Coates 6ILS in-line electric spa heater, 6 kW 240 V single phaseCoates 6ILS In-Line Electric Spa Heater, 1 Phase 240 V 6 kW In stock$52899
Coates 6ILS in-line electric spa heater, 6 kW 240 V single phase
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Coates 6ILS In-Line Electric Spa Heater, 1 Phase 240 V 6 kW

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$52899
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Quick overview

  • Compact in-line design Plumbs directly into the circulation line rather than sitting as a separate appliance.
  • Stainless steel tank The heater body is stainless, built for constant contact with treated water.
  • Replaceable titanium elements Elements are titanium and are serviceable, so element failure does not mean a new heater.
  • For spas and hot tubs under 400 gallons Intended for spas and hot tubs with a forced water circulation system holding less than 400 gallons.
  • Single phase 240 V Rated 6 kW at 240 V, one phase, drawing 23 A, so size the circuit and breaker accordingly.
  • Rating varies in the source This unit is also listed as 5.5 kW at 230 V, which reflects the same heater rated at a different supply voltage.
Full description and specifications ↓

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Product details

The Coates 6ILS is an in-line electric heater for spas and hot tubs, rated 6 kW on a single phase 240 V supply with a 23 amp draw. It plumbs into the circulation line rather than standing as a separate piece of equipment.

How it is built

The tank is stainless steel and the heating elements are titanium. Both choices are about living in treated water year after year. The elements are replaceable, which matters over the life of the heater: when an element eventually fails, it is a serviceable repair rather than a reason to buy a new unit.

What it is sized for

Coates intends this heater for spas and hot tubs that have a forced water circulation system and hold less than 400 gallons. It is a spa heater, not a swimming pool heater, and the compact in-line format reflects that.

Electrical and rating

Plan the installation around single phase 240 V and a 23 amp draw, and have the circuit and breaker confirmed by a licensed electrician. Note that this heater appears in the source under two ratings, 6 kW at 240 V and 5.5 kW at 230 V. Electric heater output moves with supply voltage, so those are two ways of describing the same unit.

Specifications
Brand Coates
Manufacturer part number 6ILS
Type In-line electric spa heater
Heating capacity 6 kW
Voltage 240 V
Phase 1 phase
Current draw 23 A
Also listed in source as 5.5 kW, 230 V
Tank material Stainless steel
Element material Titanium, replaceable
Intended for Spas or hot tubs with a forced water circulation system holding less than 400 gallons
Shipping weight 9.4 lb
Ships Parcel

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Questions and answers

What people ask about this product, answered by our pool techs.

Is this 6 kW or 5.5 kW?
The listing carries both figures. It is rated 6 kW at 240 V, and the same heater is also listed as 5.5 kW at 230 V. Output tracks supply voltage, so both describe the one unit.
What size pool or spa is it for?
Spas and hot tubs with a forced water circulation system holding less than 400 gallons. It is not intended as a swimming pool heater.
Can the heating elements be replaced?
Yes. The elements are titanium and replaceable, so a failed element is a service job rather than a new heater.
What electrical supply does it need?
Single phase 240 V, drawing 23 amps. Have a licensed electrician confirm the circuit and breaker before installation.
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