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Sauna Wiring Sizes
Sizing the Sauna Heater
Sizing the sauna heater to match the sauna is important to keep the warm-up time to 20 to 25 minutes
The average home sauna used 2 or 3 times per week will cost about 60 cents per session to operate!
Using your sauna every week will cost you 60 to 80 cents per session or $.60 to $1.60 per week!
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It costs less to use your sauna than it does to operate your clothes dryer per month.
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All homes in North America (U.S. and Canada) have 240-volt electrical service - same as your stove!
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Most sauna heaters are 240-volt for more efficient operating and easier wiring.
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110-volt sauna heaters are available only in 2 Kw for small sauna rooms
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Saunacore SE Special Edition
Sauna Heater Includes Rocks
- Choice of Controls
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Sauna Heater Packages Include ...
- Most sauna heaters are 240-volt and must be hard-wired according to code
- 110-volt heaters are available in 2 Kw - for 100 cubic feet sauna
- Choice of sauna controls - digital or old-style mechanical
- Heaters 7.5 Kw and larger include the magnetic contactor
- Igneous granite rocks are included
Sauna Control Options - 3 Choices ...
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Heaters are Approved for USA and Canada ...
- All sauna heaters are approved by UL and CSA to meet the latest UL and CSA electrical standards & safety requirements for sauna equipment, stoves & heaters for USA and Canada.
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Wiring for the Sauna Light
The sauna light should be on its own 110 volt circuit. Use a dimmer for optimal lighting control - it's nice to have subdued lighting inside the sauna to help you relax more.
Wire Sizes for Sauna Heaters - Wiring & Breakers ...
For Residential 240-Volt Sauna Heaters, Sauna Stoves & Sauna Equipment
Never Use a GFCI Ground Fault Circuit Breaker
Wiring Sizes are Shown only for General Guidance -
to be finalized by certified electrical installer
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Heater
KW |
Saunacore
& Homecraft |
Amperage
Draw 240V |
Wire Size
AWG |
Breaker
Size |
Max
Room Size |
Saunacore
Wall-hung: |
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2 KW 110V
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Saunacore 110v
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18 Amps
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#10
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30 Amp
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100 cu ft
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2 KW 240V |
Saunacore 240v
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9 Amps |
#14 |
15 Amp |
100 cu ft |
3 KW Wall |
Saunacore 240v
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13 Amps |
#12 |
20 Amp |
150 cu ft |
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4 Kw Wall |
Saunacore 240v
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17 Amps |
#10 |
30 Amp |
200 cu ft |
5 Kw Wall |
Saunacore 240v
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21 Amps |
#10 |
30 Amp |
250 cu ft |
6 Kw Wall |
Saunacore 240v
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25 Amps |
#10 |
30 Amp |
300 cu ft |
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7.5 Kw Wall |
Saunacore 240v
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31.5 Amps |
#8 |
40 Amp |
375 cu ft
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9 Kw Wall |
Saunacore 240v
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37.5 Amps |
#6 |
50 Amp |
450 cu ft |
10.5 Kw Wall |
Saunacore 240v
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44 Amps |
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60 Amp |
525 cu ft |
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Homecraft
Wall-hung: |
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4 Kw Wall
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Homecraft 240v
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17 Amps
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#10
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30 Amp
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200 cu ft
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5 Kw Wall |
Homecraft 240v
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21 Amps |
#10 |
30 Amp |
250 cu ft |
6 Kw Wall |
Homecraft 240v
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25 Amps |
#8 |
40 Amp |
300 cu ft |
7.5 Kw Wall |
Homecraft 240v |
31.5 Amps |
#6 |
50 Amp |
375 cu ft |
9 Kw Wall |
Homecraft 240v
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37.5 Amps |
#6 |
50 Amp |
450 cu ft |
Floor-mount
Heaters:
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10.5 Kw Floor
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Saunacore 240v
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44 Amps |
#6
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60 Amp |
525 cu ft |
12 Kw Floor |
Saunacore 240v
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50 Amps |
#4
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60 Amp |
600 cu ft |
12 Kw Floor |
Homecraft 240v
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50 Amps |
#4
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60 Amp |
600 cu ft |
15 Kw Floor
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Saunacore 240v
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63 Amps |
#3?
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70 Amp |
750 cu ft |
15 Kw Floor |
Homecraft 240v |
63 Amps |
#3? |
70 Amp |
750 cu ft |
18 Kw Floor
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Saunacore 240v
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75 Amps |
#2?
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100 Amp |
900 cu ft |
18 Kw Floor |
Saunacore 208v |
50 Amps |
#4? |
70 Amp |
900 cu ft |
21 Kw Floor |
Saunacore 208v |
59 Amps |
#3? |
70 Amp |
1050 cu ft |
Sauna Heater Sizes & Dimensions -
- For Residential Sauna Heaters, Sauna Stoves & Sauna Equipment
All Sauna Heaters are 240 Volt - Unless Otherwise Shown.
208 Volt Heaters are Shown in the Next Chart Below
Heater Dimensions
Saunacore 2 Kw, 3 Kw: ..... ..... - 15"l x 6"w x 23.5"h
Saunacore 4 Kw, 5 Kw, 6 Kw: - 15"l x 10"w x 23.5"h
Saunacore 7.5 Kw to 10.5 Kw: - 18"l x 12"w x 27.5"h
Homecraft 4 Kw, 5 Kw: .... .... ... - 15"l x 8"w x 22"h
Homecraft 6 Kw, 7.5 Kw, 9 Kw: - 20"l x 12"w x 24"h
Saunacore FL - Floor mounted: - 24"l x 19"w x 31"h - needs 6" clearance on sides
Heater Kw |
Type & Size |
Sauna Heater Sizes |
Total Space Needed
For Heater Guard |
Flat on Wall |
In Corner |
2 to 3 Kw
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Saunacore
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15"L x 6"W x 23.5"H
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21"Lx11"D
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4 to 6 Kw |
Saunacore |
15"L x 10"W x 23.5"H |
21"Lx15"D |
20"x20" |
7 to 10.5 Kw |
Saunacore |
18"L x 12"W x 27.5"H |
23"Lx17"D |
22.5"x22.5" |
9 to 21 Kw |
SC FL
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24"L x 19"W x 31"H |
32"Lx27"D |
32"Lx27"D |
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Floor Models |
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Commercial Saunas - 208-Volt Electrical Specifications
- Commercial Voltage: 208 volt 1-phase or 3-phase
- European Voltage: 220 volt 50 Hz
- Industrial & Commercial Voltage: 440, 480 and 600 volts
- Wiring Sizes are Shown only for General Guidance -
to be finalized by certified electrical installer
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Heater
KW |
Type |
Amperage
208V 3Ph |
Wire Size
AWG |
Breaker
Size |
Min Cu Ft
Room Size |
6 KW
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Wall-hung
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17 Amps - 208v 3ph
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#10
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30A-3Pole
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300
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7.5 KW |
Wall-hung |
21 Amps - 208v 3ph
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#10 |
30A-3Pole |
375 |
9 KW |
All |
25 Amps - 208v 3ph
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#8 |
40A-3Pole |
450 |
10.5 KW |
All |
29 Amps - 208v 3ph
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#8 |
40A-3Pole |
525 |
12 KW |
Floor |
34 Amps - 208v 3ph
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#8 |
50A-3pole |
600 |
15 KW |
Floor |
42 Amps - 208v 3ph
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#6 |
60A-3Pole |
750 |
18 KW |
Floor |
50 Amps - 208v 3ph
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#4? |
70A-3Pole |
900 |
21 KW |
Floor |
59 Amps - 208v 3ph
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#4? |
70A-3Pole |
1050 |
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