Heater, HQ HeatMax RHS, 230v, 5.5kW, Weather Tight | HEATMAX 5.5
$627.37
| Manufacturer part number | HEATMAX 5.5 |
| Returns | 30-day returns – see our returns policy |
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HQ HeatMax RHS Weather-Tight Spa Heater 5.5kW
Model: HEATMAX 5.5
Product Overview
We stock the HydroQuip HEATMAX RHS series heater, a standalone heating solution engineered for both new installations and existing spa systems. This weather-tight unit combines robust heating capacity with practical, user-friendly design.
Key Features
- Professional-grade 5.5kW heating element
- Weather-resistant enclosure
- Stainless steel heater housing
- High-flow U-shaped design
- Integrated safety systems
- Visual operation indicator
- Complete union connections
- Durable baked enamel finish
Design Advantages
The HEATMAX series represents a practical approach to spa heating with its “heater in a box” design. The high-flow U-shaped housing ensures efficient heat transfer while maintaining optimal water flow through the system.
Technical Specifications
| Specification | Detail |
|---|---|
| Model Number | HEATMAX 5.5 |
| Power Rating | 5.5kW |
| Voltage | 230V |
| Length | 21 inches |
| Height | 15 inches |
| Width | 8 inches |
| Housing Material | Stainless steel |
| Connection Size | 2 inch unions |
| Flow Design | U-shaped housing |
| Housing Diameter | 2-1/4 inch |
| Finish | Baked enamel |
| Construction | Weather-tight |
Safety Features
- Integrated pressure switch protection
- High-limit safety circuit
- Tight differential thermostat
- Operation indicator light
- Comprehensive safety monitoring
Installation Benefits
- Complete with inlet and discharge unions
- Weather-resistant design for outdoor installation
- Versatile mounting options
- Clear operation manual included
- User-friendly controls
Performance Features
The 2-1/4″ high-flow U-shaped housing design optimizes water flow while maximizing heat transfer efficiency. The tight differential thermostat ensures precise temperature control for consistent operation.
Weather Protection
Engineered for outdoor installation, the weather-tight construction and baked enamel finish provide superior protection against environmental factors while maintaining reliable operation in various weather conditions.
Note: Includes manufacturer’s one-year warranty
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Commonly replaced parts
Parts commonly replaced on this item that we stock.
| Part | Our part number | Availability | Price | ||
|---|---|---|---|---|---|
 |
Heater, U Shape, Hydro-Quip RHS/Heatmax Repl 230v, 5.5kW | 26-0082-K | Available to order | $181.81 | |
 |
Waterway O-Ring/Gasket 711-4030 | 711-4030 | 3835 in stock | $0.73 | Add to cart |
 |
Tailpiece, 2"bt x 2"s,for Split Nut | 417-5050 | 652 in stock | $4.04 | Add to cart |
| Brand | Hydro-Quip |
|---|---|
| Model | RHS-5.5 |
| Voltage | 230v |
| Heater Type | Stand Alone |
| Heater Application | Spa |
| Wattage | 5.5kW |
| Btu Rating | 100K |
| Heater Inlet Size | 2" |
| Heater Inlet Type | Slip (s) |
| Heater Outlet Size | 2" |
| Heater Outlet Type | Slip (s) |
| H Part# | 46-355-1100 |