Desa VTP22R User Manual

www.desatech.com

113261-01C

Ventilation Air From Outdoors

Provide extra fresh air by using ventilation grills

or ducts. You must provide two permanent open-

ings: one within 12" (30.5 cm) of the ceiling and

one within 12" (30.5 cm) of the ﬂoor. Connect

these items directly to the outdoors or spaces

open to the outdoors. These spaces include attics

and crawl spaces. Follow the National Fuel Gas

Code, ANSI Z223.1/NFPA 54, Section 5.3, Air for

Combustion and Ventilation for required size of

ventilation grills or ducts.
IMPORTANT:

Do not provide openings for inlet

or outlet air into attic if attic has a thermostat-

controlled power vent. Heated air entering the attic

will activate the power vent.

AIR FOR COMBUSTION

AND VENTILATION

Continued

Figure 3 - Ventilation Air from Outdoors

Outlet

Air

Ventilated

Attic

Outlet

Air

Inlet

Air

Inlet Air

Ventilated

Crawl Space

Crawl

Space

To Attic

INSTALLATION

NOTICE: This heater is intended

for use as supplemental heat.

Use this heater along with your

primary heating system. Do not

install this heater as your pri-

mary heat source. If you have a

central heating system, you may

run system’s circulating blower

while using heater. This will help

circulate the heat throughout the

house. In the event of a power

outage, you can use this heater

as your primary heat source.

WARNING: A qualiﬁed ser-

vice person must install heater.

Follow all local codes.

CHECK GAS TYPE

Use only the correct type of gas (natural or pro-

pane/LP). If your gas supply is not the correct gas

type, do not install heater. Call dealer where you

bought heater for proper type heater.

WARNING: This appliance

is equipped for (natural or pro-

pane/LP) gas. Field conversion

is not permitted.

INSTALLATION ITEMS

Before installing heater, make sure you have the

items listed below.
• for propane/LP gas, external regulator (supplied

by installer)

•  piping (check local codes)
•  sealant (resistant to propane/LP gas)
•  equipment shutoff valve *
•  ground joint union
•  sediment trap
•  tee joint
•  pipe wrench
•  for natural gas, test gauge connection*
* A CSA design-certiﬁed equipment shutoff valve

with 1/8" NPT tap is an acceptable alternative to

test gauge connection. The optional CSA design-

certiﬁed equipment shutoff valve can be purchased

from your dealer. See Accessory, page 22.

LOCATING HEATER

WARNING: Maintain the

minimum clearances shown

in Figure 4. If you can, provide

greater clearances from ceiling

and joining wall(s).

Heater may be installed either in a corner or along

the wall.

Figure 4 - Clearances to Combustibles

36"
(91.4 cm)

10"
(25.4 cm)