Hot Tub & Spa - Flow Thru Heaters

We stock all the major brands of hot tub heaters including Balboa, Hydroair as well as Chinese heaters. Spares are also available for all the major branded heaters in this sections.

See also: 
Low Flow Heaters   
Heater Elements  
Unions, Collers & Gaskets

Helpful Artical:
Replacing a Balboa Heater

Unsure what replacement part you need? Send us an image of your part

 

We stock all the major brands of hot tub heaters including Balboa, Hydroair as well as Chinese heaters. Spares are also available for all the major branded heaters in this sections.

See also: 
Low Flow Heaters   
Heater Elements  
Unions, Collers & Gaskets

Helpful Artical:
Replacing a Balboa Heater

Unsure what replacement part you need? Send us an image of your part

 

Active Filters

Sort by
Spares Available
Spares Available
  • HydroQuip Universal Rite-Fit Heater
  • Various Options Available
  • 15" Length
Out of stock Out of Stock
£107.99 - £110.99
1.3kW - 5.5kW
15" Length
Incoloy Element
2" Connections
  • Flo-Thru Replacement Heater Cal Spa XL
  • Model: 26-0011-3S-K
  • 2.5kW
  • 2" x 2" Connection
Available for Pre Order Available for Pre Order
Available for Pre Order More stock (1) on order
£164.99
 
Cal Spas XL
2.5kW
2" x 2" Connection
PSI Switch Not Included
Spares Available
  • Gecko M-Class Heater
  • OLD MPN: C2360-0601ET
  • MPN: 26-0601-AS-K
  • 3.6kW
Available for Pre Order Available for Pre Order
Available for Pre Order More stock (3) on order
£119.99
Saving: £70.69
Heater for M Class
3.6kW
2" x 2" Connections
PSI Switch Not Included

Heater for IN.YJ Control Systems for Spas

Available for Pre Order Available for Pre Order
Available for Pre Order Estimated Dispatch 28 Days
£251.99
Saving: £27.72
  • HydroQuip Flo-Thru Heater Assembly
  • 7.2kW /240V
  • Dual Element
  • 2" x 2" Tailpieces
  • Includes : Power Cord
Available for Pre Order Available for Pre Order
Available for Pre Order Estimated Dispatch 21 Days
Available for Pre Order More stock (1) on order
£328.80
Saving: £394.80
Flo-Thru Heater Assembly
Dual Titanium Element
7.2 kW / 240V
2" x 2" Tailpiece
  • Pahlen Electric Spa Heater "Aqua Spa"
  • Heating element of Incoloy 825
  • 1.5kW
  • Adjustable Temp
  • Overheating cut out and Flow Switch
In Stock with Manufacturer / Supplier In Stock with Manufacturer / Supplier
In Stock with Manufacturer / Supplier Normally ships sameday before 15:30
£515.38
 
1.5 kW
Incoloy 825 elements
Adjustable Temp - Flow Switch
230V

Heater for IN.YJ Control Systems for Spas

Available for Pre Order Available for Pre Order
Available for Pre Order Estimated Dispatch 28 Days
£251.99
Saving: £27.72
  • 5.5kW Heater Assembly
  • 2.25" High Flow U-Shaped Housing
  • Stainless Steel Housing
  • Full Range Thermostat
  • High Limit and Pressure Switch Protected
  • Weather-Tight Construction

 

Available for Pre Order Special Order Item
Alert Lead time confirmed upon order
£578.40
Saving: £145.20
HeatMax Remote Heater
5.5kW
High Limit and Pressure Switch Protected
2" or 1" Plumbing Connections
  • Pahlen Electric Spa Heater "Aqua Spa"
  • Heating element of Incoloy 825
  • 2.0 kW
  • Adjustable Temp
  • Overheating cut out and Flow Switch
In Stock with Manufacturer / Supplier In Stock with Manufacturer / Supplier
In Stock with Manufacturer / Supplier Normally ships sameday before 15:30
£484.24
 
2.0 kW
Incoloy 825 elements
Adjustable Temp - Flow Switch
230V

Heater for IN.YJ Control Systems for Spas

In stock 1 in stock
In stock Same day dispatch on orders before 15:30
£212.99
Saving: £43.90
  • Pahlen Electric Spa Heater "Aqua Spa"
  • Heating element of Incoloy 825
  • 3.0 kW
  • Adjustable Temp
  • Overheating cut out and Flow Switch
In Stock with Manufacturer / Supplier In Stock with Manufacturer / Supplier
In Stock with Manufacturer / Supplier Normally ships sameday before 15:30
£502.02
 
3.0 kW
Incoloy 825 elements
Adjustable Temp - Flow Switch
230V
  • HydroQuip Flo-Thru Heater Assembly
  • 3.0 kW
  • 15" Length
  • Replaces: C2300-0024(ET)
Discontinued Discontinued
HydroQuip Flo-Thru Heater Assembly
3.0kW
Incoloy Element
2" x 2" Tailpiece
  • HydroQuip Flo-Thru Heater Assembly
  • 4.5kW
  • 17.5" Length
  • Replaces: C2450-1008ET & VIT411092
Available for Pre Order Available for Pre Order
Available for Pre Order More stock (1) on order
£174.99
 
HydroQuip Flo-Thru Heater Assembly
4.5kW
Incoloy Element
2" x 2" Tailpiece

 

  • AeWare Heat.Wav - Heater
  • Model: 9920-101438
  • 2.0Kw
  • Suitable for IN.YE & IN.XE Control Systems for Spas
In stock 2 in stock
In stock Same day dispatch on orders before 15:30
£174.99
Saving: £19.31
  • Heat.Wav IN.YE-3.0kW
  • Model 9920-101469
  • 3.0KW
  • Suitable for IN.YE & IN.XE Control Systems for Spas
Available for Pre Order Available for Pre Order
Available for Pre Order Estimated Dispatch 28 Days
£174.99
Saving: £19.31
  •  AeWare Heat.Wav - Heater
  • Model: T9920-101435
  • 4.0Kw
  • Suitable for IN.YE & IN.XE Control Systems for Spas

 

Available for Pre Order Available for Pre Order
Available for Pre Order Estimated Dispatch 14 Days
£216.49
Saving: £13.15
Spares Available

 

  • AeWare IN.THERM - Heater
  • Model: 0603-421003
  • 2.0Kw
  • In stock 1 in stock
    In stock Same day dispatch on orders before 15:30
    £419.99
    Saving: £146.92
    Spares Available

     

    • AeWare IN.THERM - Heater
    • Model: 0603-421001
    • 3.8Kw
    In stock 1 in stock
    In stock Same day dispatch on orders before 15:30
    In stock More stock (2) on order
    £396.99
    Saving: £169.92
    Spares Available

     

    • Balboa Heater + PSI Switch
    • Model Number: 50139 
    • 2.0kW
    • Suitable for M3/Lite Leader Spa Packs
    In stock 2 in stock
    In stock Same day dispatch on orders before 15:30
    £169.49
    Saving: £53.35
    Spares Available

     

    • Balboa Heater
    • Model Number: 58063
    • 2.0KW
    • Suitable for M7/GL Metal Spa Packs
    In stock 2 in stock
    In stock Same day dispatch on orders before 15:30
    £174.99
    Saving: £41.27
    Fits GS/GL spa packs
    2 Kw
    Spares Available

     

  • Balboa Heater
  • Model Number: 58145
  • 2.0kW
  • GS/GL Plastic Spa Pack
  • In stock 3 in stock
    In stock Same day dispatch on orders before 15:30
    £167.49
    Saving: £52.34
    Spares Available

     

  • Balboa Heater + PSI Switch
  • Model Number: 50145
  • 3.0kW 
  • Suitable for M3/Lite Leader Spa Packs
  • Out of stock Out of Stock
    Email me when back in stock
    £145.99
    Saving: £45.47
    Spares Available

     

  • Balboa Heater
  • Model Number: 58061
  • 3.0kW
  • M7/GL Metal Spa Packs
  • In stock 1 in stock
    In stock Same day dispatch on orders before 15:30
    In stock More stock (1) due on 13/12/2019
    £163.99
    Saving: £50.95
    Spares Available

     

  • Balboa Heater
  • Model Number: 58118
  • 3.0kW
  • GS/GL Plastic Spa Pack
  • In stock 6 in stock
    In stock Same day dispatch on orders before 15:30
    £122.49
    Saving: £37.95
    • B/STOCK -  B/STOCK - REFURBISHED - USED / NEW HEATER ELEMENT
    • GENUINE Balboa 3.0kW Heater M7
    • Model: 58118
    • Missing Unions
    Out of stock Out of Stock
    Email me when back in stock
    £73.49
    Saving: £98.51
    Clearance
    Spares Available
    • Balboa Heater
    • Model Number: 50080
    • 5.5kW
    • Titanium Element
    • No Pressure Switch or Unions
    Out of stock Out of Stock
    Email me when back in stock
    £65.00
    Saving: £103.84
    REDUCED TO CLEAR

     

  • 3.0kW Aux Heater
  • Sperate supply required
  • Built in High limit
  • Controled from main control box
  • includes control link cable
  • In stock 1 in stock
    In stock Same day dispatch on orders before 15:30
    £335.49
    Saving: £105.05

     

    • Balboa Heater
    • Model Number 58201-01
    • 2.0KW
    • Suitable for GS100
    In stock 1 in stock
    In stock Same day dispatch on orders before 15:30
    In stock More stock (3) due on 13/12/2019
    £116.49
    Saving: £35.96

     

  • Balboa Heater
  • Model Number 58202-01
  • 3.0KW
  • Suitable for GS100
  • In stock 1 in stock
    In stock Same day dispatch on orders before 15:30
    £127.99
     

    Balboa replacement heater for BP spa packs, uses new Plug N' Click system. Fitted with 24" M7 Senosrs which detect the spa flow and tempurature.

    Suitable for - BP Spa packs
    Sensor - M7
    Mount - Stud
    Length (tube only) - 381mm
    Length (inc unions) - 495mm
    Distance between terminals - 32mm
    Connections - 2.0" Female Socket
    Element - Incoloy

    3Kw version = 11.5-12 Amps

    In stock 1 in stock
    In stock Same day dispatch on orders before 15:30
    In stock More stock (1) due on 13/12/2019
    £121.49
    Saving: £31.76

    Gecko Heat.Wav MC-3.0 kw
    MC-MSPA packs
    2"
    2 PSI Pressure Switch

    In stock 2 in stock
    In stock Same day dispatch on orders before 15:30
    £174.99
    Saving: £19.31
    • Model 9920-100346
    • MC-MSPA packs
    • 2"
    • 2 PSI Pressure Switch
    In stock 1 in stock
    In stock Same day dispatch on orders before 15:30
    £174.99
    Saving: £19.31

     

  • Gecko Heat.Wav SC Heater
  • Model: 9920-100340
  • 2.0KW
  • Suitable for SSPA Packs
  • In stock 1 in stock
    In stock Same day dispatch on orders before 15:30
    £165.49
    Saving: £28.81
    • Gecko Heat.Wav SC Heater
    • Model: 9920-100342
    • 3.0KW
    • Suitable for SSPA Packs
    In stock 1 in stock
    In stock Same day dispatch on orders before 15:30
    £172.99
    Saving: £21.31
    Spares Available

     

    • Gecko S-Class Heater
    • Model: 9920-100338
    • 4.0kW
    • Gecko S Class/SSPA Spa Packs
    In stock 2 in stock
    In stock Same day dispatch on orders before 15:30
    £121.99
    Saving: £21.28
    • 3.0kW
    • Compact design
    • Easy installation
    • Incoloy heating element
    • Ingress protection: IPx5
    • Stainless steel piping
    • Thermal protection
    • HydroQuip Heater + PSI Switch
    • 4.0KW
    • Replaces :  C2400-0535-TPS
    • Suitable for Pre M7 Spa Packs
    In stock 2 in stock
    In stock Same day dispatch on orders before 15:30
    £76.99
    Saving: £25.62
    HydroQuip Heater
    4.0kW
    Titanium Element
    2" x 2" tailpieces
    • HydroQuip Flo-Thru Heater
    • 2.5kW - Incoloy Element 
    • 2" x 2" Connection
    • AMP: 10.4 
    Out of stock Out of Stock
    Email me when back in stock
    £65.00
    Saving: £13.69
    Flo-Thru Replcement Heater
    2.5kW
    2" x 2"
    PSI Switch Not Included
    • HydroQuip Heater Assembly
    • Model: 26-0802A-3S-K
    • 2.5KW
    In stock 1 in stock
    In stock Same day dispatch on orders before 15:30
    £139.99
     
    • HydroQuip Heater "L" Shape
    • Model: 48-9122-AT-K (A2360-5350ET)
    • 3.6kW
    • Suitable for Arctic Spas
    Available for Pre Order Available for Pre Order
    Available for Pre Order More stock (2) on order
    £179.99
     
    Arctic Spa Heater
    "L" Shape
    3.6 kW
    2" x 2" Tailpiece
    • HydroQuip Spa Heater
    • 3.6KW
    • Suitable for Arctic Spas
    • Replaces model : A2360-5251ET
    In stock 3 in stock
    In stock Same day dispatch on orders before 15:30
    In stock More stock (1) on order
    £186.00
    Saving: £114.22
    Arctic Spa Heater
    Curved Tee Style
    3.6kW
    2" x 2" Tailpiece
    • HydroQuip Heater
    • 2.0kW
    • Replaces: C2200-0800ET
    Awaiting delivery Out of Stock
    Email me when back in stock
    Awaiting delivery More stock (2) on order
    £89.00
    Saving: £20.00
    HydroQuip Flo-Thru Heater
    2.0kW
    Incoloy Element
    PSI Switch
    Spares Available
    • LX Heater
    • Model: H30-R2 + Switch Cable
    • 3.00kW / 13.6 AMPS
    • Incoloy Stainless Element
    • Plumbing Connection: 1.50" O/D
    In stock 4 in stock
    In stock Same day dispatch on orders before 15:30
    In stock More stock (5) due on 18/02/2020
    £64.49
    Saving: £42.23
    Spares Available

     

  • LX Whirlpool Bath Heater
  • Model: H30-R3 + Switch Cable
  • 3.00kW / 13.6 AMPS
  • Incoloy Stainless Element
  • Overall Length: 340mm
  • Plumbing Connection: 1.50" O/D
  • In stock 3 in stock
    In stock Same day dispatch on orders before 15:30
    £74.49
    Saving: £17.42

     

  • LX Heater
  • Model: H30-R1 + Switch Cable
  • 3.00kW
  • 380mm Length
  • In stock 4 in stock
    In stock Same day dispatch on orders before 15:30
    In stock More stock (3) due on 18/02/2020
    £74.49
    Saving: £23.70
    Spares Available

     

  • LX Whirlpool Bath Heater
  • Model: H30-R1 + Switch Cable
  • 3.00kW / 13.6 AMPS
  • Incoloy Stainless Element
  • Overall Length: 340mm
  • Plumbing Connection: 1.50" O/D
  • In stock 7 in stock
    In stock Same day dispatch on orders before 15:30
    In stock More stock (20) due on 18/02/2020
    £62.49
    Saving: £14.56

     

  • Davey / Spa-Quip Heater
  • Model: SP600/601/800
  • 2000W - C40
  • In stock 3 in stock
    In stock Same day dispatch on orders before 15:30
    £213.99
    Saving: £56.21

     

    • Davey / Spa-Quip Heater
    • Models: SP600/SP601/SP800
    • 3000W - C07
    In stock 1 in stock
    In stock Same day dispatch on orders before 15:30
    £213.99
    Saving: £56.21

     

  • Davey / Spa-Quip Heater
  • Model: SP750
  • 2000W - B43
  • In stock 1 in stock
    In stock Same day dispatch on orders before 15:30
    £210.49
    Saving: £69.99

     

  • Davey / Spa-Quip Heater
  • Model: SP750
  • 3500W - U14
  • In stock 1 in stock
    In stock Same day dispatch on orders before 15:30
    £190.00
    Saving: £124.40
    • Davey / SpaQuip Heater
    • Model: SP1200
    • 3500W - C17
    In stock 1 in stock
    In stock Same day dispatch on orders before 15:30
    £286.49
    Saving: £95.32
    • SpaQuip / Davey Heater
    • Model: SP1200
    • 4500Watts
    Available for Pre Order Available for Pre Order
    Available for Pre Order Estimated Dispatch on 01/02/2020
    Available for Pre Order More stock (2) due on 24/01/2020
    £291.99
    Saving: £89.82
    • SpaQuip / Davey Heater - SP400
    • 2.0kW - Q950205
    • Comes with Heater Tee & Orings
    In stock 2 in stock
    In stock Same day dispatch on orders before 15:30
    £317.49
    Saving: £105.41
    SpaQuip / Davey Heater
    Works with SP400
    2.0kW
    Q950205
    • SpaQuip / Davey Heater Assembly 
    • For Spa Power Control Packs
    • 6.0kW
    In stock 2 in stock
    In stock Same day dispatch on orders before 15:30
    £286.49
    Saving: £95.32

     

    • Thermcore Flow Thru Heater
    • Model: C2150-0210-1
    • 1.50kW
    • 1.5" Connections
    • Balboa, Canadian
    Discontinued Discontinued

     

    • Thermcore Flow Thru Heater
    • Model: C2270-0056
    • 2.7kW
    • Suitable for Jacuzzi
    Discontinued Discontinued
    SpaQuip / Davey Heater
    Works with SP600/SP601/SP800
    1.5kW
    B47