Cadet The Com-Pak Plus Technical Information download pdf (Page 8)

KNOW YOUR WATTAGE

Step 1: Age of Home

Select column with age of your home - A heat loss calculation

should be performed if your home falls outside of these standards.

Step 2: Size of Room

Select row with closest

square footage for room

you want to heat.

•

Rooms with greater than

average window space,

increase wattage by 50%

•

If wattage recommendation

falls between two heaters,

select the heater with

higher wattage

•

If you live in a higher

altitude / colder climate,

we recommend adding

2 watts per square foot.

Step 3: General Rule of Thumb

This Selection Guide recommends approximately 4 watts per square

foot for homes built in 2008 or later, 6 watts per square foot for

homes built between 1980 – 2007, and 10 watts per square foot

for homes built prior to 1980. See exceptions in Step 2. A heat loss

calculation should be performed for more complete information.

THE CHOICES: GOOD, BETTER, OR BEST?

GOOD Our bimetal thermostats use two dissimilar pieces of metal bonded

together that bend as the temperature changes. As a result, the heater is

turned on and off within a 3-5 degree comfort range of your set point.

BETTER Our heat anticipated thermostats meet comfort needs, while

optimizing economy and energy efficien

cy.

The increased bimetal thickness

prevents damage and gives improved thermal differential performance.

As a result, the heater is turned on and off within a 2-3 degree comfort

range of your set point.

BEST Our electronic thermostats use digital temperature sensing for

precise temperature control. They monitor room temperature within

a 1 degree or less comfort range of your set point. Select models ca

be programmed to time and day.

Things to Consider

If energy efficiency is important, keep in mind that wide temperature

fluctuations in some thermostats can waste energy, increasing the cost

of running your heaters. Research of electronic thermostats has shown

that significant savings of up to 20% can be attributed to their use.

Cadet programmable electronic thermostats can save up to 28% on

your el

ectric heating bill.

Heater Selection Tips

Important Circuit Information!

Prior to 1980

R11 walls, R19 ceiling,

single pane windows,

9 ft ceilings

2008+

R21walls, R30 floors,

R38 ceilings,

standard thermal

pane windows

1980-2007

R19 walls, R30 floors

and ceilings, standard

windows thermal

pane, 8 ft ceilings

Circuits must be derated by 20%

A SAFETY CODE REQUIREMENT.

Maximum wattage allowed

on a circuit is calculated by

multiplying the derated amps

by the voltage.

Example:

20 amp circuit with 240 volt

application

1. 20 amps x 20% = 4 amps

2. 20 amps - 4 amps = 16 amps

(max allowed)

3. 16 amps x 240 volts = 3,840 watts

(max allowed)

Please visit www.cadetco.com for a complete heat loss calculation tool

KNOW YOUR VOLTAGE

Before buying the heater of your choice, you must know the voltage

at connection. You must know whether you have 120 volt or 240 volt

power supply.

Ways to check your voltage:

•

Check Breaker - Single Pole is 120 volt; Double Pole is 240 volt.

•

If replacing an old heater - Identify voltage on old heater label.

•

The most accurate way to check the voltage supply is with

a voltmeter.

WARNING! This test will have to be performed with the circuit

breaker ‘on’. If you are uncomfortable working with live electrical

circuits, please consult an electrician.

CHECK AND ABIDE BY ALL

ELECTRICAL SAFETY CODES

◆

Heater and Thermostat Selection Tips

I. When connecting a heater

to 120-volt dedicated circuits:

•

Use a 20-amp single pole circuit breaker

•

Use 12/2 with ground wire

•

Reference National Electric

Code 210.24

II. When connecting a heater

to 120-volt existing circuits:

•

Reference National Electric

Code 210.24

III. When connecting a heater

to 240-volt circuits us

ing:

a) 20 amp double pole circuit breaker,

•

3,840 watts is max load allowed

on a circuit

•

Use 12/2 with ground wire

b) A 30 amp double pole circuit breaker,

•

5,760 watts is max load allowed

on a circuit

•

Use 10/2 with ground wire

c) Reference National Electric Code 210.24

Heating Circuit Hints

Sq. Footage 1980- Prior to

of Room 2008+ 2007 1980

50 200 300 500

75 300 450 750

100 400 600 1000

125 500 750 1250

150 600 900 1500

175 700 1050 1750

200 800 1200 2000

225 900 1350 2250

250 1000 1500 2500

275 1100 1650 2750

300 1200 1800 3000

325 1300 1950 3250

350 1400 2100 3500

375 1500 2250 3750

400 1600 2400 4000

(BTU = Watts x 3.412)

Choosing The Right Thermostat

THE BASICS

Low Voltage or Line Voltage?

A LINE voltage thermostat should be used for zonal electric heat

systems such as:

•

Electric fan heaters

•

Baseboard heaters

LOW voltage thermostats are typically used to control central heating

and cooling systems. A LOW voltage thermostat should only be used

with Cadet heaters if the amperage load exceeds the rating of the line

volt

age thermostat and only when combined with a relay.

Single Pole or Double Pole?

INGLE POLE thermostats break only one side of the power line, therefore,

power is continuous to the heater. The control knob will only have a low

temperature setting with no “Off” position. Check with local codes

for building requirements.

DOUBLE POLE thermostats break both sides of the power line, therefore,

all power to t

he heater is interrupted. The control knob will have an

"Off" position. Check with local codes for building requirements.

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