Spa Heater 4.0 kw for plastic packs 58104 58104-Q

Spa Heater 4.0 kw for plastic packs. This 2 inch in diameter flow through hot tub heater is 15" long.  This type of 4 kilowatt heater is used in QCA spas and by other hot tub manufacturers that use a plastic Balboa spa pack.

This model 58104 Balboa heater includes the internal sensors.

Hot Tub Heater Tube:

• No welds required on tube
• 316 stainless steel available
• Front mounted
• Easier to service

Smart Sensor Technology:

• Both sensors are identical and interchangeable
• Sensors monitor each other via software to regulate heater function such as water flow and temperature
• Assures a proper and safe operating environment for the heating element
• Multiple high limit safety systems
• All safety functions are active 24/7
• Eliminates excessive heater cycling
• Automatically adapts to flow direction (although flow direction is usually the same on a hot tub)
• Detects flow restrictions such as a clogged filter or closed slice valve
• Minimizes calcium buildup on the heater element

M7 type heaters are found in QCA Spas, Caldera, Sundance, Cal Spas, Marquis, Coast, and more.