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73994 Heater 4kW
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Heater 4kw
This part is a replacement 4 kw 240 volts 2.25" x 15" stainless steel tube factory for select Caldera hot tub models. The heater is powered and controlled by the control box.
The heater is inserted in the discharge of the jet pump plumbing and is located under the control box. Compatible with 1999 to current Caldera, Hot Spot, and Solana spa models.
*Check specs section for full list of compatible models and years.
Specifications
Make Model Date Range
Hot Spot
Relay
2010-Current
Hot Spot
Rhythm
2010-Current
Hot Spot
Tempo
2010-Current
Hot Spot
SX
2011-Current
Hot Spot
TX
2011-Current
Hot Spot
Mallorca
2006-2009
Hot Spot
Sorrento
2006-2009
Hot Spot
La Palma
2008-2009
Hot Spot
Tobago
2006-2009
Hot Spot
Trinidad
2006-2009
Solana
SX
2006-2010
Solana
TX
2006-2010
Solana
RX
2006-2009
Caldera
Palatino
2010-Current
Caldera
Marino
2010-Current
Caldera
Vanto
2011-Current
Caldera
Aventine
2006-2015
Caldera
Cumberland
2006-2009
Caldera
Olympia
2006-2009
Caldera
Tarino
2013-Current
Caldera
C 30
2006-Current
Caldera
San Gabriel
2008-2009
Caldera
Oasis
2006-2009
Caldera
C 45
2006-2009
Item Description Part #
1
Control Box
76840
2
Kit Control
76843
3
Fuse 25A/ SC Time Delay
71618
4
Control Thermistor
72493
5
Split Nut Union 2"
33761
6
Heater Assy
73994
7
Pressure Switch
73995
8
Hi-Limit Thermistor
73992
9
Tailpiece Heater
73905
10
O-Ring Tail Piece
34447
Item Description Part #
1
15 Amp/ 115v GFCI w/Cover
37870
2
Control Box
Use 76840
3
Fuse 25A/300V SC Time Delay
71618
4
Control Thermistor
72493
5
Split Nut Union 2"
33761
6
Heater Assy
73994
7
Presssure Switch
73995
8
Hi-Limt Thermistor
73992
*
Tail Piece Heater
70905
*
O-Ring Tail Piece
34447
**For select Hot Spot Models 2023 - Current (HAWK)
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