Balboa Water Group
Therm 4.0 kW Low Flow Trombone Spa Heater 240V | C3473-1
Therm 4.0 kW Low Flow Trombone Spa Heater 240V | C3473-1
This item qualifies for free ground shipping.
In-stock orders usually leave in 1 to 2 business days, and faster delivery options appear at checkout.
Manuals, spec sheets and warranty for Balboa Water Group
Therm 4.0 kW low flow trombone spa heater
Get heat back with this Therm 4.0 kW low flow trombone heater, 240 volt, part C3473-1.
It is listed for Caldera spas and Laing 6595 and 7340 pump applications. Match the heater shape, wattage and pump listing first. Questions? Call 631-678-6506.
How to choose and fit the Low Flow Trombone Heater, 4.0 kW, 240V
Read your old heater wattage and voltage and confirm 4.0 kW and 240V.
Check that your heater has the trombone shape and the low flow design.
Compare your spa to the Caldera and Laing 6595 and 7340 listing. Call 631-678-6506 if you are unsure.
Works on
Low Flow Trombone Heater, 4.0 kW, 240V questions and answers
What is the heater rating?
It is listed as 4.0 kW and 240 volts. Some listings show 230V, so check your old heater label.
What does trombone mean?
It describes the bent heater tube shape. Compare it to your old heater.
Do I need a pro?
Heaters use 240 volt wiring, so a qualified spa technician is the safe choice.
Is it in stock?
Stock changes often. If it shows as unavailable, call 631-678-6506 and we will check.
Will it fit my spa?
Confirm the part number and size against your current part, or call 631-678-6506 and we will help you check before you order.
What does the photo show?
The photo shows the Balboa Water Group logo, not the part itself. Call 631-678-6506 and we will help you match the part number C3473-1 before you order.