 Btuh (30 kW) 50,000 Btuh (15 kW)

K= Clearance to a mechanical air 6 feet (1.83 m) 3 feet (91 cm) above if within 10 feet

supply

inlet (3 m) horizontally

L= Clearance above paved 7 feet (2.13 m) + *

sid

ewalk or paved driveway

loc

ated on public property

M= Clearance under veranda, 12 inches (30 cm) ++ *

rch deck, or balcony

1 In accordance with the current CSA B149.1, Natural Gas and Propane Installation Code.

2 In accordance with the current ANSI Z223.1/NFPA 54, National Fuel Gas Code.

+ A vent shall not terminate directly above a sidewalk or paved driveway that is located between two single family dwellings and serves both dwellings.

++ Permitted only if veranda, porch, deck, or balcony is fully open on a minimum of two sides beneath the floor.

* For clearances not specified in ANSI Z223.1/NFPA 54 or CSA B149.1, one of the following shall be indicated:

A minimum clearance value determined by testing in accordance with section 2.19.6, or;

A reference to the following footnote:

“Clea

rance in accordance with local installation codes and the requirements of the gas supplier.”

Typical Installation

The Illustration below shows a typical installation of the MHT / HST

tube he

ater. The installation drawing shown has a straight

horizontal venting

arrangement and specifies the minimum space

required for maintenance,

as well as the allowable range of distances

between the

two suspension points.

Detailed venting arrangements are illustrated in following portions

this section.

(*) For minimum mounting height in aircraft hangars and public

rages.

X Dimension

Mode

l Min. Max.

MHT-

45 102" 114"

Minimum

Recommended

for servicing

24"

15"

Vent terminal

Exterior

Wall

Outside

wall thickness -

10" max. 1/2" min.

Burner Box

Reflector

Minimum Mou

nting

Heig

ht- 7 feet*

Min

Max.

Suspension

Points

Section 4 VENTING

This appliance is certified under the ANS/CSA Standard for Vented

Gas-Fi

red Space Heating Appliances. In accordance with these

stan

dards all sidewall venting must conform to the supplied

diag

ram for Vent Terminal Clearances, which are stated for both

U.S.

and Canadian installations. These clearances should be

compa

red to but not less than those specified in the current ANSI

Z223.1/NFPA 54, National Fuel Gas Code, or CSA B149.1, Natural

Gas

and Propane Installation Code. Clearances not covered in the

table

or above listed codes must comply with local installation

codes

and the requirements of your local gas supplier.

HST- 45 102" 114"

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Mr. Heater HST45 Operations Instructions Page 12

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