We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Silver cylindrical immersion heater about 19 inches long with mounted thermostat dial and NPT fittings

Vulcan

Vulcan HTTR060U Spa Heater 240V 6kW 20 In

SKU CH-6H6F-XFAE6

Immersion spa heater with unit-mounted thermostat, 240 V AC, 6 kW output, 25 A draw, 19 in immersed length and 22-1/2 in width, minimum flow 15 gpm

  • TypeImmersion
  • 6 kW output heats spa water quickly
  • 240 V single-phase supply suits standard installations
  • 15 gpm minimum flow ensures safe operation
  • 19 in immersed length fits 20 in heater housings
  • Unit-mounted mechanical thermostat provides direct temperature control

Spa heater for hot-tub owners

The Vulcan HTTR060U is a 240 V AC immersion heater rated at 6 kW for residential spas and hot tubs. It includes a unit-mounted mechanical thermostat with a selector dial for temperature control. The heater requires a minimum flow rate of 15 gpm to operate safely.

6 kW immersion output

The single specification that decides fit is the 6 kW heating capacity at 240 V single-phase drawing 25 A. The immersed portion measures 19 in while the overall width is 22-1/2 in. Inlet and outlet connections use 1-1/4 in NPT bushings. It is UL Recognised and approved for use with parts N15/03099 and N15/03101.

Sustained load behaviour

Under continuous operation the element maintains its 6 kW output as long as water flow meets or exceeds the 15 gpm minimum. The mechanical thermostat cycles the element to hold the set temperature without electronic drift. Proper flow prevents dry-fire damage during extended heating cycles.

Highlights

  • 6 kW output heats spa water quickly
  • 240 V single-phase supply suits standard installations
  • 15 gpm minimum flow ensures safe operation
  • 19 in immersed length fits 20 in heater housings
  • Unit-mounted mechanical thermostat provides direct temperature control

Specifications

BrandVulcan
TypeImmersion

Questions about this item

What does the 6 kW rating mean for heating my spa?

At 240 V the heater draws 25 A and delivers 6 kW of heat into the water, raising temperature at a rate determined by your spa volume and starting temperature.

What does the 1-1/4 in NPT inlet limit in practice?

The 1-1/4 in NPT bushing sets the maximum pipe size that can thread directly into the heater; larger plumbing requires a reducer.

How much clearance does the 19 in immersed length need inside the equipment bay?

The element extends 19 in into the water path, so the bay must provide at least that depth plus room for the 22-1/2 in overall width and the mounted thermostat dial.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.