HydroQuip RHS-5.5 HeatMax RHS Heater 240V 5.5kW
HydroQuip RHS-5.5 HeatMax RHS Heater 240V 5.5kW. The HydroQuip HEATMAX series heater is the basic heater in a box unit. When all you need is heat, this is the most practical and user friendly unit in the industry.
The HydroQuip HeatMax RHS 5.5 is a standalone 5.5 kW spa heater designed for:
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240V, 23A circuits
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2″ high‑flow plumbing
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Any spa pack needing a remote heater
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Retrofits where the original heater failed but the control system is still good
Core features:
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5.5 kW stainless steel heating element
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Stainless steel housing (15″ × 12″ × 4″ typical)
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Pressure switch (flow‑activated safety)
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High‑limit thermal cut‑off
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Manual thermostat
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2″ unions included
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Mounting feet for floor or wall installation
The Salt‑Safe version swaps the element for titanium, ideal for saltwater spas or aggressive chemistry.
